Mavrakos Photo.jpg

 

 

 

 

 

 

CURRICULUM VITAE

 

 

 

of

 

Prof. Dr.-Ing. SPYROS A. MAVRAKOS

Director of the Laboratory for Floating Structures and Mooring Systems

School of Naval Architecture and Marine Engineering,

National Technical University of Athens

9, Heroon Polytechniou Ave., 157 73 Zografou / Athens, Greece

e-mail: mavrakos@naval.ntua.gr

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Athens, October 2010
TABLE OF CONTENTS

 

1.      GENERAL BIOGRAPHICAL DATA.. 3

2.      PROFESSIONAL HISTORY.. 3

3.      RESEARCH INTERESTS. 4

4.      PROFESSIONAL SOCIETY MEMBERSHIPS. 5

5.      UNIVERSITY PROFESSIONAL SERVICES. 5

6.      SCIENTIFIC AND PROFESSIONAL ACTIVITIES. 6

7.      TEACHING – INSTRUCTING.. 8

7.1          Graduate Courses. 8

7.2          Post – Graduate Courses. 8

7.3          Supervision of PhD Theses. 9

8.      RESEARCH ACTIVITIES. 10

9.      PRINCIPAL PUBLICATIONS. 14

9.1          In refereed international Journals. 14

9.1.1.     Publications related to the scientific area of offshore hydrodynamics. 14

9.1.2      Publications related to the hydrodynamic analysis and evaluation of the efficient of wave energy converters  15

9.1.3      Publications related to the static and dynamic analysis and optimum design of mooring systems and slender marine structures-Applications. 15

9.2          In refereed international Conferences. 16

9.2.1      Publications Related to the scientific area of offshore hydrodynamics. 16

9.2.2      Publications related to the hydrodynamic analysis and evaluation of the efficient of wave energy converters  19

9.2.3      Publications related to the static and dynamic analysis and optimum design of  mooring systems and slender marine structures-Applications. 20

9.2.4      Publications related to the design of underwater oceanographic vehicles. 22

9.3          Books – Chapter in Books. 22

9.4          Citations. 23

9.4          University textbooks. 36

9.5          Publications in National and International Workshops, Newspapers. 37

9.6          Technical Reports. 38

10.         PARTICIPATION IN RESEARCH PROJECTS AND SERVICES. 47

11.         DEVELOPED COMPUTER CODES. 51


1.         GENERAL BIOGRAPHICAL DATA

 

 

DATE OF BIRTH                    28 November 1952

 

MARITAL STATUS               Married, two children

                                                           

EDUCATION                           Secondary level:

                                                    Varvakios Muster School, Athen, 1964 – 1970

 

                                                    University Level:

NATIONAL TECHNICAL UNIVERSITY OF ATHENS

                                                    Diploma in Naval Architecture and Marine Engineering, Sept. 1976

 

                                                    RHEINISCH-WESTFÁÅLISCHE TECHNISCHE HOCHSCHULE AACHEN (RWTH-Aachen)

                                                    Dr.-Ing. in Ocean Engineering, Feb. 1981.

 

 

2.                  PROFESSIONAL HISTORY

 

Oct. 1996 -                                  Professor of Floating Structures, School of Naval Architecture and Marine Engineering, National Technical University of Athens

 

                                                    Aug. 2010 – Oct. 2010:     On Sabbatical leave, Visiting Prof., Technical University of Berlin, Germany, Institute of Ocean Engineering, Division of Naval Architecture and Ocean Engineering. 

 

 

July 1991- Sept. 1996                Associate Professor of Floating Structures, School of Naval Architecture and Marine Engineering, National Technical University of Athens

 

Febr. 1992 - Aug. 1992: On Sabbatical leave, Visiting Assoc. Prof., Department of Ocean Engineering, MIT, Massachusetts, Boston, USA 

 

June 1987 - June 1991               Assistant Professor of Floating Structures, School of Naval Architecture and Marine Engineering, National Technical University of Athens

 

April 1984 -May 1987              Lecturer of Floating Structures, School of Naval Architecture and Marine Engineering, National Technical University of Athens

 

Aug. 1985 – June 1985:    Visiting Researcher, RWTH – Aachen, Technical University of Aachen, Northern Rhine – Westfalia, Department of Ocean Engineering, Germany.

 

Jan. 1982  - Febr. 1983              Military Service in the Hellenic Navy

 

Febr. 1980 - Dec.1981               Research Engineer (BATIIa), Department of Mechanical Engineering, Division of Ocean Engineering, RWTH-Aachen

 

Nov. 1977 - Jan. 1980                Research Assistant, Department of Mechanical Engineering, Division of Ocean Engineering, RWTH-Aachen

 

3.      RESEARCH INTERESTS

 

·      Development of theoretical and numerical methods and computer software for the solution of the linear and non-linear diffraction and radiation problems between surface gravity waves and single or multiple interacting large volume floating structures. Evaluation of the sea loads and motion with applications to:   

ü  Hydrodynamic analysis and design of several types of offshore structures for the ocean exploitation (structures for the oil exploration, gas import floating terminals, wave energy converters, floating wind turbines, etc.)

ü  Design of open sea fish-farming installations

ü  Hydrodynamic analysis, design and evaluation of several types of floating breakwaters and floating marinas

ü  Design of oceanographic surface buoys for harsh marine environment

ü  Design of autonomous underwater vehicles (AUV’s) for oceanographic applications

 

·      Numerical and experimental investigation and optimum design of mooring systems for shallow- and deep-water applications

 

·      Numerical and experimental evaluation of the hydrodynamic behavior and the efficiency characteristics of several types of single or interacting wave energy converters using different theories to evaluate the captured wave energy potential (point absorber, exact theories, etc.)

 

·      Hydromechanic analysis of moored floating structures in frequency- and time-domain by accounting for the coupled dynamics of the floater and of the mooring system with applications to:

ü  Hydromechanic analysis of offshore wind parks

ü  Wave propagation and analysis of the dynamic behavior of moored ships in harbors

 

4.      PROFESSIONAL SOCIETY MEMBERSHIPS

 

German Association of Mechanical Engineers (VDI)

International Society of Offshore and Polar Engineers (ISOPE)

Society of Naval Architects and Marine Engineers (SNAME)

Technical Chamber of Greece (TEE)

Greek Association of Naval Architects

Hellenic Institute of Marine Technology

 

 

5.      UNIVERSITY PROFESSIONAL SERVICES

 

·                    Head of the School of Naval Architects and Marine Engineering, National Technical University of Athens, 1999-2001

·                    Head of the Marine Structures Division of the School of Naval Architects and Marine Engineers, National Technical University of Athens, 2003-2007

·                    Director, Laboratory for Floating Structures and Mooring Systems, School of Naval Architects and Marine Engineering, 2005 -

·                    Director, Post-Graduate Course in Marine Technology and Science, National Technical University of Athens, 1998 –

·                    Deputy Head, Council for Post-Graduate Education, National Technical University of Athens, 2003 - 2006

·                    Deputy Head, Department of Naval Architecture and Marine Engineering, National Technical University of Athens, 1993- 1997.

·                    Member, Educational Council, National Technical University of Athens, 1993-1994.

·                    Member, Council for Post – Graduate Education, National Technical University of Athens, 1997 -

·                    Member, Continuing Education Council, National Technical University of Athens, 1993-1997.

·                    Member, Committee of the Computer Center, National Technical University of Athens, 1984-1994.

·                    Chairman, Committee for Establishing the Greek Research Institute on Marine Technology and Ocean Engineering, National Technical University of Athens, 1993

·                    Member, Committee for establishing of Post-Graduate Studies on Ocean Engineering, National Technical University of Athens, 1993-1997.

 

6.      SCIENTIFIC AND PROFESSIONAL ACTIVITIES

 

·                    Chairman of the 26th International Workshop on Water Waves and Floating Bodies (IWWWFB2011), to be held between 17-20 April 2011, Athens, Greece

·                    Chairman of the 24th International Conference on Offshore Mechanics and Arctic Engineering (OMAE2005, 12 – 17 June 2005, Chalkidiki, Greece)

·                    Chairman of the 10th International Conference of the Maritime Association of the Mediterranean (IMAM 2002, May 2002, Rethymnon, Crete

·                    Member of the Technical Scientific Committee of the 7th and 8th European Wave and Tidal Energy Conferences (EWTEC), Sept. 2007, Porto, Portugal and Sept. 2009, Uppsala, Sweden

·                    Member of the technical program committee of the Offshore Mechanics and Arctic Engineering Conferences (OMAE2006, OMAE2007, OMAE2008 and OMAE2009)

·                    General Secretary, Hellenic Institute of Marine Technology, 1998 – 2000

·                    Vice President, Hellenic Institute of Marine Technology, 2000 – 2002

·                    Visiting Professor, Technical University of Berlin, Germany, Institute of Ocean Engineering, Division of Naval Architecture and Ocean Engineering.  Aug. 2010 – Oct. 2010 (on Sabbatical leave)

·                    Visiting Assoc. Professor at the Ocean Engineering Department of the Massachusetts Institute of Technology (MIT),  Feb. 1992 – Aug. 1992 (on sabbatical leave)

·                    Visiting Researcher, Division of Ocean Engineering, RWTH - Aachen, July – August 1985.

·                    Member, Editorial Board “Journal of Marine Structures”, 2007 -

·                    Member, Committee V.7 - Slender Marine Structures, International Ship and Offshore Structures Congress (ISSC), 1988-1994.

·                    Member, Committee I.2 - Loads, International Ship and Offshore Structures Congress (ISSC), 1994-2000 and 2003-2009

·                    Member, Committee on Floating Production Systems, International Ship and Offshore Structures Congress (ISSC), 2000-2003.

·                    Member, Committee V.4 – Ocean Wave and Wind Utilization, International Ship and Offshore Structures Congress (ISSC), 2009-.

·                    Participant, Invited participation in an International Comparative Study on the Hydrodynamic Analysis of large floating production (FPS 2000) organized by Norsk-Hydro (Nov. 1989).

·                    Co-organizer and Scientific responsible of an International Comparative Study on the prediction of the mooring induced damping of floating structures, ISSC’97

·                    Member, Committee for Evaluation of Foreign Educational Degrees on Naval Architecture and Marine Engineering (DICATSA), 1984-1996

·                    Scientific responsible of the Working Group on the Efficiency of Floating Breakwaters, Technical Chamber of Greece (TEE), 1992-1995.

·                    Member, Working Group on Marine and Ocean Engineering, Technical Chamber of Greece, 1993-1995.

·                    Member, Short list of Experts of the Directorate General for Energy, Hydrocarbon Division, E.U., for providing service in the field of Energy.

·                    Reviewer of International Journals, Conferences and Research Programs:

            Journal of Fluid and Structures, Journal of Ocean Engineering, Journal of Applied Ocean Research, Journal of Marine Structures, Journal of Offshore and Polar Engineering, Journal of Offshore Mechanics and Arctic Engineering, Scientific Journal of the Technical Chamber of Greece, OMAE2009, OMAE2008, OMAE2007 OMAE 2006, OMAE2005, EWTEC2007, EWTEC2009, ISOPE2006, ISOPE2005, IMAM2002, IMAEM 90 Congress, EUROMS 90 Congress, ISOPE’92, ISOPE’96, 3rd National Congress on Theoretical and Applied Mechanics, International Symposium on Computational Structures Technology (CST’ 94), Hellenic General Secretariat of Research and Development, Hellenic Organization for Small and Medium Size Enterprises.

·                    Session Chairman in ÏÌÁÅ2005, ÏÌÁÅ2006, ÏÌÁÅ2008, 7th European Wave and Tidal Energy Conference, 8th European Wave and Tidal Energy Conference, Offshore Mechanics and Polar Engineering (ISOPE’ 92).

·                    Chairman, Committee for Doctoral Title Award, Department of Ocean Engineering, M.I.T., June 1992.

·                    Member, Committee for Award of the Honorary Doctoral Degree to the Professors Francis Ogilvie, M.I.T. and Horst Nowacki, Technical University of Berlin, 1996.

·                    Member, Steering Committee of the 25th West European Graduate Education in Marine Technology (WEGEMT) School on “Surface Support of Subsea Activities: Dynamics and Control in Extreme Environments”, University of Strathclyde, Department of Ship & Marine Technology, Sept. 1996.

·                    Participant, Invited participation in the 21st ITTC Ocean Engineering Committee Questionnaire on the evaluation of efficient time-domain calculation procedures to predict the slowly varying oscillations of moored offshore structures.

 


7.      TEACHING – INSTRUCTING

 

During the twenty seven years as faculty member in the School of Naval Architecture and Marine Engineering of the National Technical University of Athens, I taught following graduate and post-graduate courses:

 

7.1  Graduate Courses

 

  1. “Design of Offshore Structures”, 8th Semester of the Graduate Curriculum (1985 - ). The Course has been introduced in the Graduate Course Program after my appointment (1984) with the School of Naval Architecture and Marine Engineering.
  2. “Structural Vibrations of the Ship Hull”, 7th Semester of the Graduate Course Program, School of Naval Architecture and Marine Engineering (1984 – 1992).
  3. ‘Special Topics of the Offshore Structures Design”, 9th Semester of the Graduate Course Program, School of Naval Architecture and Marine Engineering (1993 - 2003).
  4. “Moorings for Floating Structures”, 9th Semester of the Graduate Course Program, School of Naval Architecture and Marine Engineering (2004 - ).
  5. “Dynamics of Marine Structures”, 6th Semester (1999)

 

7.2  Post – Graduate Courses

 

In the Academic Year 1998 – 1999 the Post-Graduate Program in “Marine Technology and Science” has been inaugurated. The program is leaded by the School of Naval Architecture and Marine Engineers, NTUA. Since its commencement, I am servicing as elected Director of the Program (1998 - ).  In the program are participating the Schools of Mechanical Engineering, Electrical and Computer Engineering, Rural and Surveying Engineering, Applied Mathematical and Physical Science from the NTUA, The Department of Physics from the National and Kappodistrian University of Athens, and the National Center for Marine Research (NCMR).

 

I taught following courses in the above Post-Graduate Course

 

  1. “Environmental Conditions and Sea Loads on Marine Structures”, 1st Semester, 4.5hrs/week
  2. “Hydromechanic Analysis and Optimal Mooring Design of Moored Floating Structures”, 2nd Semester, 3hrs/week
  3. “Seminars on Recent problems in Marine and Underwater Technology”, 2nd Semester, 3hrs/week
  4. “Non-Conventional Harbor Works”, 3rd Semester, 3hrs/week

7.3  Supervision of PhD Theses 

 

1.      Chatjigeorgiou, I.K.: “Methods for the non-linear dynamic analysis of wire and synthetic mooring lines under low and high pretension”, finished 1997. 

2.      Bourma, P.: “Design of an autonomous underwater vehicle advancing with changing of buoyancy”, Finished, 2010.   

3.      Mazarakos, Th.: “Second – order exciting wave forces and wave drift damping on floating structures advancing with small forward speed in waves”, Finished, 2010. 

4.      Konispoliatis, D.: “Hydrodynamic analysis of floating oscillating water column devices for the wave energy absorption in the open sea”, On-going.

 

 


8.      RESEARCH ACTIVITIES

 

During my long - lasting involvement in topics related to the research area of ocean engineering, my research activities focused on the following research topics:

 

  1. Development of theoretical methods and numerical tools for the hydrodynamic analysis and design of marine structures

 

1.1  Analytical methods for the solution of the linear diffraction and radiation problems for the body –wave interaction in the case of arbitrarily shaped bodies of revolution with vertical symmetry axis and surface gravity waves. Evaluation of the wave loads, motions, hydrodynamic parameters, mean second-order wave loads in all degrees of freedom using momentum and direct integration methods

1.2   Singularity distribution methods for the numerical solution of the

linear body - wave interaction problem for  arbitrarily shaped bodies and evaluation of the wave loads, motions and mean second – order forces

1.3  Analytical solution of the time-dependent second-order sum- and difference-frequency body – wave interaction problem for arbitrarily shaped bodies of revolution with vertical symmetry axis

1.4  Development of fast methods and numerical tools for the evaluation of the dynamic behavior of semi-submersibles in waves (method of hydrodynamic synthesis)

1.5  Analytical evaluation of the hydrodynamic interactions among adjacent floating arbitrarily shaped vertical bodies of revolution in waves (calculation of the first-order exciting wave forces, motions, hydrodynamic parameters, mean second – order drift forces and moments).

1.6  Evaluation of the mean second-order wave drift forces for slowly advancing single- and multiple interacting vertical bodies of revolution in waves and calculation of the associated second – order wave-drift damping.

1.7  Analytical solution of the body-wave-current interaction for the case of vertical cylinders.

1.8  Hydrodynamic analysis of interconnected floating structures and evaluation of the motions, shear forces and moments at the connection points.

 

The research work mentioned in the above section 8.1, has been implemented in:

 

ü  Hydrodynamic analysis and design of several types of marine structures (see chapter 10, research programs #1, 2, 4, 18, 19, 22, 25, 29, 31, 32, 35, 38, 39, 40, 41).

ü  Hydrodynamic design of oceanographic surface buoys for harsh marine environment (see publication A.16, chapter 9 of the present CV)

ü  Hydrodynamic analysis and design of floating marinas, piers, floating parking and wave breakers (see chapter 10, research programs # 7, 10, 11, 17, 24).

ü  Analysis and design of fishing cages for the open sea (see chapter 10, research program #9).

ü  Motion response analysis and dynamics of underwater oceanographic glider (see chapter 10, research program #30).

ü  Flow field study and cruise stability during towing of ships in channels (see chapter 10, Research Program #34)

 

  1. Development of theoretical methods and numerical tools for the static and dynamic analysis and the optimum design of single and multi-leg mooring systems

 

2.1 Mooring lines made of wire or / and chain with attached submerged buoys for applications in the open sea and in large depth (see chapter 10, Research programs #5, 6, 8, 13, 14).

2.2 Mooring systems made of synthetic fibers with low and high pretension

2.3 Moorings for oceanographic buoys in harsh marine environment (see publication A.16, chapter 9 of the CV).

 

3.   Hydromechanic analysis of the dynamic behavior of floating moored structures in the frequency- and time-domain by accounting for the coupling of the floater and the mooring system

 

3.1 Motion response analysis in the frequency- and the time-domain; evaluation of the slowly-varying resonant motions of the moored structure.

3.2 Evaluation of the mooring-line induced damping

 

The research work mentioned in the above section 8.3, has been    implemented in:

 

ü  Hydromechanic analysis and design of floating wind turbines (evaluation of the loading and the motions due to the combined action of waves, wind and sea currents, analysis and design of mooring system), see chapter 10, research program #33.

ü  Motion response analysis of interconnected floating structures (see chapter 10, research programs #29, 36).

ü  Analysis of the dynamic behavior of moored ships in harbors (see chapter 10, Research Programs #15, 16).

 

4.  Numerical and experimental analysis and efficiency evaluation of several wave energy devices

 

4.1  Approximate (point absorber) and exact analytical methods (solution of the diffraction and radiation problems for the WEC) for the evaluation of the absorbed wave energy.

4.2  Single or array arrangements

 

The above mentioned research work in section 8.4, has been implemented in the research programs #12, 20, 23, 26, 27 and 28 (see chapter 10).

 

  1. Sloshing of liquids in arbitrarily shaped bodies of revolution with vertical symmetry axis (see research program #3, chapter 10)

 

  1. Wave propagation in harbors (see program #37, chapter 10).

 

My personal involvement in the above mentioned research areas turn up from the list of publications in chapter 9 of the present CV.

 

Following research collaborations in the broader field of Ocean Engineering are worthwhile to be mentioned:

 

  1. With the Ocean Engineering Department of the Massachusetts Institute of Technology (MIT) and the Woodshole Oceanographic Institution during my sabbatical leave as Visiting Assoc. Professor at MIT (Febr. 1992 – August 1992). During this stay the publication entitled: “Design of oceanographic surface moorings for harsh weather environments”, Transactions S.N.A.M.E., 103, 1995, co-authored by M. Grosenbauch of the Woodshole Oceanographic Institute (see publication A.16, chapter 9).
  2. With the National Center for Marine Research (NCMR) in the framework of: (a) the Post-Graduate Course in Marine and Ocean Engineering and Science, in which NCMR participates, and (b) a Research Program sponsored by the Greek General Secretariat for Research and Technology (program PENED 2003), dealing with the “Design of an autonomous underwater oceanographic monitoring vehicle advancing by changing buoyancy”. Some first results of this research activity have been presented in the publication entitled: “Quality control protocol for an autonomous underwater glider”, IMDIS Conference, 2008, Athens, Greece (see publication F.6, chapter 9).
  3. My Collaboration with the National Center for Marine Research (NCMR) and MIT in the framework of a research program of the Marine Archaeological Department of the Greek Ministry for Culture (see research program #21, chapter 10), dealing with the imaging of the seabed in the Lefka bay in the Island of Nisiros, using autonomous underwater vehicles (AUV’s).

 

Fields of Ocean Technology, in which the Laboratory of Floating Structures and Mooring Systems of the National Technical University of Athens are currently involved, are the knowledge – based design of structures and systems for the marine energy sources exploitation (offshore wind and wave energy). This is applicable in particular:

 

ü  To concepts and devices for the exploitation of the wave energy

ü  To concepts and devices for the exploitation of the marine currents energy

ü  To the offshore wind energy sector (floating and fixed offshore wind turbines and parks, multi - use floating structures for the combined exploitation of the offshore wind and wave energy, etc).

 

 

 

 


9.      PRINCIPAL PUBLICATIONS

9.1       In refereed international Journals

9.1.1.   Publications related to the scientific area of offshore hydrodynamics

 

1.                  Mavrakos, S.A., “Wave loads on a stationary floating bottomless cylindrical body with finite wall thickness”, Applied Ocean Research, 7(4), 1985, 213-224.

2.                  Kokkinowrachos, K., Mavrakos, S.A., Asorakos, S., “Behavior of vertical bodies of revolution in waves”, Ocean Engineering, 13(6), 1986, 505-538.

3.                  Mavrakos, S.A., Koumoutsakos, P., “Hydrodynamic interaction among vertical axisymmetric bodies restrained in waves”, Applied Ocean Research, 9(3), 1987, 128-140.

4.                  Mavrakos, S.A., “Hydrodynamic Coefficients for a thick-walled bottomless cylindrical body floating in water of finite depth”, Ocean Engineering, 1988, 15(3), 213-229.

5.                  Mavrakos, S.A., “The vertical drift force and pitch moment on axisymmetric bodies in regular waves”, Applied Ocean Research, 1988, 10(4), 207-218.

6.                  Mavrakos, S.A., “Hydrodynamic coefficients for groups of interacting vertical axisymmetric bodies”, Ocean Engineering, 18(5), 1991, 485-515.

7.                  Mavrakos, S.A., “Hydrodynamic characteristics of floating toroidal bodies”, Ocean Engineering, 24(4), 1997, 381-399.

8.                  Mavrakos, S.A. “Hydrodynamic coefficients in heave of two concentric surface-piercing truncated circular cylinders”, Applied Ocean Research, 26 (3-4), 2004, 84-97.

9.                  Chatjigeorgiou, I. K., Mavrakos, S.A. “Semi-Analytical Formulation of the Second – Order Wave Diffraction by a Truncated – Compound Surface – Piercing Cylinder”, Journal of Ship Technology Research (Schiffstechnik), 53, 2006, 26 – 38.

10.              Mavrakos, S.A., Chatjigeorgiou, I.K. “Second – Order Diffraction by a Bottom – Seated Compound Cylinder”, Journal of Fluids and Structures, 22(3), 2006.

11.              Chatjigeorgiou, I.K., Mavrakos, S.A. “Second-order sum-frequency wave diffraction by a truncated surface-piercing cylinder in bi-chromatic waves”, Journal of Marine Science and Technology, 12(4), 2007, 218 – 231.

12.              Mavrakos, S.A., Chatjigeorgiou, I.K. “Second-order hydrodynamic effects on an arrangement of two concentric truncated vertical cylinders”, Marine Structures, 22(3), 2009, 545 – 575.

13.              Chatjigeorgiou, I.K., Mavrakos, S.A. “An analytical approach for the solution of the hydrodynamic diffraction by arrays of elliptical cylinders”, Applied Ocean Research, 32, 2010, 242 - 251.

 

9.1.2    Publications related to the hydrodynamic analysis and evaluation of the efficient of wave energy converters

 

14.              Mavrakos, S.A., Kalofonos, A., “Optimum power absorption by arrays of interacting vertical axisymmetric wave-energy devices”, Journal of Offshore Mechanics and Arctic Engineering, 119, 1997, 244 – 251.

15.              Mavrakos, S.A., McIver, P., “Comparison of Methods for computing hydrodynamic characteristics of arrays of wave power devices”, Applied Ocean Research, 19, 1997, 283-291.

16.              Mavrakos, S.A., Katsaounis, G., “Effects of floater’s Hydrodynamics on the performance of tightly moored wave energy converters” (accepted for publication), Journal IET Renewable Power Generation.

 

9.1.3    Publications related to the static and dynamic analysis and optimum design of mooring systems and slender marine structures-Applications

 

17.              Papazoglou, V.J., Mavrakos, S.Á. and Triantafyllou, M., “Nonlinear Cable Response and Model Testing in Water”, Journal of Sound and Vibration, 140(1), 1990, 103-115.

18.              Mavrakos, S.A., Papazoglou, V.J., Triantafyllou, M.S., Chatjigeorgiou, J., “Deep Water Mooring Dynamics”, Marine Structures, 9, 1996, 181-209.

19.              Grosenbauch, M.A., Mavrakos, S.A., “Design of oceanographic surface moorings for harsh-weather environments”, Transactions S.N.A.M.E., 103, 1995.

20.              Mavrakos, S.A., Chatjigeorgiou, J., “Dynamic behavior of deep water mooring lines with submerged buoys”, Computers and Structures, 64 (1 – 4), 1997, 819 – 835.

21.              Brown, D.T., Mavrakos, S.A., “Comparative Study on Mooring Line Dynamic Loading”, Marine Structures, 12 (3), 1999, 131-151.

22.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Comparative evaluation of numerical schemes for 2D mooring dynamics”, International Journal of Offshore and Polar Engineering. 10(4), 2000, 301-309.

23.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Dynamic Behavior of a Marine          Cable Under Snap-Loading Conditions”, Journal of Ship Technology Research, Schiffstechnik, 48, 2001, pp.171-180.

24.              Chatjigeorgiou, I.K., Mavrakos, S.A., Bounded and Un-bounded     Coupled Transverse Response of Parametrically Excited Vertical Marine Risers and Tensioned Cable Legs for Marine Applications”, Applied Ocean Research, 2003, 24(6), pp. 341-354.

25.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Coupling Instabilities for Marine Slender Structures with Applications to Elastic Risers and Cables”, Journal of Ship Technology Research, Schiffstechnik, 2005, 52(1), 2 – 13.

26.              Chatjigeorgiou, I.K. and Mavrakos, S.A., “Nonlinear resonances of parametrically excited risers-numerical and analytic investigation for Ù=2ù1”, Journal of Computers and Structures, 2005, 83(8-9), 560 – 573.

 

9.2       In refereed international Conferences

9.2.1    Publications Related to the scientific area of offshore hydrodynamics

 

1.                  Êokkinowrachos, K., Bardis, L., Mavrakos, S.A., “Drift forces on one and two-body structures in waves”, Proceedings, 3rd International Conference on the Behaviour of Offshore Structures (BOSS’82), Hemisphere Publishing Co., New York, 1982, Vol. 1, 467-489.

2.                  Bardis, L., Mavrakos, S.A., “Hydrodynamic analysis of large offshore units”, Proceedings, IIIrd I.M.A.E.M. International Congress on Marine Technology, Athens, Greece, June 1984, 505-513.

3.                  Mavrakos, S.A., Bardis, L., “ Hydrodynamic analysis of floating solar ponds’, Proceedings, Marine Computers’ 86, The Society of Naval Architects and Marine Engineers (S.N.A.M.E.), MIT, Cambridge, U.S.A., 1986, 24.1-24.12.

4.                  Mavrakos, S.A., Bardis, L., Balaskas, C., “Horizontal and vertical drift forces on axisymmetric bodies in regular waves”, Proceedings, 4th I.M.A.E.M. International Congress on Marine Technology, Varna, Bulgaria, June 1987, 27.1-27.8.  

5.                  Mavrakos, S.A., Bardis, L., Peponis, V., “A hybrid integral equation method for the wave diffraction around large bodies”, Proceedings, 2nd National Symposium on Theoretical and Applied Mechanics, Athens, Greece, June 1989.

6.                  Mavrakos, S.A., Peponis, V., “Hydrodynamic characteristics of single and multi-component large structures floating in waters of variable depth”, 5th IMAEM International Congress on Marine Technology, Athens, May 1990, 267-271.   

7.                  Mavrakos, S.A., Peponis, V., “Second-order slowly-varying forces on axisymmetric bodies restrained in irregular waves”, Proceedings, 3rd National Symposium on Theoretical and Applied Mechanics, Athens, Greece, June 1992.

8.                  Mavrakos, S.A., Peponis, V., “Sum- and difference frequency loads on axisymmetric bodies restrained in irregular waves”, Proceedings, 2nd International Offshore and Polar Engineering Conference (ISOPE’92), San Francisco, U.S.A., June 1992, Vol. III, 546-553.

9.                  Mavrakos, S.A., “Hydrodynamic characteristics for groups of interacting axisymmetric bodies submerged near the sea surface or the sea bed”, Proceedings, 3rd International Offshore and Polar Engineering Conference (ISOPE’93), Singapore, June 1993.

10.              Mavrakos, S.A., Grigoropoulos, G., “Numerical and experimental prediction of wave loads on vertical cylinders”, Proceedings, 5th International Conference on Hydraulic Engineering Software (HYDROSOFT’94), Computational Mechanics Publications, Porto Carras, Greece, 1994, Vol. 2, 115-122.

11.              Mavrakos, S.A., “Mean drift loads on multiple vertical axisymmetric bodies in regular waves”, Proceedings, 5th International Offshore and Polar Engineering Conference (ISOPE’95), The Hage, The Netherlands, 1995, Vol. 3, 547-555.

12.              Mavrakos, S.A. “The scattered wave field by vertical cylinders in a narrow tank”, Proceedings, 4th National Symposium on Theoretical and Applied Mechanics, Xanthi, Greece, 1995, Vol II, 819-829.

13.              Mavrakos, S.A., “Diffraction loads on arrays of truncated hollow cylinders”, Proceedings, 1st International Conference on Marine Industry (MARIND’ 96), Varna Bulgaria, 1996, Vol. III, 91-105.

14.              Grigoropoulos, Gr., Mavrakos, S.A., Loukakis, T., “On the wave breaking efficiency of an array of floating vertical cylinders”, Proceedings, 6th International Symposium on Offshore and Polar Engineering (ISOPE’96), Los Angeles, 1996, Vol. III, 587-594.

15.              Mavrakos, S.A., “Wave loads on large-volume offshore structures”, Proceedings, 13th International Ship and Offshore Structures Congress (ISSC’97), Trondheim, Norway, 1997, Vol. 1, 313-324.

16.              Mavrakos, S.A., “Wave loads on large-volume offshore structures”, Proceedings, 14th International Ship and Offshore Structures Congress (ISSC’97), Nagasaki, Japan, 2000, Vol. 1.

17.              Mavrakos, S.A., Chatjigeorgiou, I.K., Grigoropoulos, G. and Maron A., “Scale Experiments for the Measurement of Motions and Wave Run-Up on a TLP Model, Subjected to Monochromatic Waves”, Proceedings, International Conference of Offshore and Polar Engineering (ISOPE 2004), 2004, Toulon, France.

18.              Mavrakos, S.A., Chatjigeorgiou, I.K. and Lentziou, D. “Wave Run-up and Second-order Wave Forces on a Truncated Circular Cylinder due to Monochromatic Waves”, Proceedings, 24th Int. Conf Offshore Mechanics and Arctic Engineering (OMAE 2005), Paper#67104, Halkidiki, Greece, 2005.

19.              Chatjigeorgiou, É.Ê., and Mavrakos, S.A. “Second-order diffraction by a surface piercing truncated compound cylinder”, Proc 11th Int. Maritime Association of the Mediterranean Conf, IMAM 2005, Lisboa, Portugal.

20.              Mavrakos, S.A. “Hydrodynamic characteristics of two concentric surface – piecing floating circular cylinders”, Proceedings, 11th Int Maritime Association of the Mediterranean Conf, IMAM 2005, Lisboa, Portugal.

21.              Mavrakos, S.A., Chatjigeorgiou, I.K. “Second-order      diffraction by two concentric truncated cylinders, Proceedings, 21st            International Workshop on Water Waves and Floating Bodies,             Loughborough, U.K. 2006.

22.              Chatjigeorgiou, I.K., Mavrakos, S.A., Xiros, N., ‘Wave-current interaction with a vertical cylinder in cross flow: a semi-analytical approach”, Proceedings, 8th International Conference on Computational Structures Technology, Las Palmas de Gran Canaria, 2006, Spain

23.              Mavrakos, S.A., “Computational Methods for Fixed and Floating Structures and Mooring and Cable Systems”, Chapters 3.1 and 3.2 in Loads’ Technical Committee Report, Proceedings, 19th International Ship and Offshore Structures Congress (ISSC’06), Southampton, U.K. 2006.

24.              Chatjigeorgiou, I.K., Mavrakos, S.A. “A semi-analytical formulation for the wave-current interaction problem with a vertical bottom-seated cylinder including square velocity terms”, 22nd International   Workshop on Water Waves and Floating Bodies,  Plitvice, Croatia, 2007

25.              Mavrakos, S.A., Chatjigeorgiou, I.K., Mazarakos, T., Thanos, I. “Second – order wave drift damping in hydrodynamically interacting large bodies”, Proceedings, International Conference of Offshore and Polar Engineering (ISOPE 2007), 2007, Lisbon, Portugal.

26.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Second-order hydrodynamic resonances on a compound truncated cylinder floating near the free surface”, 26th International Conference on Offshore Mechanics and Arctic Engineering (OMAE2007), June 10 -15, 2007, San Diego, California, USA.

27.              Chatjigeorgiou, I.K., Mazarakos, T.P., Mavrakos, S.A., “First - order hydrodynamic loading and wave drift damping by a bottom- seated cylinder in a wave-current co existing field”, Proceedings, 8th National Symposium on Theoretical and Applied Mechanics, 2007, Patra, Greece, 215 – 222.

28.              Bourma, P., Thanos, I., Chatjigeorgiou, I.K., Mavrakos, S.A., “Slowly – varying motions of two interconnected floating structures considered as a two degree of freedom oscillator”, 8th National Symposium on Theoretical and Applied Mechanics, 2007, Patra, Greece, 223 - 230.

29.              Chatjigeorgiou, I.K., Mavrakos, S.A., “The second-order diffraction – radiation problem for a piston – like arrangement”, Proceedings, 8th International Conference on Hydrodynamics, pp. 381 – 389, 2008, Nantes, France.

30.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Hydrodynamic diffraction by multiple elliptical cylinders”, Proceedings, 24th International Workshop on Water Waves and Floating Bodies, 2009, Zelenogorsk, Russia.

31.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Wave elevation between elliptical structures”, Proceedings, 28th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2009), Paper No: OMAE2009-80187, 2009, Honolulu, Hawaii, 31 May – 5 June, USA.

32.              Mavrakos, S.A., “Computation of wave – induced loads in multi – body interactions, body – wave – current interactions and cables, risers and moored structures”, Chapters 2.1.3, 2.1.4 and 4.1 in Loads’ Technical Committee Report, Proceedings, 20th International Ship and Offshore Structures Congress (ISSC’09), Seoul, Korea. 2009.

33.              Mavrakos, S.A., Mazarakos, Th. “Numerical and experimental investigation of first- and second-order wave loads on a four cylinder configuration at small horizontal drift velocity”, 4th International Workshop on Water Waves, 1-2 October 2009, Berlin, Germany.

34.              Chatjigeorgiou, I.K., Mavrakos, S.A., “The two dimensional Green’s function in elliptic coordinates”, Proceedings, 25th International Workshop on Water Waves and Floating Bodies, 2010, Harbin, China.

35.              Mavrakos, S.A., Mazarakos, Th., Konispoliatis, D., “First- and second-order hydrodynamic effects and wave run-up on a four cylinder configuration at small forward speed’, Proceedings, 9th HSTAM International Congress on Mechanics, 2010, 12-14 July, Limassol, Cyprus.

36.              Mavrakos, S.A., Konispoliatis, D., Mazarakos, Th., “Hydrodynamics of Concentric Cylinders’, Proceedings, 5th International Workshop on Water Waves, 30 Sept. - 1 Oct. 2010, Berlin, Germany.

 

9.2.2    Publications related to the hydrodynamic analysis and evaluation of the efficient of wave energy converters

 

37.              McIver, P., Mavrakos, S.A., Singh, G., “Wave-Power absorption by arrays of devices”, Proceedings, 2nd European Wave Power Conference, Lisbon, Portugal, 1995.

38.              Mavrakos, S.A., Kalofonos, A., “Optimum power absorption by arrays of interacting vertical axisymmetric wave-energy devices”, Proceedings, 15th International Conference on Offshore Mechanics and Arctic Engineering (OMAE’ 96), Florence, 1996, Vol. I, Part B, 133 - 141.

39.              Beattie, W.C., Wright, A., Thompson, A., Mavrakos, S.A., Lemonis, G., Nielsen, K., Holmes, B., Stasinopoulos, A. “Performance considerations in a power take – off unit based on a non – linear load”, Proceedings, 5th European Wave Energy Conference, 2003, Cork, Ireland.

40.              Mavrakos, S.A., Katsaounis, G., Nielsen, K., Lemonis, G. Numerical Performance Investigation of an Array of Heaving Wave Power Converters in Front of a Vertical Breakwater”, Proceedings, International Conference of Offshore and Polar Engineering (ISOPE 2004), 2004, Toulon, France.

41.              Mavrakos, S.A. and Katsaounis, G.: “Parametric Evaluation of the Performance Characteristics of Tightly Moored Wave Energy Converters”, Proceedings, 24th Offshore Mechanics and Arctic Engineering Symposium (OMAE 2005), Halkidiki, Greece.

42.              Mavrakos, S.A., Katsaounis, G., Chatjigeorgiou, I.K., “Performance Characteristics of tightly moored wave energy converters under first- and second-order wave loads”, Proceedings, 7th European Wave and Tidal Energy Conference, 2007, Porto, Portugal.

43.              Mavrakos, S.A., Katsaounis, G.M., Chatjigeorgiou, I.K., “Performance characteristics of tightly moored piston-like wave energy converter under first- and second-order wave loads”, Proceedings, 27th Offshore Mechanics and Arctic Engineering Symposium (OMAE 2008), 2008, Estoril, Portugal.

44.              Mavrakos, S.A., Katsaounis, G. Apostolides, M., “Effect of floaters’ geometry on the performance characteristics of tightly moored wave energy converters”, Proceedings, 28th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2009), Paper No: OMAE2009-80133, 2009, Honolulu, Hawaii, 31 May – 5 June, USA.

45.              Mavrakos, S.A., Katsaounis, G., “Parametric evaluation of the performance characteristics of tightly moored wave energy converters for several floaters’ geometries”, Proceedings, 8th European Wave and Tidal Energy Conference (EWTEC 2009), September 2009, Uppsala, Sweden.

9.2.3    Publications related to the static and dynamic analysis and optimum design of mooring systems and slender marine structures-Applications

 

46.              Mavrakos, S., Papazoglou, V.J., Triantafyllou, M., “An investigation into the feasibility of deep water anchoring systems”, Proceedings, 8th International Conference on Offshore Mechanics and Arctic Engineering (OMAE’ 89), The Hague, Netherlands, 1989, Vol. 1, 683-689.

47.              Mavrakos, S., Neos, L., Papazoglou, V.J. and Triantafyllou, M., “Systematic Evaluation of the Effect of Submerged Buoys Size and Location on Deep Water Mooring Dynamics”, Proceedings, PRADS’89 Symposium, Varna, Bulgaria, October 1989, Vol. 3, pp. 105.1-105.8.

48.              Papazoglou, V.J., Mavrakos, S.A., Triantafyllou, M.S. and Brando, P., “A Scaling Procedure for Mooring Experiments”, Proceedings, 1st European Offshore Mechanics Symposium (EUROMS’90), Trondheim, Norway, August 1990, 490-498.

49.              Mavrakos, S.A., Papazoglou, V.J., Triantafyllou, M..S. and Brando, P., “Experimental and Numerical Study on the Effect of Buoys on Deep Water Mooring Dynamics”, Proceedings, 1st International Offshore and Polar Engineering Conference (ISOPE’91), Edinburgh, U.K., 1991, Vol. II, 243-251.

50.              Mavrakos, S.A., “Mooring lines”, Proceedings, 11th International Ship and Offshore Structures Congress (ISSC’91), Wuxi, China, 1991, Vol. 2, 292-296.

51.              Mavrakos, S.A., Chatjigeorgiou, J. and Papazoglou, V.J., “Use of Buoys for Dynamic Tension Reduction in Deep Water Mooring Applications”, Proceedings, 7th International Conference on the Behavior of Offshore Structures (BOSS’94), Pergamon, Boston, July 1994, Vol. 2, 417-426.

52.              Mavrakos, S.A., “Global structural analysis models for mooring lines”, Proceedings, 12th International Ship and Offshore Structures Congress (ISSC’94), St. John’s, Canada, 1994, Vol. 2, 313-324. 

53.              Mavrakos, S.A., Chatjigeorgiou, J., “Dynamics of mooring lines for deep water applications”, Proceedings, 2nd International Symposium on Computational Structures Technology (CST’94), CIVIL - COMP Ltd Publ., Athens, Greece, 1994, 149-157.

54.              Mavrakos, S.A., Chatjigeorgiou, J., “Mooring-induced damping on floating structures”, Proceedings, 1st International Conference on Marine Industry (MARIND’ 96), Varna Bulgaria, 1996, Vol. II, 365-378.

55.              Chatjigeorgiou, J.K., Mavrakos, S.A., “Nonlinear contributions in the prediction of dynamic tension on mooring lines, for high and low frequencies of excitation”, Accepted for presentation, 7th International Symposium on Offshore and Polar Engineering (ISOPE’97), Honolulu, Hawaii, May 1997.

56.              Chatjigeorgiou, J.K., Mavrakos, S.A., “Dynamic tension variation along steel mooring lines with attached submerged buoys”, Proceedings, 6th International Maritime Association of Mediterranean (IMAM), Istanbul, Turkey, Nov. 1997.

57.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Assessment of Bottom Cable Interaction Effects on Mooring Line Dynamics”, Proceedings, 17th International Conference on Offshore Mechanics and Arctic Engineering (OMAE’ 98), Lisbon, 1998, Paper No. 98-355.

58.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Systematic Evaluation of the Mooring Line Induced Damping on Floating Structures”, Proceedings, 5th National Symposium on Theoretical and Applied Mechanics, Ioannina, Greece, Sept. 1998.

59.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Comparison of Numerical Methods for Predicting the Dynamic Behavior of Mooring Lines”, Proceedings, 9th International Symposium on Offshore and Polar Engineering (ISOPE’99), Brest, France, 1999, Vol. II, 332-339.

60.              Chatjigeorgiou, É.Ê., Mavrakos, S.A., “Dynamic Behaviour of a Hanged Cable for Deep Water Applications”, Proceedings, 6th National Congress on Mechanics, HSTAM, Thessaloniki, Greece, 2001, Vol. I, 408-415.

61.              Chatjigeorgiou, É.Ê., Mavrakos, S.A., “A Solution to the 2-D Bending Vibration Problem of a Vertical Marine Riser”, Proceedings, International         Maritime Association of the Mediterranean Conference (IMAM2002), Paper No. 131, Crete, Greece 2002.

62.              Chatjigeorgiou, É.Ê., Mavrakos, S.A., “An investigation of the non-linear     transverse vibrations of parametrically excited vertical marine risers and cables under tension” Proceedings, 21st International Conf on Offshore Mechanics and Arctic Eng, OMAE 2002, Oslo, Norway, 2002, Paper No 28170.

63.              Mavrakos, S.A., “Recent development in the mooring lines analysis methods”, Proceedings, 15th International Ship and Offshore Structures Congress (ISSC’94), San Diego, U.S.A., 2003. 

64.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Higher order restoring forces for the design of multi-leg mooring arrangements”, Proceedings, 8th International Marine Design Conference (IMDC 2003), Athens, Greece, 2003, Vol. II, pp. 343 - 352.

65.              Chatjigeorgiou, É.Ê., Georgakopoulos, C.G. and Mavrakos, S.A., “Non-linear Dynamics of Vertical Risers under Parametric and Lateral Excitation and Effect of Internal Flow”, Proceedings, 3rd International Conf on Hydroelasticity in Marine Technology, 51-61 Oxford, England, 2003.

66.              Chatjigeorgiou, É.Ê., and Mavrakos, S.A. “Coupled internal resonances of a two-degree of freedom system subjected to weak parametric excitation: Application for vertical slender structures”, Proceedings, HSTAM 2004 Conference, Vol. II, 301-309, Chania, Crete.

67.              Chatjigeorgiou, I.K., Xiros, N.I. and Mavrakos, S.A. “Coupling Contributions and Effect of Mathieu Instabilities in the Dynamic Behaviour of Vertical Elastic Cables and Risers”, Proceedings, WSEAS Multiconference, IASME, Corfu, Greece, 2004.

68.              Chatjigeorgiou, I.K., Thanos, I., Bourma, P., Mazarakos, Th. and Mavrakos, S.A. “Mooring System and Motion Response Analysis of a Gas Import Floating Terminal in Operating and Survival Conditions”, Proceedings, 25th International Conference on Offshore Mechanics and Arctic Engineering (OMAE2006), Hamburg, 4 – 9 June 2006, Germany.

69.              Chatjigeorgiou, I.K., Mavrakos, S.A., “Heave Induced out-of-plane motions on catenary risers”, Proceedings, 13th International Congress of the International Maritime Association of the Mediterranean (IMAM 2009), October 2009, Istanbul, Turkey.

 

9.2.4    Publications related to the design of underwater oceanographic vehicles

 

70.         Bourma, P., Thanos, I., Mavrakos, S.A. “Research and Development of an autonomous underwater glider: Modeling, Design and Control”, Proceedings, 1st International Workshop on Underwater Vehicles, March 2009, National Center for Marine Research, Anavissos, Greece. 

 

9.3       Books – Chapter in Books

 

1.                  Êokkinowrachos, K., Asorakos, S., Mavrakos, S. A., “Belastungen und Bewegungen grossvolumiger Seebauwerke durch Wellen”, West-deutscher Verlag, Opladen, Germany, 1980, ISBN 3-531-02905-3.

2.                  Mavrakos, S.A., Spyrou, K. (Eds): Proceedings of the 10th International Congress of the Maritime Association of the Mediterranean, I.M.A.M. 2002.

3.                  Mavrakos, S.A., Bernitsas, M. (Eds) : Proceedings of the 24th Interanational Conference on Offshore Mechanics and Arctic Engineering (OMAE2005), Halkidiki, June 2005, Greece.

4.                  Mavrakos, S.A.: “Installations for the marine resources exploitation” (in Greek), Greek Educational Cyclopedia, Technology and Computer Sciences, Publishing Company “Ekdotiki Athinon”, Athens, Vol. 19 (9), 140 – 142.

5.                  Mavrakos, S.A.: “Floating Infrastructures” (in Greek), Greek Educational Cyclopedia, Technology and Computer Sciences, Publishing Company “Ekdotiki Athinon”, Athens.

6.                  Chatjigeorgiou, I.K., Mavrakos, S.A., “The 3D nonlinear dynamics of catenary slender structures for marine applications”, IN-TECH Publisher, Vienna, Austria, ISBN 978-953-7619-X-X (in press)

 

9.4       Citations

 

Using the http://scholar.google.com, http://www.scopus.com citation indexes, as well as published proceedings of several conferences and congresses, following citations per my own publication have been found. The numbering has been kept the same as in the chapter 9 of the present CV (Prefix A for the publications in international journals, Prefix B for the publications in referred international Congresses, etc.). 

 

Publication Á.1 (4 citations)

J. Wu, P. L.-F. Liu: “Interactions of obliquely incident water waves with two vertical obstacles”, Applied Ocean Research, 1988, 10(2), 66 – 73.

J.A. Sioris, C.D. Memos: “Response of a floating annulus to water waves”, Marine Structures, 1989, 12(1), 41 – 66.

S.W. Sheng, Y.G. You, Y.J. Ma: “Hydrodynamic analysis and optimal design of a wave energy device”, Ocean Engineering (Haiyang Gongcheng), 2006, 24(3), 107-112.

R. K. Sykes, A. W. Lewis & G. P. Thomas: “A Physical and Numerical Study of a Fixed Cylindrical OWC of Finite Wall Thickness”, Proceedings, 7th European Wave and Tidal Energy Conference, Porto, Portugal, September 2007.

 

Publication Á.2 (2 citations)

Williams, A.N., Li, W.: “The hydrodynamics of floating compound cylinders”, Journal of Offshore Mechanics and Arctic Engineering 121 (4), pp. 213-218, 1999.

Grosenbaugh, M.A.: “On the dynamics of oceanographic surface moorings”, Ocean Engineering 23 (1), pp. 7-25, 1996.

 

Publication Á.3 (10 citations)

R.W. Yeung, S.H. Sphaier: “Wave-interference effects on a truncated cylinder in a channel”, Journal of Engineering Mathematics 1989, 23(2), 95 – 117.

A.N. Williams, A.G. Abul – Azm, S.A. Ghalayini: “A comparison of complete and approximate solution for second – order diffraction loads on arrays of vertical circular cylinders”, Ocean Engineering, 1990, 17(5), 427 – 445.

D.V. Evans, R. Porter: “Near-trapping of waves by circular arrays of vertical cylinders”, Journal Applied Ocean Research, 1997, 19, 83-99   

G.R. Chen, M.C. Fang: “Hydrodynamic interactions between two ships advancing in waves”, Ocean Engineering, 2001 28(8), 1053 - 1078 

MC Fang, GR Chen The relative motion and wave elevation between two floating structures in waves, Proceedings, 11th International Offshore and Polar Engineering Conference (ISOPE’2001), 361-368, 2001.

C.M. Linton, P. McIver: Handbook of Mathematical Techniques for Wave / Structure Interactions, Chapman & Hall/CRC, London, New York, Washington, D.C., 2001

M.C. Fang, G.R. Chen: “The relative motion and wave elevation between two ships advancing in waves”, International Shipbuilding Progress, 2002, 49(3), 177 – 194 

H. Yang, X. Ruan, Y. Yan: PWM control of a four-leg three-phase inverter, Journal of Nanjing University of Aeronautics & Astronautics, 2002, 34(6), 575 – 579.

J. Wu: Wave Diffraction by a Vertical Cylinder with a Porous Ring Plate
ASCE - Journal of Engineering Mechanics, 2002.

C.Z, Wang, G.X. Wu: “Simulations of interactions between nonlinear waves and multi or an array of cylinders”, Journal of Hydrodynamics, Ser. B, 2006, 18(3), Supplement 1, 127 – 133.

Publication Á.4 (1 citation)

J.A. Sioris, C.D. Memos: “Response of a floating annulus to water waves”, Marine Structures, 1989, 12(1), 41 – 66.

 

Publication Á.5 (1 citation)

R. Zhao, O.M. Faltinsen: “Interaction between current, waves and marine structures”, Proceedings, Numerical Ship Hydrodynamic Symposium, 1989.

 

Publication Á.6 (5 citations)

Wang, J., Causal, S.M., Qiu, W.:   “Interactions between vertical structures in waves”, Proceedings, International Conference on Offshore Mechanics and Arctic Engineering (OMAE2005), Chalkidiki, Greece, OMAE2005-67539, 2005, pp. 875-883

Hu, X., Shen, Y., Liu, X., Fu, R., Zi, J., Jiang, X., Feng, S. Band structures and band gaps of liquid surface waves propagating through an infinite array of cylinders”, Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 68 (32), art. no. 037301, 2003, pp. 373011-373014

Justino, P.A.P., Falcão, A.F.D.O. :”Hydrodynamic interactions for small arrays of wave energy devices”, Proceedings, International Conference on Offshore Mechanics and Arctic Engineering - OMAE 2002, 2002, Oslo, Norway, pp. 827-834.

C.M. Linton, P. McIver: Handbook of Mathematical Techniques for Wave / Structure Interactions, Chapman & Hall/CRC, London, New York, Washington, D.C., 2001

Sayer, P.: “Hydrodynamic forces on ROVs near the air-sea interface”, International Journal of Offshore and Polar Engineering, 1996, 6 (3), pp. 177-183.

Publication Á.7 (2 citations)

S.A. Sannasiraj, R. Sundaravadivelu, V. Sundar: “Diffraction–radiation of multiple floating structures in directional waves”, Ocean Engineering, 2001, 28(2), 201 – 234.

W.S. Hong: “Analytical Solution of Waves Acting on A Floating Structure”, Master Thesis, Hydraulics and Ocean Engineering Department, Harbin University, 2003.

Publication Á.8 (5 citations)

R.W. Yeung, R.K.M. Seah: On Helmholtz and higher – order resonance of twin floating bodies, Journal of Engineering Mathematics, 2007, 58 (1-4), 251 – 265.

O.M. Faltinsen, O.F. Rognebakke, A.N. Timokha: “Two-dimensional resonant piston-like sloshing in a moonpool”, Journal of Fluid Mechanics, 2007, 575, 359 – 397.

R.K.M. Seah, R.W. Yeung: “Symmetric Resonant Modes between Twin Bodies”, Proceedings, 21st International Workshop on Water Waves and Floating
Bodies, Loughborough, England, April 2-5, 2006.

D. Elwood, Al Schacher, K. Rhinefrank, J. Prudell, S. Yim, E. Amon, T. Brekken, A. Von Jouanne: “Numerical Modeling and Ocean Testing of a direct – drive wave energy device utilizing a permanent magnet linear generator for power take – off”, Proceedings, 28th Int. Conf. on Ocean, Offshore and Arctic Engng. (OMAE2009), Paper No: OMAE2009-79146, 2009, Honolulu, Hawaii, USA.

S.J. Beatty, C. Hiles, R.S. Nicoll: “Design Synthesis of a Wave Energy Converter”, Proceedings, 28th Int. Conf. on Ocean, Offshore and Arctic Engng. (OMAE2009), Paper No: OMAE2009-79450, 2009, Honolulu, Hawaii, USA.

Publication Á.10 (1 citation)

S.S. Mirzaie, M.J. Ketabdari: “Estimation of wave forces on large compliant platforms”, Journal of Ocean University of China, 8(2), 2009, 121-126.  

Publication Á.14 (4 citations)

Child, B.F.M., Venugopal, V.: “Optimal configurations of wave energy device arrays”, Ocean Engineering 37 (16), pp. 1402-1417, 2010

Beels, C., Troch, P., De backer, G., Vantorre, M., De Rouck, J.: “Numerical implementation and sensitivity analysis of a wave energy converter in a time-dependent mild-slope equation model”, Coastal Engineering 57 (5), pp. 471-492,  2010.

P. Ricci, J.B. Saulnier, António F. de O. Falcão: Point-absorber arrays: a configuration study off the Portuguese West-Coast, Proceedings, 7th European Wave and Tidal Energy Conference, Porto, Portugal, September 2007.

Wang, J., Causal, S.M., Qiu, W.:   “Interactions between vertical structures in waves”, Proceedings, International Conference on Offshore Mechanics and Arctic Engineering (OMAE2005), Chalkidiki, Greece, OMAE2005-67539, 2005, pp. 875-883

Publication Á.15 (15 citations)

A. Clément, P. McCullen, A. Falcăo, A. Fiorentino, etc.: “Wave energy in Europe: current status and perspectives”, Renewable and Sustainable Energy Reviews, 2002, 6(5), 405-431.

J.N. Newman: “Wave Effects on Multiple Bodies”, Hydrodynamics in Ship and Ocean Engineering, ed. M. Kashiwagi, RIAM, Kyushu University, pp. 3 – 26.  

A.F. de O. Falcão:  Wave-power absorption by a periodic linear array of oscillating water columns, Ocean Engineering, 2002, 29(10), 1163 – 1186.  

G. Thomas: The Theory behind the Conversion of Ocean Wave Energy: a Review, Chapter in book Ocean Wave Energy, Springer Verlag, Book Series: Green Energy and Technology.

P. Ricci, J.B. Saulnier, António F. de O. Falcão: Point-absorber arrays: a configuration study off the Portuguese West-Coast, Proceedings, 7th European Wave and Tidal Energy Conference, Porto, Portugal, September 2007.

ISSC 2006: Committee Report on Ocean Wind and Wave Energy Utilization, Proceedings, 16th International Ship and Offshore Structures Congress, 20 – 25 August 2006, Southampton, U.K.

V.Venugopal, G.H.Smith: “Wave climate investigation for an array of wave power devices”, Proceedings, 7th European Wave and Tidal Energy Conference, Porto, Portugal, September 2007.

C. Fitzgerald, G. Thomas: “A preliminary study on the optimal formation of an array of wave power devices”, Proceedings, 7th European Wave and Tidal Energy Conference, Porto, Portugal, September 2007.

Stallard, T., Stansby, P.K., Williamson, A.J.: «An experimental study of closely spaced point absorber arrays Proceedings of the International Offshore and Polar Engineering Conference», pp. 417-424, 2008.

Folley, M., Whittaker, T.J.T.: “The effect of sub-optimal control and the spectral wave climate on the performance of wave energy converter arrays”, Applied Ocean Research 31 (4), pp. 260-266, 2009.

Garnaud, X., Mei, C.C.: “Bragg scattering and wave-power extraction by an array of small buoys”, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 466 (2113), pp. 79-106, 2010.

Pogson, M.A., Whittaker, D.M., Gehring, G.A., Huges, R.J., S. Angus, J.A., Cox, T.J.: “Multiple scattering between cylinders and a Schroeder diffuser”, Acta Acustica united with Acustica 96 (2), pp. 292-299, 2010.

Falcao, A.F.d.O.: “Wave energy utilization: A review of technologies”, Renewable and Sustainable Energy Reviews 14 (3), pp. 899-918, 2010.

Beels, C., Troch, R., De Backer, G., Vantorre, M., De Rouck, J.: “Numerical implementation and sensitivity analysis of a wave energy converter in a time-dependent mild-slope equation model”, Coastal Engineering 57 (5), pp. 471-492, 2010.

Babarit, A.: “Impact of long separating distances on the energy production of two interacting wave energy converters”, Ocean Engineering 37 (8-9), pp. 718-729, 2010.

Publication Á.17 (22 citations)

S. Huang: “Stability analysis of the heave motion of marine cable-body systems”, Ocean Engineering, 26(6), 1999, 531-546

M.S. Triantafyllou: “Dynamics of Cables, Towing Cables and Mooring Systems”, The Shock and Vibration Digest, 23(7), 1991, 3-7.

Perngjin F. Pai and Ali H. Nayfeht: “Fully Nonlinear Model of Cables”, AIAA Journal 1992, 30(12), 2993-2996.  

C.H. Jenkins, J.W. Leonard, J.S. Walton, E.B. Carpenter: “Experimental investigation of moored-buoys using advanced video techniques”, Ocean Engineering, 22(4), 1995, 317-335.

B.L. Newberry, N.C. Perkins: “Asymptotic Analysis of a Tension Resonance Mechanism in Submerged Cables”, Nonlinear Dynamics and Controls: Presented at the 1996 ASME Annual Meeting, Michigan

W.K. Chang, V. Pilipchuk, R.A. Ibrahim: “Fluid Flow-Induced Nonlinear Vibration of Suspended Cables”, Journal of Nonlinear Dynamics, 1997, 14(4), 377-406

R.H. Plaut, J.C. Archilla, T.W. Mays: “Snap Loads in Mooring Lines during Large Three-Dimensional Motions of a Cylinder, Journal of Nonlinear Dynamics, 2000, 23(3), 271 - 284 

ITTC (2000): The Specialist Committee Report on Deep Water Mooring.

N. Kitney, D.T. Brown: “Experimental Investigation of Mooring Line Loading Using Large and Small-Scale Models”, Journal of Offshore Mechanics and Arctic Engineering, 2001 123, pp. 1

Hu, H.Y., Jin, D.P.: “Non-linear dynamics of a suspended travelling cable subject to transverse fluid excitation”, Journal of Sound and Vibration 239 (3), pp. 515-519,     2001

K.N. Cho, W.S. Yi: “Development of a dynamic analysis scheme of cable for ROV operation”, Proceedings 12th International Offshore and Polar Engineering Conference, Kyushu; Japan; 26-31 May 2002, 249-254.

D. Dessi, A. Carcaterra, G. Diodati: “Experimental investigation versus numerical simulation of the dynamic response of a moored floating structure to waves”, Proceedings of the Institution of Mechanical Engineers, Journal of Engineering for the Maritime Environment, 2004, 218(3), 153 – 165.   

R.A. Ibrahim: “Nonlinear vibrations of suspended cables—Part III: Random excitation and interaction with fluid flow”, Applied Mechanics Reviews, 2004.

Jordan, M.A., Beltran-Aguedo, R.: “Nonlinear identification of mooring lines in dynamic operation of floating structures”, Ocean Engineering 31 (3-4), pp. 455-482, 2004.

V. Johansen, S. Ersdal, A.J. Sřrensen, B. Leira:Modelling of inextensible cable dynamics with experiments”, International Journal of Non-Linear Mechanics, 2006

V. Johansen: “Modelling of flexible slender systems for real-time simulation and control applications”, PhD Thesis, Norwegian University of Science and Technology Faculty of Engineering Science. 2007.

M.A. Jordán, J.L. Bustamante:  “Numerical stability analysis and control of umbilical–ROV systems in one-degree-of-freedom taut–slack condition”, Journal of Nonlinear Dynamics, 2007, 49(1-2), 163 – 191

Tang, Y.-G., Zhang, S.-X., Zhang, R.-Y., Liu, H.-X.: «Development of study on the dynamic characteristics of deep water mooring system  Journal of Marine Science and Application», 6 (3), 2007, pp. 17-23

Johanning, L., Smith, G.H., Wolfram, J.: «Measurements of static and dynamic mooring line damping and their importance for floating WEC devices  Ocean Engineering» 34 (14-15), 2007, pp. 1918-1934

Johanning, L., Smith, G.H., Bullen, C.: «Large scale mooring line experiments and comparison with a fully dynamic simulation program with importance to WEC installation», Proceedings of the International Offshore and Polar Engineering Conference, 2007, pp. 455-462

Johanning, L., Smith, G.H.: «Improved measurement technologies for floating wave energy converter (WEC) mooring arrangements», Underwater Technology 27 (4), 2008, pp. 175-184

Hodges, D.H.: «Erratum: Geometrically Exact, Intrinsic Theory for Dynamics of Curved and Twisted Anisotropic Beams  AIAA», Journal 47 (5), 2009, pp. 1308-1309

Publication Á.18 (14 citations)

Jordán, M.A., Bustamante, J.L.: «Guidance of underwater vehicles with cable tug perturbations under fixed and adaptive control systems», IEEE Journal of Oceanic Engineering 33 (4), 2008, pp. 579-598

Johanning, L., Smith, G.H.: «Improved measurement technologies for floating wave energy converter (WEC) mooring arrangements», Underwater Technology 27 (4), 2008, pp. 175-184

Subbaiah, A.V., Sundaravadivelu, R., Subramanian, A.A. (2007), Analysis of coupled hull-cold water pipe mooring for offshore desalination plant, Proc 26th Int Conf on Offshore Mechanics and Arctic Engineering, San Diego, CA, USA, June 10-15, OMAE 29203

Jordan, M.A., Bustamante, J.L. (2007), Oscillation control in teleoperated underwater vehicles subject to cable perturbations, Proc of the 46th IEEE Conference on Decision and Control, New Orleans, LA, USA, Dec. 12-14, 3561-3566

Yu, L, Tan, J-H (2006), Numerical investigation of seabed interaction in time domain analysis of mooring cables, Journal of hydrodynamics, 18, 424-430

Jordan, M.A., Bustamante, J.L. (2006), Chaotic oscillations in dynamic positioning of teleoperated underwater vehicles subject to wave and current perturbations.

Yu, L, Tan, J-H (2005): Nonlinear analysis of seabed interaction and mooring cable dynamics with a finite element approach, Proc. 15th Int Offshore and Polar Eng Conf, 173-178

Ibrahim R.A. (2004): “Nonlinear vibrations of suspended cables- Part III: Random excitation and interaction with fluid flow, Applied Mechanics Rev, ASME, 57(6), 515-549.

Jordan, M.A., Beltran-Aguedo, R. (2004), Nonlinear identification of mooring lines in dynamic operation of floating structures, Ocean Engineering, 31, 455-482

Xiao, Y., Wang, Y. (2003), Analysis of deepwater mooring system for a semi-submerged drilling platform, Deepwater mooring systems concepts, design analysis, and materials 216-226

Ong, P.P.A., Pellegrino, S. (2003), Modelling of seabed interaction in frequency domain analysis of mooring cables. Proc. 22nd International Conference on Offshore Mechanics and Arctic Engineering, June 8-13, Cancun, Mexico, ASME, OMAE2003-37465

Raman-Nair W, Baddour RE (2002), Three-dimensional coupled dynamics of a buoy and multiple mooring lines: Formulation and algorithm, Quarterly Journal of Mechanics and Applied Mathematics 55, 179 - 207 Part 2.

Smith RJ, MacFarlane CJ (2001), Statics of a three component mooring line, Ocean Engineering 28, 899-914

Garza-Rios L.O., Bernitsas MM, Nishimoto K, et al. (2000), Dynamics of spread mooring systems with hybrid mooring lines, Journal of Offshore Mechanics and Arctic Engineering 122, 274-281.

Publication Á.19 (2 citations)

A.Sarkar, R. Eatock Taylor: “Dynamics of mooring cables in random seas, Journal of Fluids and Structures, 2002, 16(2), 193-212

JI Gobat: “Reducing mechanical and flow-induced noise in the surface suspended acoustic receiver”, Master Thesis, Department of Ocean Engineering, Massachusetts Institute of Technology, 1997    

 

Publication Á.20 (4 citations)

Jordan, M.A., Beltran-Aguedo, R. (2004), Nonlinear identification of mooring lines in dynamic operation of floating structures, Ocean Engineering, 31, 455-482

Xiao, Y., Wang, Y. (2003), Analysis of deepwater mooring system for a semi-submerged drilling platform, Deepwater mooring systems concepts, design analysis, and materials, 216-226

Jin D.P., Hu H.Y. (2001), Stretch and rotation of a suspended cable subject to transverse fluid excitation, Applied Mathematics and Mechanics – in English 22(8), 940-946

Hu H.Y., Jin D.P. (2001), Non-linear dynamics of a suspended travelling cable subject to transverse fluid excitation, Journal of Sound and Vibration 239, 515-529.

 

Publication Á.21 (13 citations)

Chen, F.: “Kuroshio power plant development plan”, Renewable and Sustainable Energy Reviews 14 (9), pp. 2655-2668,  2010.

 

Zhu, Z.H.: “Dynamic modelling of cable system using a new nodal position finite element method”, International Journal for Numerical Methods in Biomedical Engineering 26 (6), pp. 692-704, 2010. 

 

Fitzgerald, J., Bergdahl, L.: «Including moorings in the assessment of a generic offshore wave energy converter: A frequency domain approach», Marine Structures 21 (1), 2008, pp. 23-46

 

Lie, H., Gao, Z., Moan, T.¨: «Mooring line damping estimation by a simplified dynamic model», Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE 1, 2007, pp. 197-204


Johanning, L., Smith, G.H., Wolfram, J.: «Measurements of static and dynamic mooring line damping and their importance for floating WEC devices»,  Ocean Engineering 34 (14-15), 2007, pp. 1918-1934

 

Low, Y.M., Langley, R.S.: «Dynamic analysis of a flexible hanging riser in the time and frequency domain», Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE 2006, 2006

 

Johanning, L., Smith, G.H., Wolfram, J.: «Interaction between mooring line damping and response frequency as a result of stiffness alteration in surge»,  Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE 2006, 2006

 

Han, S., Grosenbaugh, M.: «Modelling of seabed interaction of oceanographic moorings in the frequency domain», Journal of Waterway, Port, Coastal and Ocean Engineering 132 (6), 2006, pp. 450-456

 

Han, S., Grosenbaugh, M.: «Modelling of seabed interaction of oceanographic moorings in the frequency domain»,  Proceedings of the International Conference on Civil Engineering in the Oceans VI, 2006,pp. 396-407

 

Hamilton, J., Kitney, N.: «An alternative mooring line damping methodology for deep water», Proceedings of the International Offshore and Polar Engineering Conference, 2004, pp. 156-163

 

Nie, M., Wang, X., Wang, X., Zhang, L. : «Time domain approach for computing the mooring force of a mooring system subject to wind, waves and currents», Qinghua Daxue Xuebao / Journal of Tsinghua University 44 (9), 2004, pp. 1214-1217


Ong, P.P.A., Pellegrino, S.: «Modelling of seabed interaction in frequency domain analysis of mooring cables»,  Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE 1, 2003, pp. 663-672


Nielsen, F.G.: «Comparative study on airgap under floating platforms and run-up along platform columns», Marine Structures 16 (2), 2003, pp. 97-134

 

Publication Á.22 (1 citation)

Jordan, M.A., Beltran-Aguedo, R. (2003), Nonlinear identification of mooring lines in dynamic operation of floating structures. Ocean Engineering, 31, 455-482

 

Publication Á.23 (2 citations)

Temarel, P. (2007), Loads on ships and offshore structures. Proc 26th Int. Conf Offshore Mechanics and Arctic Engineering, San Diego, CA, USA, OMAE2007-29768.

M.A. Jorddan: “Nonlinear parametric identification of mooring lines in dynamic operation”, Nonlinear Control Systems 2004: A Proceedings Volume from 6th IFAC Symposium, 2005, Stuttgart, Germany.

 

Publication Á.24 (6 citations)

Li, X., Guo, H., Meng, F.: “Stress analysis of top tensioned riser under random waves and vessel motions”, Journal of Ocean University of China 9 (3), pp. 251-256,  2010

 

Xu, W.-H., Zeng, X.-H., Wu, Y.-X., Liu, J.-Y. : “Hill instability analysis of TLP tether subjected to combined platform surge and heave motions, China Ocean Engineering 22 (4), pp. 533-546, 2008

 

Zeng, X., Xu, W., Li, X., Wu, Y. Nonlinear dynamic responses of the tensioned tether under parametric excitations, Proceedings, International Offshore and Polar Engineering Conference, pp. 78-83, 2008.

 

Kuiper, G.L., Brugmans, J., Metrikine, A.V. (2008) Destabilization of deep water risers by a heaving platform, Journal of Sound and Vibration, 310, 541-577.

Chandrasekaran, S., Chandak, N.R. Gupta Anupam, Stability Analysis of TLP tethers (2006), Ocean Engineering, 22, 471-482.

Khan, R.A., Ahmad, S. (2006), Nonlinear dynamics of deep water marine risers, 2nd Int Congress on Computational Mechanics and Simulation, Indian Institute of Technology, Guawhati, India

Publication Á.25 (2 citations)

Kuiper, G.L., Brugmans, J., Metrikine, A.V. (2008) Destabilization of deep water risers by a heaving platform, Journal of Sound and Vibration, 310, 541-577

ISCC COMMITTEE V.2 (2006), Floating Production Systems, Southampton, England

Publication Á.26 (7 citations)

G.L. Kuiper, J. Brugmans, A.V. Metrikine:  Destabilization of deep-water risers by a heaving platform, Journal of Sound and Vibration, 2008, 310(3), 541 – 557.

 

Xu, W.-H., Zeng, X.-H., Wu, Y.-X., Liu, J.-Y. : “Hill instability analysis of TLP tether subjected to combined platform surge and heave motions, China Ocean Engineering 22 (4), pp. 533-546, 2008

 

Zeng, X., Xu, W., Li, X., Wu, Y. Nonlinear dynamic responses of the tensioned tether under parametric excitations, Proceedings, International Offshore and Polar Engineering Conference, pp. 78-83, 2008 

 

Leklong, J., Chucheepsakul, S., Kaewunruen, S.: Dynamic responses of marine risers/pipes transporting fluid subject to top end excitations  Proceedings of the 8th 2008 ISOPE Pacific/Asia Offshore Mechanics Symposium, pp. 105-112, 2008

 

Yang, H.-Z., Li, H.-J. Vibration analysis of deep-sea risers under parametric excitations, Zhendong yu Chongji/Journal of Vibration and Shock  28 (9), pp. 65-69+78, 2009

 

Yang, H.-Z., Li, H.-J. Instability assessment of deep-sea risers under parametric excitation, China Ocean Engineering 23 (4), pp. 603-612, 2009.

 

Ibrahim, R.A. Overview of mechanics of pipes conveying fluids-part I: Fundamental studies, Journal of Pressure Vessel Technology, Transactions of the ASME 132 (3), pp. 0340011-03400132, 2010.

 

Publication Â.4 (2 citations)

ITTC (1990): Report of the Ocean Engineering Committee.  

A. Papanikolaou, D. Spanos: “Nonlinear Time Domain Simulation of the Motions of Floating Bodies in Waves”, Proceedings, 13th International Offshore and Polar Engineering Conference (ISOPE2003), Hawaii, 2003, 571-577

Publication Â.9 (1 citation)

Sayer, P.: “Hydrodynamic forces on ROVs near the air-sea interface”, International Journal of Offshore and Polar Engineering, 1996, 6 (3), pp. 177-183.

Publication Â.14 (1 citation)

Park, R.-S., Kwak, S.-H.: “A Basic Study on Semi-Porous Vertical Cylinder Type Floating Breakwaters”, Proceedings, 13th International Offshore and Polar Engineering Conference (ISOPE2003), Hawaii, 2003, pp. 1968-1975.

 

Publication Â.17 (1 citation)

Molin, B. Remy, F. Kimmoun, O., Jamois E. (2005), The role of tertiary wave interactions in wave-body problems, Journal of Fluid Mechanics, 528, 323-354.

Publication Â.18 (1 citation)

Eriksson, M., Isberg, J., Leijon, M. (2006), Theory and experiment on an elastically moored cylindrical buoy, IEEE Journal of Oceanic Engineering, 31, 959-963.

Publication Â.35 (1 citation)

M. Molinas , O.Skjervheim, B. Sørby, P. Andreasen, S. Lundberg, T. Undeland: “Power Smoothing by Aggregation of Wave Energy Converters for Minimizing Electrical Energy Storage Requirements”, Proceedings, 7th European Wave and Tidal Energy Conference, Porto, Portugal, September 2007.

Publication Â.43 (3 citations)

M.S. Triantafyllou: “Dynamics of Cables, Towing Cables and Mooring Systems”, The Shock and Vibration Digest, 23(7), 1991, 3-7.

R.A. Ibrahim: “Nonlinear vibrations of suspended cables—Part III: Random excitation and interaction with fluid flow”, Applied Mechanics Reviews, 2005.

ITTC (2000): The Specialist Committee Report on Deep Water Mooring.

Publication Â.44 (2 citations)

M.S. Triantafyllou: “Dynamics of Cables, Towing Cables and Mooring Systems”, The Shock and Vibration Digest, 23(7), 1991, 3-7.

R.A. Ibrahim: “Nonlinear vibrations of suspended cables—Part III: Random excitation and interaction with fluid flow”, Applied Mechanics Reviews, 2005.

Publication Â.45 (3 citations)

M.S. Triantafyllou: “Dynamics of Cables, Towing Cables and Mooring Systems”, The Shock and Vibration Digest, 23(7), 1991, 3-7.

R.A. Ibrahim: “Nonlinear vibrations of suspended cables—Part III: Random excitation and interaction with fluid flow”, Applied Mechanics Reviews, 2005.

N. Kitney, D.T. Brown: “Experimental Investigation of Mooring Line Loading Using Large and Small-Scale Models”, Journal of Offshore Mechanics and Arctic Engineering, 2001, 123, 1-9.

 

Publication Â.46 (1 citation)

R.A. Ibrahim: “Nonlinear vibrations of suspended cables—Part III: Random excitation and interaction with fluid flow”, Applied Mechanics Reviews, 2004, 57 (1-6), 515 - 549.

Publication Â.50 (2 Citations)

Gehle. R.W., Masri, S.F. (1998), Tracking the multi-component motion of a cable using a television camera. Smart Material Structures 7, 43-51.

Gehle. R.W., Masri, S.F. (1998), Active control of shallow, slack cable using the parametric control of end tension, Nonlinear Dynamics, 17, 77-94.

Publication Â.52 (1 Citation)

ITTC (2002): The Specialist Committee on Deep Water Mooring, Final Report and Recommendations to the 22nd ITTC.

Publication Â.54 (9 Citations)

Chai, Y.T., Varvani, K.S. (2006), An absolute coordinate formulation for three-dimensional flexible pipe analysis, Ocean Engineering, 33, 23-58

Han, S., Grosenbaugh, M.A. (2006), Modeling of seabed interaction of oceanographic moorings in the frequency domain , Proc. Int Conf on Civil Engineering in the Oceans, VI, 396-407

Zambrano, T., MacCready, T., Kiceniuk, T., Roddier, D.G., Cermelli, C.A. (2006), Dynamic modelling of deepwater offshore wind turbine structures in gulf of Mexico storm conditions, Proc., 25th Int Conf Offshore Mechanics and Arctic Engineering (OMAE 2006), Hamburg, Germany, Paper No 92029.

Han, S., Grosenbaugh, M.A. (2006), Modeling of seabed interaction of oceanographic moorings in the frequency domain, Journal of Waterway, Port, Coastal and Ocean Engineering 132, 450-456

Cermelli, C.A., Roddier, D.G., Busso, C.C. (2004), MINIFLOAT: A novel concept of minimal platform for marginal field development, Proc. 14th Int Offshore and Polar Eng Conf (ISOPE 2004), Toulon, France, paper JSC 186, 538-545

Ong, P.P.A., Pellegrino, S. (2003), Modelling of seabed interaction in frequency domain analysis of mooring cables. Proc. 22nd International Conference on Offshore Mechanics and Arctic Engineering, June 8-13, Cancun, Mexico, ASME, OMAE2003-37465.

Gobat, J.I., Grosenbaugh, M.A. (2001), Dynamics in the touchdown region of catenary moorings, Int. Journal of Offshore and Polar Engineering, 1, 273-281.

Shukai, W. (1999), Investigation into three mooring line – seabed interaction models for frequency domain mooring line dynamic analysis, Proc. 9th Int Offshore and Polar Engineering Conf, (ISOPE 1999), Brest, France, Vol. II, 320-325.

C. Cermelli, D. Roddier: “WINDFLOT: A floating foundation for offshore winf turbines, Part II: Hydrodynamic Analysis”, Proceedings,  Proceedings, 28th Int. Conf. on Ocean, Offshore and Arctic Engng. (OMAE2009), Paper No: OMAE2009-79231, 2009, Honolulu, Hawaii, USA.

Publication Â.56 (4 Citations)

Gobat, J.I., Grosenbaugh, M.A. (2006), Time domain numerical simulation of ocean cable structures, Ocean Engineering, 33, 1373-1400

Gobat J.I., Grosenbaugh, M.A., Triantafyllou, M.S. (2002), Generalized-alpha time integration solutions for hanging chain dynamics, Journal of Engineering Mechanics-ASCE 128, 677-687

Gobat, J.I., Grosenbaugh, M.A. (2001), Application of the generalized-alpha method to the time integration of the cable dynamics equations, Computer Methods in Applied Mechanics and Engineering 190, 4817-4829.

Gobat, J.I. (2000), The Dynamics of Geometrically Compliant Mooring Systems, PhD Thesis, MIT, WHOI. 

Publication Â.62 (2 Citations)

Senjanovic, I., Ljustina, A.M., Parunov, J. (2006), Analytical procedure for natural vibration analysis of tensioned risers, International Shipbuilding Progress 53, 155-182.

Senjanovic, I., Ljustina, A.M., Parunov, J. (2006), Natural vibration analysis of tensioned risers by segmentation method, Oil & Gas Science and Technology-Rev.IFP, 61, 647-659.

 

9.4       University textbooks

 

1.      Mavrakos, S.A.: «Hydrodynamic Analysis of Floating Structures» (in Greek), School of Naval Architecture and Marine Engineering, National Technical University of Athens, 437 pages, 2003. 

2.      Mavrakos, S.A: «Dynamics of Marine Structures», (in Greek), School of Naval Architecture and Marine Engineering, National Technical University of Athens, 194 pages, 2000. 

3.      Mavrakos, S.A., Chatjigeorgiou, I.K.: «Design of mooring systems for floating structures» (in Greek), School of Naval Architecture and Marine Engineering, National Technical University of Athens, 190 pages, 2000. 

4.      Mavrakos, S.A.: “Environmental Conditions and Loading on Marine Structures” (in Greek), Post-Graduate Course on Marine and Ocean Technology and Science, School of Naval Architecture and Marine Engineering, National Technical University of Athens, 224 pages, 2001.

5.      Mavrakos, S.A.: «Hydroelastic response of marine structures» (in Greek), Post-Graduate Course on Marine and Ocean Technology and Science, School of Naval Architecture and Marine Engineering, National Technical University of Athens, 78 pages, 2001.

6.      Mavrakos, S.A.: “Basics in the Floating Structures Design” (in Greek), Notes, Educational Seminar on Ocean Engineering organized by the Greek Chamber of Engineers and the Greek Association of Chartered Naval Architects, Athens, December 1987.  

7.      Mavrakos, S.A.: “Design environmental conditions and Wave Loads on Offshore Structures”(in Greek), Notes, Educational Seminar on Oil Platforms and other Marine Structures made of Reinforced Concrete, Laboratory of Reinforced Concrete, School of Civil Engineering, National Technical University of Athens, Athens 1988, 66 pages.

8.      Mavrakos, S.A.: “Mooring Systems”(in Greek), Notes, Educational Seminar on Ocean Engineering organized by the Greek Chamber of Engineers and the Greek Association of Chartered Naval Architects, Athens, November 1989.

9.      Mavrakos, S.A.: “Introduction to the Offshore Structures” (in Greek), University Notes for the Lecture “Introduction to Naval Architecture and Ocean Engineering”,  School of Naval Architecture and Marine Engineering, National Technical University of Athens, Athens, 1994

10.  Mavrakos, S.A. “Small Craft Ports and Marinas”, WEGEMT Association Twenty Fifth School on Small Craft Technology, Athens, October, 1997.

11.  Mavrakos, S.A. “Deep Water Moorings: Arrangement, Configuration, Behaviour and Evaluation”, WEGEMT Association Twenty Fourth School on Surface Support of Subsea Activities, Glasgow, March 1998.

 

9.5       Publications in National and International Workshops, Newspapers

 

  1.  Mavrakos, S.A. “Analysis of Loads and Motions of Moored Ships in Harbors” (in            Greek), Proceedings, 3rd National Congress of Harbor Works, Athens, 2003, 539 - 557.
  2. Kladas, A., Koulakoglou, S., Lemonis, G., Mavrakos, S.A., Katsaounis, G., Stasinopoulos, A., Chatjilakos, K. “Demonstrative Electricity Production Installation powered by sea waves” (in Greek), 3rd National Conference on the Application of Renewable Energy Technologies: Perspectives and Priorities towards to 2010,  2005, Athens, Greece 
  3. Mavrakos, S.A., Katsaounis, G., Chatjigeorgiou, I.K.: “Performance evaluation of moored WEC’s exposed to the action of first- and second-order wave loading” (in Greek), PYTHAGORAS, Symposium on the Scientific Research at National Technical University of Athens, July 2007, Plomati, Lesvos, Greece.
  4. Chatjigeorgiou, I.K., Mavrakos, S.A., Mazarakos, Th.: Hydrodynamic loading on a bottom seated, free – surface piercing vertical cylinder under the combined action of surface gravity waves and marine current”(in Greek), PYTHAGORAS, Symposium on the Scientific Research at National Technical University of Athens, July 2007, Plomati, Lesvos, Greece.
  5. Mavrakos, S.A., Spyrou, K., Tzabiras, G., Thanos, I., Mazarakos, Th., Tzamtzis, S. “Towing of large ships through the Corinth Cannel” (in Greek), Annual Symposium on Marine Technology, Greek Institute on Marine Technology, Piraeus, November 2007.
  6. Bourma, P.D., Thanos, I.F., Mavrakos, S.A., “Quality control protocol for an autonomous underwater glider”, Proceedings (Poster Session), IMDIS Conference, 2008, Athens, Greece.
  7. Mavrakos, S.A.: «Systems for Ocean Energy Exploitation» (in Greek), ECOFORUM, Athens, 2008.
  8. Mavrakos, S.A: «The future is in the sea» (in Greek), Newspaper Real News, Real Planet, 29/11/2009.
  9. Mavrakos, S.A., Chatjigeorgiou, I.K, Mazarakos, Th., Konispoliatris, D.: “Experimental and numerical investigation of the hydrodynamic loads and wave elevation on concentric vertical cylinders”, Proceedings Joint User Meeting, HYDRALAB III EU project, Hannover, Feb. 2010, Germany.
  10. Pessoa, J., Fonseca, N., Guedes Soares, C., Le Boullec, M., Ohana J., Mavrakos, S., Mazarakos, Th., Jensen, B., Kirkegaard, J.: “Experimental study of the slowly varying wave exciting drift forces on a body of simple geometry”, Proceedings Joint User Meeting, HYDRALAB III EU project, Hannover, Feb. 2010, Germany.

 

9.6       Technical Reports 

 

1.                  Kokkinowrachos, K., Asorakos, S., Grallert, M., Mavrakos, S.: “Bericht ueber die theoretische and experimentelle Untersuchung des Seeverhaltens eines schwimmenden LNG-Speichers” (in German), Final report the the German Company Dyckerhoff & Widmann A.G., Jan. 1976.

2.                  Kokkinowrachos, K., Mavrakos, S.: “Nichtlineare Fluessigkeits-bewegungen innerhalb teilgefuellter rotations-symmetrischer Behaelter mit vertikaler Achse” (in German), Final Report to the German Ministry for Research and Technology from Ocean Engineering Devision, RWTH-Aachen, 1982. 

3.                  Loukakis, T., Mavrakos, S.A., Athanassoulis, G., Politis, G.: “Hydrodynamic Analysis of Semi-Submersibles” (in Greek), Final report to the Greek Ministry for Research and Technology from the Department of Naval Architecture and Marine Engineering, National Technical University of Athens, Jan. 1986.

4.                  Mavrakos, S., Papazoglou, V.J. and Triantafyllou, M.S.: “Feasibility Study for Deep Water Anchoring Systems”, Series of three Interim Reports and Final Report to the Hydrocarbon Division, Energy Directorate, C.E.C. from N.T.U.A., Project No. TH06027/86, July 1987, January 1988, July 1988 and February 1989.

5.                  Spyridakis, M., Asorakos, S., Mavrakos, S., Papazoglou, V. and Trezos, K.: “Specifications for the Design of Floating Marinas-Phase A” (in Greek), Technical Report to the Hellenic Tourist Organization from MAR.TE.DEC. S.A. and N.T.U.A., March 1989.

6.                  Brando, P., Mavrakos, S., Papazoglou, V. and Triantafyllou, M.: “Use of Buoys to Reduce Static and Dynamic Tension in Deep Water Mooring Lines : A Pilot Study”, Series of three Interim Reports and Final Report to the Hydrocarbon Division, Energy Directorate, C.E.C., Project No. TH 06046/88, July 1989, February 1990, August 1990 and April 1991.

7.                  Mavrakos, S.A., Asorakos, S., Papazoglou, V.J. and Loukakis, T.A.: “Feasibility Study for the Development of Floating Swimming Pools” (in Greek), Final Technical Report to Touliel S.A., November 1991.

8.                  Papazoglou, V.J., Mavrakos, S.A. and Triantafyllou, M.S.: “Deep Water Subsea System Servicing through the Surface : A Technology Transfer”, 1st Technical Progress Report to the Energy Directorate, C.E.C., Department of Naval Architecture and Marine Engineering, January 1992.

9.                  Papazoglou, V.J., Mavrakos, S.A. and Triatafyllou, M.S.: “Deep Water Subsea System Servicing through the Surface: A Technology Transfer”, 2nd Technical Progress Report to the Energy Directorate, C.E.C., Department of Naval Architecture and Marine Engineering, July 1992.

10.              Papazoglou, V.J., Mavrakos, S.A. and Triantafyllou, M.S.: “Deep Water Subsea System Servicing through the Surface: A Technology Transfer”, 3rd Technical Progress Report to the Energy Directorate, C.E.C., Department of Naval Architecture and Marine Engineering, July 1993.

11.              Mavrakos, S.A.: “Feasibility study for the Perama Ship repair area: Description and evaluation of the excising problems. Influence of the Perama Ship repair activities to the environmental conditions of the broader area” (in Greek), Supported by the Prefecture of Attika, Dec. 1993.

12.              Mavrakos, S.A., Asorakos, S., Papazoglou, V.J. and Loukakis, T.A.: “Development and Design of a New Concept for Open Sea Fish Farming” (in Greek), Final Technical Report to THALASSA S.A., Department of Naval Architecture and Marine Engineering, January 1994.

13.              Papazoglou, V.J. Mavrakos, S.A., Triantafyllou, M.S. and Hover, F.S.: “Deep Water Subsea System Servicing Through the Surface: A technology Transfer”, Final Technical Report to the Energy Directorate, C.E.C., Department of Naval Architecture and Marine Engineering, May 1994.

14.              Mavrakos, S.A.: “Mooring system design for a pipe-laying ship operating between Igoumenitsa-Corfu” (in Greek), Final Technical Report to FULGOR S.A., Department of Naval Architecture and Marine Engineering, May 1994.

15.              Mavrakos, S.A.: “Mooring system design for a pipe-laying ship operating between Preveza-Corfu” (in Greek), Final Technical Report to FULGOR S.A., Department of Naval Architecture and Marine Engineering, Febr. 1995.

16.              McIver, P., Mavrakos, S.A., Singh, G.: “Wave-power absorption by arrays of devices”, Part of the Final Technical Report for the project Offshore Wave Energy Converters (OWEC-1), submitted to the General Directorate for Research and Development, JOULE Program, C.E.C., Project No. Jou2-CT93-0394, Sept. 1995.

17.              Mavrakos, S.A., Triantafyllou, M.S., Peponis, V., Chatjigeorgiou, J.: “Mooring System design for three floating Navy docks: Phase A-Preliminary design” (in Greek), First Technical Report to the Greek Navy from the Department of Naval Architecture and Marine Engineering, N.T.U.A., Nov. 1995.

18.              Mavrakos, S.A., Loukakis, T., Grigoropoulos, Gr., Chatjigeorgiou, J.: “Experimental and Numerical Investigation of the Hydrodynamic Behavior of Floating Breakwaters” (in Greek), Interim Report to the Greek General Secretariat for Research and Technology from the Department of Naval Architecture and Marine Engineering, N.T.U.A., Nov. 1995.

19.              Mavrakos, S.A., Chatzigeorgiou, J.: “Wind and Current forces on several types of ships”(in Greek), 1st Interim Report for the Research Project : Optimization of the design procedures for harbor works; Application to the Harbors of Alexandroupoli, Lagos and Kavala, Department of Naval Archtecture and Marine Engineering, N.T.U.A., June 1996.

20.              Mavrakos, S.A., Tsouvalis, N., Chatjigeorgiou, J., Peponis, V., Triantafyllou, M.S.: “Mooring System design for three floating Navy docks: Phase A- Final Preliminary design” (in Greek), Final Technical Report to the Greek Navy, Department of Naval Architecture and Marine Engineering, N.T.U.A., Nov. 1996.

21.              Mavrakos, S.A., Loukakis, T., Grigoropoulos, Gr., Chatjigeorgiou, J.: “Experimental and Numerical Investigation of the Hydrodynamic Behavior of Floating Breakwaters” (in Greek), Final Technical Report to the Greek General Secretariat for Research and Technology from the Department of Naval Architecture and Marine Engineering, N.T.U.A., Jan. 1998.

22.              Mavrakos, S.A., Chatjigeorgiou, I.K.: “Motions of moored ships in harbors”, 4th Interim Report to the Greek General Secretariat for Research and Technology for the Research Project: Optimization of the design procedures for harbor works; Application to the Harbors of Alexandroupoli, Lagos and Kavala, Department of Naval Architecture and Marine Engineering, N.T.U.A., January 1999.

23.              Mavrakos, S.A., Chatjigeorgiou, I.K.: “Application of the method for evaluating motions of moored ships in harbors to the case of Kavala and Alexandoupolis harbors”, 5th Interim and Final Report to the Greek General Secretariat for Research and Technology for the Research Project: Optimization of the design procedures for harbor works; Application to the Harbors of Alexandroupoli, Lagos and Kavala, Department of Naval Architecture and Marine Engineering, N.T.U.A., January 1999.

24.              Mavrakos, S.A.: “Development of software for the calculation of the mean wind and current loads on ships and systematic evaluation of the mean drift forces on arrangements of floating marinas (in Greek)”, 1st Technical Report to the Greek General Secretariat for Research and Technology for the research project PAVE (contract: 97BE142), Department of Naval Architecture and Marine Engineering, NTUA, June 2000.

25.              Ìavrakos, S.A.: «Hydrodynamic Analysis of the floating offshore structure for the deployment of the instrumentation of the Laboratory NESTOR for neutrino monitoring”, Technical Report (in Greek), Department of Naval Architecture and Marine Engineering, NTUA, April 2001.

26.              Mavrakos, S.A. and Chatjigeorgiou, J: «Evaluation of the drag forces during the transportation and the operating phases of the floating offshore structure for the deployment of the instrumentation of the Laboratory NESTOR for neutrino monitoring”, Technical Report (in Greek), Department of Naval Architecture and Marine Engineering, NTUA, June 2001.

27.              Mavrakos, S.A.: «Hydrodynamic analysis for the change in use of the Jack-up “ANDROS” with a concrete caisson on it”, Technical Report (in Greek) to the construction Company ATHENA S.A., Department of Naval Architecture and Marine Engineering, NTUA, April 2001.

28.              Mavrakos, S.A., Katsaounis, G.M. and Holmes, B.: “Sea States Definition and Modeling”, Deliverable D1, Technical Report for the Research Project LABBUOY supported by the EU, Contract No ENK6 – CT2001 – 00500, Department of Naval Architecture and Marine Engineering, NTUA, December 2002.

29.              Mavrakos, S.A., Katsaounis, G.M., Nielsen, K., Lemonis, G., Chatjigeorgiou, I. K.: “Mechanical Systems Modeling”, Deliverable D2, Technical Report for the Research Project LABBUOY supported by the EU, Contract No ENK6 – CT2001 – 00500, Department of Naval Architecture and Marine Engineering, NTUA, December 2002.

30.              K. Nielsen, W. Beattie R. Alcorn, G.M.  Katsaounis and S.A. Mavrakos: «Ïptimum configurations of physical scale model for representative sea states under consideration”, Deliverable D4, Technical Report for the Research Project LABBUOY supported by the EU, Contract No ENK6 – CT2001 – 00500, Department of Naval Architecture and Marine Engineering, NTUA, March 2003.

31.              Mavrakos, S.A., Katsaounis, G.: “Calculation of extreme environmental loads on an array of wave energy converters”, Technical Report (in Greek) on the framework of the research project: “Construction of a demonstration plant for the electricity production from the waves” supported by the Greek General Secretariat for Research and Technology, PAVET 00ÂÅ142, Department of Naval Architecture and Marine Engineering, NTUA, March 2003.

32.              Mavrakos, S.A., Georgatzis, A., Katsaounis, G.: “Hydrodynamic analysis of an array of floating wave energy converters”, Technical Report (in Greek) on the framework of the research project: “Construction of a demonstration plant for the electricity production from the waves” supported by the Greek General Secretariat for Research and Technology, PAVET 00ÂÅ142, Department of Naval Architecture and Marine Engineering, NTUA, April 2003.

33.              S.A. Mavrakos, G. Katsaounis, M. Giakoumis, G. Lemonis, K. Nielsen, W. Beattie, R. Alcorn, A. Stasinopoulos: “Scale Model Experiments”, Deliverable D7, Technical Report for the Research Project LABBUOY supported by the EU, Contract No ENK6 – CT2001 – 00500, Department of Naval Architecture and Marine Engineering, NTUA, September 2003.

34.              S.A.Mavrakos, G. Katsaounis, G. Lemonis: “Validation of simulation models”, Deliverable D8, Technical Report for the Research Project LABBUOY supported by the EU, Contract No ENK6 – CT2001 – 00500, Department of Naval Architecture and Marine Engineering, NTUA, December 2003.

35.              S.A. Mavrakos, G. Katsaounis: “Hydrodynamic Analysis and Efficiency Evaluation of a tightly moored wave energy converter”, Technical Report to the KIMATIKI ENERGEIA S.A., School o f Naval Architecture and Marine Engineering, September 2004.

36.              S. A. Mavrakos, P. Bourma, I. Thanos : “Mean Wind and Current Loads on GIFT terminal and its assembly with  LNGC, Report no: 65-1873-NTM-G-TR-300, Technical Report for the Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, Nov. 2005.

37.              S.A. Mavrakos, P. Bourma, I. Thanos : “ Spectra of slowly-varying excitation environmental forces (wind and wave), Report no: N° 65-1873-NTM-N-RE-309, Technical Report for the Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, Dec. 2005.

38.              S.A. Mavrakos, I. Thanos, Th. Mazarakos: “Hydrodynamics of GIFT Assembly (first-order)”, Report no: N° 65-1873-NTM-N-TR-305, Technical Report for the Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, Dec. 2005.

39.              S.A. Mavrakos, M.S. Triantafyllou, I. Thanos, Th. Mazarakos: “Thruster Loads Preliminary Estimate”, Report no: N° 65-1873-NTM-N-CN-301, Technical Report for the Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, Jul. 2005.

40.              S.A. Mavrakos, M.S. Triantafyllou: “Equivalent Transfer function representing control system action”, Report no: N° 65-1873-NTM-M-RE-308, Technical Report for the Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, Dec. 2005.

41.              S.A. Mavrakos, J. Chatjigeorgiou: “Preliminary Estimate of the Scale-down model for GIFT’s Mooring System”, Report no: N° 65-1873-NTM-N-CN-302, Technical Report for the Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, Jul. 2005.

42.              S.A. Mavrakos, J. Chatjigeorgiou: “Static and Dynamic Analysis of GIFT’s mooring arrangement under survival conditions”, Report no: N° 65-1873-NTM-N-CN-303, Technical Report for the Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, Dec. 2005.

43.              S.A. Mavrakos, J. Chatjigeorgiou: “Quasi-Static Motion Response Analysis of the Moored GIFT Terminal in Survival Conditions – First Comparisons with Experimental Data”, Report no: N° 65-1873-NTM-N-RE-300, Technical Report for the Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, Dec. 2006.

44.              S.A. Mavrakos, J. Chatjigeorgiou: “Mooring Line Induced Damping and Bottom – Line Interaction Effects for the Moored GIFT Terminal”, Report no: N° 65-1873-NTM-N-CN-305, Technical Report for the Research Project GIFT supported by the EU, Contarct No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, Jan. 2006.

45.              S.A. Mavrakos, I. Thanos, S. Tsiloukas, Th. Grapsas: “The Floating GIFT Terminal as a coupled dynamical system – Preliminary calculations”, Report no: N° 65-1873-NTM-M-RE-304, Technical Report for the Research Project GIFT supported by the EU, Contarct No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, March 2006.

46.              S.A. Mavrakos, I. Thanos, P. Bourma: “Spectra of slowly-varying excitation environmental loads (wind, waves), Report”, Report no: N° 65-1873-NTM-N-RE-309, Technical Report for the Research Project GIFT supported by the EU, Contarct No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, March 2006.

47.              Mavrakos, S.A.: “Investigation of the Seaworthiness of a floating Wind Farm using suitable materials due to extreme environmental conditions”, Interim evaluation report submitted to the WEGEMT for the program VISIONS (2006). Contract N°VL1C18-I10EF3.1, September 2006.

48.              Mavrakos, S.A.: “Investigation of the Seaworthiness of a floating Wind Farm using suitable materials due to extreme environmental conditions”, Final evaluation report submitted to the WEGEMT for the program VISIONS (2006). Contract N°VL1C18 - I10EF3.1, November 2006.

49.              Mavrakos, S.A.: “Investigation of the in-situ modularization and connection possibilities of the wind farm modulus and their transport to the assembly location”, Interim evaluation report submitted to the WEGEMT for the program VISIONS (2006). Contract N°VL1C19-I10EF3.2, September 2006.

50.              Mavrakos, S.A.: “Investigation of the in-situ modularization and connection possibilities of the wind farm modulus and their transport to the assembly location”, Final evaluation report submitted to the WEGEMT for the program VISIONS (2006). Contract N°VL1C19-I10EF3.2, December 2006.

51.              Mavrakos, S.A., Thanos, I., Bourma, P., “Mean Second Order Wave Loads on GIFT Assembly in Sea Waves” Report no: N° 65-1873-NTM-N-TR-307, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, July 2006.

52.              Chatjigeorgiou, I.K., Mavrakos, S.A. “Static and Dynamic Analysis, Mooring Line Induced Damping, Bottom Line Interaction Effects”,  Report 65-1873-NTM-N-TR-312, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, January 2007.

53.              Mavrakos, S.A., Grapsas, Th., Vasiliades, V.: “De-coupled Motion response Analysis in the Frequency Domain, Mooring Line Loads”,  Report 65-1873-NTM-N-TR-313, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, March 2007.

54.              Mavrakos, S.A., Grapsas, Th., Thanos, I., Ioannides, M.:First order motions of the moored floating terminal (RAO’s, Spectra, significant, maximum values), Report 65-1873-NTM-N-RE-301, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, February, 2007.

55.              Mavrakos, S.A., Chatjigeorgiou, I.K., Bourma, P., Mazarakos, Th., Vasiliades, V., Ioannides, M.: “Low frequency motions and damping components: motion’s amplitudes, significant, and maximum values, Report. 65-1873-NTM-N-RE-302, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, January, 2007.

56.              Mavrakos, S.A., Chatjigeorgiou, I.K., Mazarakos, Th., Bourma, P., Vasiliades, V., Grapsas, Th.:Dynamic analysis of mooring lines in maximum excursion (mean + first order + low frequency)”, Report 65-1873-NTM-N-RE-303, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, March 2007.

57.              Mavrakos, S.A., Thanos, I., Vasiliades, V.: “Coupled Hydro - mechanic Response Analysis in the Time Domain of the Moored LNG terminal: Vessels’ Motions, Line Tensions”,  Report 65-1873-NTM-N-TR-314, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, March 2007.

58.              Mavrakos, S.A., Thanos, I, Bourma, P., Tranoudis, G., Christidoulou, K., Maroglou, D.: “Time domain simulations; calculation of motions and line tensions in operating and survival conditions – Comparison between frequency and time domain numerical predictions”, Report 65-1873-NTM-N-RE-306, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, January 2007.

59.              Mavrakos, S.A., Thanos, I, Grapsas, Th. Christodoulou, K.: “Estimation of transversal Thruster’s Power”, Report 65-1873-NTM-N-TR-315, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, January 2007.

60.              Mavrakos, S.A., Thanos, I., Grapsas, Th., Maroglou, D., Triantafyllou, M.S.: “Derivation of output spectrum, including effect of mooring system, power estimation”, Report 65-1873-NTM-M-RE-311, Report 65-1873-NTM-N-TR-315, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, December 2006.

61.              Mavrakos, S.A., Papanikolaou, A., Thanos, I., Spanos, D., Mourkoyiannis, D., Mazarakos, Th., Bourma, P., Grapsas, Th., Vasiliades, V., Ioannides, M., Christodoulou, K., Argyropoulos, M.: ‘Analysis of experimental data and validation of simulations from model test results, Report 65 – 1873 – NTM – N – TR – 318, Research Project GIFT supported by the EU, Contract No TST4-CT-2004-12404, School of Naval Architecture and Marine Engineering, Division of Marine Structures, NTUA-NTM, March 2006.

62.              Mavrakos, S.A.: “Parametric evaluation of the flow field and of the collision energy on the side walls of the Corinth channel during the towing procedure of large cruisers” (in Greek), Technical Report to the “DIORYGA KORINTHOU S.A.”, Laboratory for Floating Structures and Mooring Systems, NTUA, October, 2006.   

63.              Mavrakos, S.A.: “Interrelations between vessels and their behaviour in wind and waves”, Interim evaluation report submitted to the WEGEMT for the program VISIONS (2007), Contract No VL2C22-I40EF5.2, August 2007.

64.              Mavrakos, S.A.: “Interrelations between vessels and their behaviour in wind and waves”, Final evaluation report submitted to the WEGEMT for the program VISIONS (2007), Contract No VL2C22-I40EF5.2, September 2007.

65.              Mavrakos, S.A.: “Coupling of dynamically positioned large modular structures”, Interim evaluation report submitted to the WEGEMT for the program VISIONS (2007), Contract No VL2C03-I40EF2.1, September 2007.

66.              Mavrakos, S.A.: “Coupling of dynamically positioned large modular structures”, Final evaluation report submitted to the WEGEMT for the program VISIONS (2007), Contract No VL2C03-I40EF2.1, October 2007.

67.              Mavrakos, S.A.: «Wave propagation and motion response analysis of large Cruiser ships berthed in the new Katakolo Harbor” (in Greek), Supported by the Prefecture of Western Greece, Technical Report, Laboratory for Floating Structures and Mooring Systems, NTUA, June, 2007.

68.               Mavrakos, S.A., Chatjigeorgiou, J.: “«Floating Thermal Station and Anahita Island”, Final Evaluation Report submitted to the WEGEMT for the program VISIONS (2008), Contract No VL3C10-I0720EF5.1, September 2008.

69.              Mavrakos, S.A.: “Hydrodynamic analysis of the cable – laying vehicle “ATALANTI” (in Greek), Technical Report to the KREOUSA SHIPPING COMPANY Ltd., Laboratory for Floating Structures and Mooring Systems, NTUA, July 2009.  


10.  PARTICIPATION IN RESEARCH PROJECTS AND SERVICES

 

1.                  “Wave loads and motion characteristics of large offshore structures in waves”, sponsored by the Ministry for Science and Research of North Rhine-Westphalia, 1976-1979 (researcher).

2.                  “Optimization of large compact offshore structures in the design phase”, sponsored by the Ministry for Science and Research of North Rhine-Westphalia, 1978-1979 (researcher).

3.                  “Dynamic behavior of fluids confined in partially filled oscillating tanks”, sponsored by the German Ministry for Research and Technology, 1979-1982 (researcher).

4.                  “Hydrodynamic Analysis of Semi-Submersibles”, sponsored by the Greek Ministry for Research and Technology, 1984-1986 (co-principal investigator).

5.                  “Feasibility Study for Deep Water Anchoring Systems”, sponsored by the Hydrocarbon Division, Energy Directorate, EU, 1986-1988 (scientific responsible).

6.                  “Use of Buoys to Reduce Static and Dynamic Tension in Deep Water Mooring Lines: A Pilot Study”, sponsored by the Hydrocarbon Division, Energy Directorate, EU, 1988-1990 (scientific responsible).

7.                  “Design Rules for floating Marinas”, sponsored be the Hellenic Tourism Organization, 1989-1990 (scientific responsible).

8.                  “Deep Water Sub-sea System Servicing through the Surface: A Technology Transfer”, sponsored by the Energy Directorate (THERMIE Program), C.E.C., 1991-1994 (co-principal investigator).

9.                  “Development of a New concept for Open Sea Fish Farming”, consultant service sponsored by Thalassa S.A., 1991-1993 (scientific responsible).

10.              “Feasibility Study for the Development of Floating Swimming Pools”, consultant service sponsored by Touliel S.A., 1991-1992 (scientific responsible).

11.              “Experimental and numerical investigation on the hydrodynamic behavior of floating breakwaters”, sponsored by the Greek General Secretariat for Research and Technology, 1993-1995 (principal investigator).

12.              “Offshore Wave Energy Converters (OWEC-1)”, sponsored by the General Directorate for Research and Development, Program JOULE II, EU, 1993-1995 (principal investigator for the part carried out in NTUA).

13.              “Mooring system design for a pipe-laying vessel operating in the route Igoumenitsa-Corfu”, consultant service sponsored by the Greek Company FULGOR S.A., 1994 (scientific responsible).

14.              “Mooring system design for a pipe-laying vessel operating in the route Preveza-Corfu”, consultant service sponsored by the Greek Company FULGOR S.A., 1994 (scientific responsible).

15.              “Design of the Mooring System for three Floating Docks”, sponsored by the Greek Navy, 1995 (scientific responsible).

16.              “Optimization of the design procedures for harbor works: Application to the Harbors of Alexandroupoli, Lagos and Kavala”, sponsored by the Greek General Secretariat for Research and Technology, 1996-1998 (scientific responsible for the NTUA part).

17.              «Development of Rules and Regulations for the Design, Construction and Certification of Floating Marinas and Floating Recreational structures”, two-year (1999 – 2001) research project PAVET (97ÂÅ142) sponsored by the Hellenic Register of Shipping (Scientific responsible for the project part carried out at NTUA).

18.              «Design of floating offshore structure for the deployment of the instrumentation for the neutrino monitoring Laboratory NESTOR”, one-year project (2000), sponsored by the NESTOR Laboratory (scientific responsible).

19.              «Hydrodynamic analysis for the change in use of the Jack-up “ANDROS”, one-year project (2001) sponsored by the Greek construction company ATHENA S.A. (scientific responsible).

20.              «Development and Construction of a Prototype Electricity generation plant from sea waves”, two-years project (1/12/2001 – 30/11/2003) sponsored by the Greek General Secretariat for Research and Technology, carried out in collaboration with the Greek Construction Company ATHENA, S.A., The National Center for Renewable Energy and the Department of Electrical Engineering of the NTUA (scientific responsible for the work carried out in the Department of Naval Architecture and Marine Engineering).  

21.              «Thematic Network on Floating Structures TechnologyFLOATECH», four-year (1.7.2001 – 30.6.2005) research project sponsored by the Research General Direction of the E.U. in collaboration with 37 European institutions form the Academia and Industry (scientific responsible for the part carried out in the Department of Naval Architecture and Marine Engineering, NTUA).

22.              «Economically Efficient Floating Device for Wave Power Conversion into Electricity; Phase I: Mathematical and Physical Model Testing», Two-year (1/1/2002 – 30/11/2003), European Research Project, sponsored by the Direction General for Energy (scientific responsible for the part carried out in the Department of Naval Architecture and Marine Engineering, NTUA).

23.              “Preliminary design of a floating garage for the Volos Harbour”, consultant service sponsored by the Volos Harbour Authorities, 2003

24.              Measurements of drift forces, wave run-up and air gap on offshore structures”, Research Project sponsored by the European Commission in the framework of the “Transnational Access to Research Infrastructures”, carried out in the wave basin of EL PRADO MODEL BASIN (Canal de Experiencias Hidrodinamicas de El Prado, Madrid, Spain).

25.              Co-ordination action on Ocean Energy”, three-year (1.10.2004 – 30.9.2007) project, sponsored by the European Commission, Contract No: 502701. The program is carried out in collaboration of 40 European Institutions from the Academia, Industry and Developer, (scientific responsible for the part that is carried out in NTUA).  

26.               «Numerical Evaluation of the Efficiency of a tightly moored wave energy converter”, consultant Service to the company KIMATIKI ENERGEIA S.A., September 2004, (scientific responsible).

27.              Hydrodynamic and Hydroelastic Analysis of moored floating or constrained vertical axisymmetric bodies for applications as wave energy converters”, Three-year research project (1.3.2004 – 28.2.2006), sponsored by the Greek Ministry for Education, Program PYTHAGORAS (scientific responsible).

28.              Gas Import Floating TerminalGIFT”, Two-year research project (1.2.2005 – 31/1/2007), sponsored by the Direction for Transport, Project No: 012404, in collaboration with DORIS Engineering (France), LMC (UK), DnV (Norway), CAT(France), Ship Design Laboratory of the National Technical University of Athens (Greece), (scientific responsible of the NTUA-Marine Division Part). 

29.              Design of an autonomous underwater oceanographic monitoring vehicle droved by changing buoyancy”, Three-year project, sponsored by the Greek Secretariat for Research and Technology, PENED 2003 (scientific responsible).

30.              WaveCurrentVertical Cylinder Array interaction”, Two-year research project (1.1.2005 – 31.12.2006), sponsored by the Greek Ministry for Education, PYTHAGORAS II (principal investigator).

31.              "Investigation of the Seaworthiness of floating Wind Farm using suitable materials due to extreme environmental conditions", Consultant services to  WEGEMT (West European Graduate Education in Marine Technology) within the EU project VISIONS, Contract N°VL1C18 - I10EF3.1, 2006.

32.              Investigation of the in-situ modularization and connection possibilities of the wind farm modulus and their transport to the assembly location”, Consultant services to WEGEMT (West European Graduate Education in Marine Technology) within the EU project VISIONS, Contract N°VL1C19-I10EF3.2, 2006.

33.              “Parametric evaluation of the flow field and the collision energy on the side walls of the Corinth channel during the towing procedure of large cruisers”, sponsored by the CORINTH CHANNEL S.A.,2006, (scientific responsible). 

34.              Interrelations between vessels and their behaviour in wind and waves”, Consultant services to WEGEMT (West European Graduate Education in Marine Technology) within the EU project VISIONS, Contract No VL2C22-I40EF5.2, 2007.

35.              Coupling of dynamically positioned large modular structures”, Consultant services to WEGEMT (West European Graduate Education in Marine Technology) within the EU project VISIONS, Contract No VL2C03-I40EF2.1, 2007.

36.              «Wave propagation and motion response analysis of large Cruiser ships berthed in the new Katakolo Harbor, Prefecture of Ilia, Greece”, Consultant services sponsored by the Prefecture of Ilia, June, 2007.

37.              «Floating Thermal Station and Anahita Island”, Consultant services to  WEGEMT (West European Graduate Education in Marine Technology) within the EU project VISIONS, Contract No VL3C10-I0720EF5.1, 2008.

38.              “Measurements of hydrodynamic forces and motions on concentric vertical cylinders”, Sponsored by the EU within the 6th FP under the action:  “Integrated Infrastructure Initiative HYDRALAB III: Assess to major experimental facilities” carried out in the wave basin of EL PARDO, Madrid, Spain (Canal de Experiencias Hidrodinamicas de El Prado -CEHIPAR), principal investigator, Íovember 2009.

39.              “Wave current interaction with vertical cylinders”, Sponsored by the EU in the framework of METRI – 2 (Marine Environment Tests and Research Infrastructure 2) program, Contract Nr. HPRI-CT-2001-156. The experimental campaign was carried out in IFREMER, Brest, France, (scientific responsible), May 2009.

40.              “Experimental and numerical evaluation of the drift forces on a floating body of simple geometry (vertical cylinder)”, Sponsored by the EU within the 6th FP under the action:  “Integrated Infrastructure Initiative HYDRALAB III: Assess to major experimental facilities” carried out in DHI Wave Basin, Copenhagen, Denmark Contract No: 022441 (RII3), (Scientific responsible for the NTUA part), June 2009.

41.              “ÕäñïäõíáìéêÞ ÁíÜëõóç êáëùäéáêïý óêÜöïõò «ÁÔÁËÁÍÔÇ»”, ðñüãñáììá ðáñï÷Þò õðçñåóéþí ÷ñçìáôïäïôçèÝí áðü ôçí KREOUSA SHIPPING CO., LTD, (åðéóôçìïíéêüò õðåýèõíïò), Éïýëéïò  2009.

70.              “Hydrodynamic analysis of the cable – laying vehicle “ATALANTI”, Sponsored by the KREOUSSA Shipping Company, Ltd., July 2009.

42.              “Study of the maneuvering characteristics of a closed Ferry Boat vehicle during the approaching phase at the new harbor in Thasos Island”, on – going, sponsored by the Thasos Harbor Authorities (scientific responsible).


 

11.  DEVELOPED COMPUTER CODES

 

1.        CYLINDER-R: Solves the linearized diffraction – radiation problems of an arbitrarily shaped vertical axisymmetric body in the presence of regular surface waves. First – order exciting wave forces, hydrodynamic parameters, motions and mean – second order wave forces (3 DOF) are evaluated using momentum conservation principle.

2.        HAMVAB (Hydrodynamic Analysis of Multiple Vertical Axisymmetric Bodies): Solves the linearized diffraction-radiation problems for the interaction between waves and multiple vertical axisymmetric bodies of arbitrary shape that can be free-floating or moored. The first-order loads and motions and the mean drift-forces in 3 DOF (in the horizontal directions and the yaw motion) on the isolated and the entire structure configuration are calculated in monochromatic and irregular seas.

3.        CON-CYLINDER: Solves the linearized body – wave interaction problem (diffraction – radiation) between independently moving concentric vertical cylinders and planar linear wave trains. Exciting wave forces to the first – order, hydrodynamic coefficients and first – order motions are evaluated in the frequency domain.    

4.        HA.SINK: Solves the linearized diffraction-radiation problems for the interaction between surface gravity waves and arbitrarily shaped large-volume single or multiple bodies through the distribution of pulsating sink-sources on their wetted surface (John’s source). The first-order loads and motions and the mean drift-forces in 6 DOF are evaluated in monochromatic and natural waves.

5.    HA.SI.S: Solves the linearized diffraction-radiation problems for the interaction between waves and arbitrarily shaped large-volume single or multiple bodies through the distribution of the 1/r source on the body’s wetted surface, the free – surface, the sea – bottom and on a vertical control cylinder surrounding the body. The velocity potential outside of the vertical control cylinder is approximated by its analytical representation. First-order loads and motions and the mean drift-forces in 3 DOF (using momentum conservation principle) are evaluated in monochromatic and irregular seas. 

6.    FLOATSYS: Evaluation of the first- and mean-second order loads on semi-submersibles and arrangements of arbitrarily shaped interconnected moored structures using diffraction and Morison type loads. The motion response analysis is carried out in the frequency domain. Calculation of RAO’s of shear forces and forces at the interconnections. 

7.    RETARF: Based on the frequency – domain analysis results, the RETARF code calculate the retardation functions to be used in the time domain analysis code TIMESYS. 

8.    TIMESYS: Calculates the first- and mean- and slowly-varying loads on semi-submersibles and on interconnected moored floating bodies of small- or large-volume using both diffraction and Morison-Type loading. The equations of motions are solved in the time domain. Time histories of the body motions and of the tensions in the mooring lines can be calculated together with the forces at the connections, taken into account mooring induced damping on the floating structure.

9.    CYLINDER2: Solution of the sum- and difference diffraction problem to second – order on arbitrarily shaped vertical axisymmetric bodies. Second – order sum- and difference frequency exciting wave forces and moments are evaluated.  

10.  WINDCURR: Evaluation of mean wind and current loads on ships and offshore structures. 

11.  SLOSH: Evaluation of the eigenfrequencies and the dynamic loads on arbitrarily shaped vertical axisimmetric tanks due to sloshing of liquids.

12.  STATCABLE:  Static analysis of multi-leg spread mooring system in the 3D space. Each line can be made of wire, chain or synthetic material or of combination of them. The anchors can be at different water depths, whereas the lines can be accommodated with buoys or clams along them. The computer code calculates for given external forces on the moored structure, the final position of the lines, the maximum tensions along them, the suspended lines’ length, the linearized restoring coefficients, etc.

13.  FREQCABLE: Dynamic analysis of a single catenary mooring line consisting of chain, wire, synthetic materials or combination of them with submerged attached buoys. The equations of motion are solved in the frequency domain and the drag forces on the line are equivalently linearized. Dynamic tensions and motion components at the top of the line and at the buoys’ connections are calculated together with the linearized mooring-induced damping on the floating structure.

14.  TIMECABLE: 2D time-domain dynamic analysis of mooring lines with submerged attached buoys and combination of materials (chain, wire, synthetic mooring lines). Solution of the non-linear motion equations using finite differences methods. Calculation of the total tension and the motion components along the line. Exact formulation of the bottom-cable interaction.

15.  DESCABLE: Design of multi-leg mooring systems with submerged attached buoys and combination of materials. Evaluation of the required length, diameter and weight per length for given external forces and water depth.  

16.  XMOOR: Evaluation of the mean static equilibrium position of moored floating structures anchored through pre-tensioned synthetic lines and subjected to the action of mean loadings from waves, wind and currents. Evaluation of the lines’ elongations and maximum loads.