Ocean Systems Engineering

  • 제7권1호
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  • Pages.53-74
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  • 2017
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  • 2093-6702(pISSN)
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  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
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A comparative assessment of approximate methods to simulate second order roll motion of FPSOs

  • 투고 : 2015.12.26
  • 심사 : 2016.01.15
  • 발행 : 2017.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

Ship shaped FPSO (Floating Production, Storage and Offloading) units are the most commonly used floating production units to extract hydrocarbons from reservoirs under the seabed. These structures are usually much larger than general cargo ships and have their natural frequency outside the wave frequency range. This results in the response to first order wave forces acting on the hull to be negligible. However, second order difference frequency forces start to significantly impact the motions of the structure. When the difference frequency between wave components matches the roll natural frequency, the structure experiences a significant roll motion which is also termed as second order roll. This paper describes the theory and numerical implementation behind the calculation of second order forces and motions of any general floating structure subjected to waves. The numerical implementation is validated in zero speed case against the commercial code OrcaFlex. The paper also describes in detail the popular approximations used to simplify the computation of second order forces and provides a discussion on the limitations of each approximation.

키워드

과제정보

연구 과제 주관 기관 : Office of Naval Research (ONR)

참고문헌

  1. Chakrabarti, S. (2002), The theory and practice of hydrodynamics and vibration, World Scientific, Singapore.
  2. Chen, X.B. (2007), "Middle-field formulation for the computation of wave-drift loads", J. Eng. Math., 59(1), 61-82. https://doi.org/10.1007/s10665-006-9074-x
  3. Chen, X.b. and Rezende, F. (2009), "Efficient computations of second-order low-frequency wave load", Proceedings of the ASME 28th International Conference on Ocean, Offshore and Arctic Engineering Volume 1: Offshore Technology, 525-532, ASME, URL http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1622777.
  4. Duarte, T., Sarmento, A.J.N.A. and Jonkman, J.M. (2014), Effects of second-order hydrodynamic forces on floating offshore wind turbines, Technical Report April, National Renewable Energy Laboratory.
  5. Falzarano, J., Somayajula, A. and Seah, R. (2015), "An overview of the prediction methods for roll damping of ships", Ocean Syst. Eng., 5(2), 55-76. https://doi.org/10.12989/ose.2015.5.2.055
  6. Ferreira, M.D., Torres, F., Cueva, D., Ceppollina, D., Pinheiro, S., Jr, H.C. and Umeda, C. (2005), "Hydrodynamic aspects of the new build FPSOBR", 2nd International Conference on Applied Offshore Hydrodynamics, Rio de Janerio.
  7. Greenhow, M. (1986), "High-and low-frequency asymptotic consequences of the Kramers-Kronig relations", J. Eng. Math., 20, 293-306, https://doi.org/10.1007/BF00044607
  8. Guha, A. and Falzarano, J. (2015), "The effect of hull emergence angle on the near field formulation of added resistance", Ocean Eng., 105, 10-24. https://doi.org/10.1016/j.oceaneng.2015.06.012
  9. Guha, A., Somayajula, A. and Falzarano, J. (2016), "Time domain simulation of large amplitude motions in shallow water", 21st SNAME Offshore Symposium, February, Society of Naval Architects and Marine Engineers, Houston.
  10. Hauteclocque, G.D., Rezende, F., Waals, O. and Chen, X.B. (2012), "Review of approximations to evaluate second-order low-frequency load", Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, 1-9.
  11. Himeno, Y. (1981), Prediction of Ship Roll Damping-A State of the Art, Technical Report 239, The University of Michigan, Ann Arbor.
  12. Lee, C. (1995), WAMIT theory manual, Technical report, Massachusettes Institute of Technology, Cambridge, MA.
  13. Liu, Y. (2003), "On Second-Order Roll Motions of Ships", Proceedings of the ASME 2012 22nd International Conference on Offshore Mechanics and Arctic Engineering, 1-6, American Society of Mechanical Engineers, Cancun, Mexico.
  14. Matsumoto, F.T. and Simos, A.N. (2014), "Predicting the second order resonant roll motions of an FPSO", Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, 1-9, American Society of Mechanical Engineers, San Francisco, California, USA.
  15. Molin, B. (2002), Hydrodynamique des structures offshore, Editions Technip, Paris.
  16. Newman, J. (1974), "Second-order, slowly-varying forces on vessels in irregular waves", International Symposium on Dynamics of Marine Vehicle & Structures in Waves, 193-197, Mechanical Engineering Publications, London.
  17. Perez, T. and Fossen, T. (2008), "A derivation of high-frequency asymptotic values of 3d added mass and damping based on properties of the cummins' equation", J. Maritime Res., 5(1), 65-78.
  18. Pinkster, J.A. (1980), "Low frequency second order wave exciting forces on floating structures", Doctoral, Technische Universiteit Delft.
  19. Rezende, F. (2012), Non Linear Roll JIP, Technical report, Bureau Veritas, Rio de Janerio.
  20. Rezende, F., Chen, X.b.B. and Ferreira, M.D. (2008), "Simulation of second order roll motions of a FPSO", Proceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering - 2008, Vol 1, 355-361, American Society of Mechanical Engineers, Estoril, Portugal.
  21. Rezende, F.C. and Chen, X.B. (2010), "Approximation of second-order low-frequency wave loading in multi-directional waves", 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 3, 855-861, ASME.
  22. Somayajula, A. and Falzarano, J. (2015a), "Large-amplitude time-domain simulation tool for marine and offshore motion prediction", Marine Syst. Ocean Technol., 10(1), 1-17.
  23. Somayajula, A. and Falzarano, J. (2016a), "Critical assessment of reverse-MISO techniques for system identification of coupled roll motion of ships", J. Marine Sci. Technol., 1-19.
  24. Somayajula, A. and Falzarano, J. (2016b), "Estimation of Roll Motion Parameters using R-MISO System Identification Technique", eds., J.S. Chung, M. Muskulus, T. Kokkinis and A.M. Wang, 26th International Offshore and Polar Engineering (ISOPE 2016) Conference, Vol. 3, 568-574, International Society of Offshore and Polar Engineers (ISOPE), Rhodes (Rodos), Greece.
  25. Somayajula, A. and Falzarano, J.M. (2015b), "Validation of Volterra Series Approach for Modelling Parametric Rolling of Ships", Proceedings of ASME 2015 34th International Conferences on Ocean, Offshore and Arctic Engineering, American Society of Mechanical Engineers, St. John's, NL, Canada.
  26. Somayajula, A., Guha, A., Falzarano, J., Chun, H.H. and Jung, K.H. (2014), "Added resistance and parametric roll prediction as a design criteria for energy efficient ships", Int. J. Ocean Syst. Eng., 4(2), 117-136. https://doi.org/10.12989/ose.2014.4.2.117
  27. Somayajula, A.S. and Falzarano, J.M. (2016c), "A comparative assessment of simplified models for simulating parametric roll", J. Offshore Mech. Arctic Eng..

피인용 문헌

  1. Application of advanced system identification technique to extract roll damping from model tests in order to accurately predict roll motions vol.67, 2017, https://doi.org/10.1016/j.apor.2017.07.007
  2. Development of a Blended Time-Domain Program for Predicting the Motions of a Wave Energy Structure vol.8, pp.1, 2017, https://doi.org/10.3390/jmse8010001
  3. Application of system identification technique in efficient model test correlations for a floating power system vol.98, pp.None, 2017, https://doi.org/10.1016/j.apor.2020.102126