Structural Engineering and Mechanics

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Sloshing characteristics of an annular cylindrical tuned liquid damper for spar-type floating offshore wind turbine

  • Jeon, S.H. (School of Mechanical Engineering, Pusan National University) ;
  • Seo, M.W. (School of Mechanical Engineering, Pusan National University) ;
  • Cho, Y.U. (School of Mechanical Engineering, Pusan National University) ;
  • Park, W.G. (School of Mechanical Engineering, Pusan National University) ;
  • Jeong, W.B. (School of Mechanical Engineering, Pusan National University)
  • Received : 2012.08.06
  • Accepted : 2013.07.17
  • Published : 2013.08.10
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Abstract

The natural sloshing frequencies of annular cylindrical TLD are parametrically investigated by experiment, aiming at the exploration of its successful use for suppressing the structural vibration of spar-type floating wind turbine subject to multidirectional wind, wave and current excitations. Five prototypes of annular cylindrical TLD are defined according to the inner and outer radii of acryl container, and eight different liquid fill heights are experimented for each TLD prototype. The apparent masses near the first and second natural sloshing frequencies are parametrically investigated by measuring the apparent mass of interior liquid sloshing to the acceleration excitation. It is observed from the parametric experiments that the first natural sloshing frequency shows the remarkable change with respect to the liquid fill height for each TLD model with different container dimensions. On the other hand, the second natural sloshing frequency is not sensitive to the liquid fill height but to the gap size, for all the TLD models, convincing that the annular cylindrical sloshing damper can effectively suppress the wave- and wind-induced tilting motion of the spar-type floating wind turbine.

Keywords

Acknowledgement

Supported by : KETEP

References

  1. Balendra, T., Wang, C.M. and Cheong, H.F. (1995), "Effectiveness of tuned liquid column dampers for vibration control of tower", Engineering Structure, 17(9), 668-675. https://doi.org/10.1016/0141-0296(95)00036-7
  2. Biran, A.B. (2003), Ship Hydrostatics and Stability, Butterworth-Heinemann, Singapore.
  3. Cho, J.R., Lee, J.K. and Song, J.M. (2000), "Free vibration analysis of aboveround LNG-storage tanks by the finite element method", KSME International Journal, 14(6), 633-644. https://doi.org/10.1007/BF03184439
  4. Cho, J.R. and Lee, S.Y. (2002), "Dynamic analysis of baffled fuel-storage tanks using the ALE finite element method", International Journal for Numerical Methods in Fluids, 41(2), 185-208.
  5. Cho, J.R. and Lee, H.W. (2004), "Numerical study on liquid sloshing in baffled tank by nonlinear finite element method", Computer Methods in Applied Mechanics and Engineering, 193(23-26), 2581-2598. https://doi.org/10.1016/j.cma.2004.01.009
  6. Cho, J.R., Han, K.C., Hwang, S.W., Cho, C.S. and Lim, O.K. (2012), "Mobile harbor: structural dynamic response of RORI crane to wave-induced rolling excitation", Structural Engineering Mechanics, 43(5), 679-690. https://doi.org/10.12989/sem.2012.43.5.679
  7. Colwell, S. and Basu, B. (2009), "Tuned liquid column dampers in offshore wind turbines for structural control", Engineering Structures, 31, 358-368. https://doi.org/10.1016/j.engstruct.2008.09.001
  8. Dean, R.G. and Dalrymple, A.D., (1984), Water Wave Mechanics for Engineers and Scientists, 1st Edition, Prentice-Hall, New Jersey.
  9. Faltinsen, O.M. (1990), Sea Load on Ships and Offshore Structures, University of Cambridge.
  10. Faltinsen, O.M. and Timokha, A.N. (2009), Sloshing, Cambridge University Press.
  11. Hansen, A.D. and Hansen, L.H. (2007) "Wind turbine concept market penetration over 10 years (1995-2004)", Wind Energy, 10, 81-97. https://doi.org/10.1002/we.210
  12. Jin, Q., Li, X., Sun, N., Zhou, J. And Guan, J. (2007), "Experimental and numerical study on tuned liquid dampers for controlling earthquake response of jacket offshore platform", Marine Structures, 20, 238-254. https://doi.org/10.1016/j.marstruc.2007.05.002
  13. Karimirad, M., Meissonnier, Q., Gao, Z. And Moan, T. (2011), "Hydroelastic code-to-code comparison for a tension leg spar-type floating wind turbine", Marine Structures, 24, 412-435. https://doi.org/10.1016/j.marstruc.2011.05.006
  14. Lamb, H. (1932), Hydrodynamics, 6th Edition, Cambridge University Press.
  15. Lee, H.H., Wong, S.H. and Lee, R.S. (2006), "Response mitigation on the offshore floating platform system with tuned liquid column damper", Ocean Engineering, 33, 1118-1142. https://doi.org/10.1016/j.oceaneng.2005.06.008
  16. Lefebvre, S. and Collu, M. (2012) "Preliminary design of a floating support structure for a 5MW offshore wind turbine", Ocean Engineering, 40, 15-26. https://doi.org/10.1016/j.oceaneng.2011.12.009
  17. Min, K.W. and Park, E.C. (2009), "Dynamic characteristics of tuned liquid column dampers using shaking table test", The Korean Society for Noise and Vibration Engineering, 19(6), 620-627. https://doi.org/10.5050/KSNVN.2009.19.6.620
  18. Miyata, T., Yamada, H. and Saito, Y. (1989), "Feasibility study of the sloshing damper system using rectangular containers", Journal of Structural Engineering, 35A, 553-560.
  19. Morsy, H. (2010), "A Numerical Study of the Performance of Tuned Liquid Dampers", MD Thesis, MaMaster University, Hamilton, Canada.
  20. Yammamoto, K. and Kawahara, M. (1999), "Structural oscillation control using tuned liquid damper", Computers and Structures, 71, 435-446. https://doi.org/10.1016/S0045-7949(98)00240-5

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