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Experimental and numerical study of the effects of heave plate on the motion of a new deep draft multi-spar platform

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Abstract

The heave motion of a floating structure is critical, as a favorable heave characteristic permits dry tree systems, amongst other benefits. The heave response can be suppressed by installing heave plates. However, the associated hydrodynamic effects, which include viscous damping and added mass, are very complicated. Moreover, there are limited experimental investigations to understand the heave plate effects on actual platform designs. This paper aims to study the abovementioned issue based on a novel deep draft multi-spar (DDMS) platform, for four different configurations (with/without upper and lower heave plates). A set of experiments (free decay, regular and irregular wave tests) are conducted, and compared with time domain and linearized frequency domain analyses. Amongst other things, the investigations and discussions include the added mass and damping coefficients for the platform and heave plates, comparison of experimental and numerical results, and the influence of the heave plates on the surge, heave and pitch motions.

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References

  1. Prislin I, Blevins R, Halkyard J (1998) Viscous damping and added mass of solid square plates. In: Proceedings of the 17th international conference on offshore mechanics and arctic engineering, Lisbon, Portugal, 5–6 July 1998

  2. Thiagarajan K, Troesch A (1998) Effects of appendages and small currents on the hydrodynamic heave damping of TLP Columns. J Offshore Mech Arctic Eng 120:37–42

    Article  Google Scholar 

  3. Lake M, He HP, Troesch A, Perlin M, Thiagarajan K (2000) Hydrodynamic coefficient estimation for TLP and Spar structures. J Offshore Mech Arctic Eng 122:118–124

    Article  Google Scholar 

  4. Holmes S, Bhat S, Beynet P, Sablok A, Prislin I (2001) Heave plate design with computational fluid dynamics. J Offshore Mech Arctic Eng 123:22–28

    Article  Google Scholar 

  5. Tao LB, Thiagarajan K (2003) Low KC flow regimes of oscillating sharp edges II. hydrodynamic forces. Appl Ocean Res 25:53–62

    Article  Google Scholar 

  6. Zhang F, Yang JM, Li RP, Chen G (2008) Coupling effects for cell-truss spar platform: comparison of frequency- and time-domain analysis with model test. J Hydrodyn 20:424–432

    Article  Google Scholar 

  7. Kurian V, Montasir O, Narayanan S (2009) Numerical and model test results for truss spar platform. In: Proceedings of the 19th international offshore and polar engineering conference, Osaka, Japan, 21–26 June 2009

  8. Downie M, Graham J, Hall C, Incecik A, Nygaard I (2000) An experimental investigation of motion control devices for truss spars. Mar Struct 13:75–90

    Article  Google Scholar 

  9. Tao LB, Dray D (2008) Hydrodynamic performance of solid and porous heave plates. Ocean Eng 35:1006–1014

    Article  Google Scholar 

  10. Halkyard J, Chao J, Abbott P, Dagleish J, Banon H, Thiagarajan K (2002) A deep draft semisubmersible with a retractable heave plate. In: Proceedings of the offshore technology conference, Houston, USA, 6–9 May 2002

  11. Srinivasan N, Chakrabarti S, Radha R (2006) Response analysis of a truss-pontoon semisubmersible with heave-plates. J Offshore Mech Arctic Eng 128:100–107

    Article  Google Scholar 

  12. Li BB, Ou JP, Teng B (2010) Fully coupled effects of hull, mooring and risers model in time domain based on an innovative deep draft multi-spar. China Ocean Eng 24:219–233

    Google Scholar 

  13. Shen B, Du H, Li G, Deng Z (2008) Study on untouched offshore platform measurement technique. Mar Sci Bull 27:68–75 (in chinese)

    Google Scholar 

  14. ANSYS Inc (2006) AQWA-LINE Manual

  15. Ran ZH, Kim M (1999) Coupled dynamic analysis of a moored spar in random waves and currents (time-domain versus frequency-domain analysis). J Offshore Mech Arctic Eng 121:194–200

    Article  Google Scholar 

  16. Sadeghi K, Incecik A, Downie M (2004) Response analysis of a truss spar in the frequency domain. J Mar Sci Technol 8:126–137

    Article  Google Scholar 

  17. Spanos P, Ghosh R, Finn L, Halkyard J (2005) Coupled analysis of a spar structure: monte carlo and statistical linearization solutions. J Offshore Mech Arctic Eng 127:11–16

    Article  Google Scholar 

  18. Roberts JB, Spanos PD (1990) Random vibration and statistical linearization. Wiley, London

  19. Gudmestad O, Connor J (1983) Linearization methods and the influence of current on the nonlinear hydrodynamic drag force. Appl Ocean Res 5:184–194

    Article  Google Scholar 

  20. Borgman L (1969) Ocean wave simulation for engineering design. J Waterw Harbors Div Am Soc Civ Eng 4:557–583

    Google Scholar 

  21. CMPT (1998) Floating structures: a guide for the design and analysis. Oilfield Publications Inc., USA

    Google Scholar 

  22. Low YM (2009) Frequency domain analysis of a tension leg platform with statistical linearization of the tendon restoring forces. Mar Struct 22:480–503

    Google Scholar 

  23. Cummins WE (1962) The impulse response function and ship motions. Schifistechnik 9:101–109

    Google Scholar 

  24. Aranha J (1994) A formula for “wave damping” in the drift of a floating body. J Fluid Mech 275:147–155

    Article  MathSciNet  MATH  Google Scholar 

  25. Trassoudaine D, Naciri M (1999) A comparison of a heuristic wave drift damping formula with experimental results. Appl Ocean Res 21:93–97

    Article  Google Scholar 

  26. Koo B, Kim M, Randall R (2004) Mathieu instability of a spar platform with mooring and risers. Ocean Eng 31:2173–2208

    Google Scholar 

  27. Faltinsen O (1990) Sea loads on ships and offshore structures. Cambridge University Press, Cambridge

    Google Scholar 

  28. Det Norske Veritas (2010) DNV-RP-C205

  29. Hoerner S (1965) Fluid-dynamic drag: information on aerodynamic drag and hydrodynamic resistance. Hoerner Fluid Dynamics, New Jersey

    Google Scholar 

  30. Atluri S, Magee A, Lambrakos K (2009) CFD as a design tool for hydrodynamic loading on offshore structures. In: Proceedings of the 28th international conference on offshore mechanics and arctic engineering, Honolulu, Hawaii, 31 May–5 June 2009

  31. Sarpkaya T, Isaacson M (1981) Mechanics of wave forces on offshore structures. Van Nostrand Reinhold, New York

    Google Scholar 

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Acknowledgments

The first author would like to thank Prof. Bin Teng at Dalian University of Technology for his kind help related to the model test. He also wishes to thank the Center for Deepwater Engineering, Dalian University of Technology for providing access to the AQWA Software. The second author acknowledges NTU-SUG 3/07 and MOE-Tier 1 RG7/7 for partial support to this work.

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Correspondence to Ying Min Low.

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Li, B., Huang, Z., Low, Y.M. et al. Experimental and numerical study of the effects of heave plate on the motion of a new deep draft multi-spar platform. J Mar Sci Technol 18, 229–246 (2013). https://doi.org/10.1007/s00773-012-0203-0

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  • DOI: https://doi.org/10.1007/s00773-012-0203-0

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