International Journal of Naval Architecture and Ocean Engineering

  • 제6권4호
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  • Pages.1064-1081
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  • 2014
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  • 2092-6782(pISSN)
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  • 2092-6790(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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Comparison of fully coupled hydroelastic computation and segmented model test results for slamming and whipping loads

  • 발행 : 2014.12.31
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초록

This paper presents a numerical analysis of slamming and whipping using a fully coupled hydroelastic model. The coupled model uses a 3-D Rankine panel method, a 1-D or 3-D finite element method, and a 2-D Generalized Wagner Model (GWM), which are strongly coupled in time domain. First, the GWM is validated against results of a free drop test of wedges. Second, the fully coupled method is validated against model test results for a 10,000 twenty-foot equivalent unit (TEU) containership. Slamming pressures and whipping responses to regular waves are compared. A spatial distribution of local slamming forces is measured using 14 force sensors in the model test, and it is compared with the integration of the pressure distribution by the computation. Furthermore, the pressure is decomposed into the added mass, impact, and hydrostatic components, in the computational results. The validity and characteristics of the numerical model are discussed.

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참고문헌

  1. Drummen, I. and Holtmann, M., 2014. Benchmark study of slamming and whipping. Ocean Engineering, 86, pp.3-10. https://doi.org/10.1016/j.oceaneng.2013.12.012
  2. Drummen, I., Storhaug, G. and Moan, T., 2008. Experimental and numerical investigation of fatigue damage due to waveinduced vibrations in a containership in head seas. Journal of Marine Science and Technology, 13, pp.428-445. https://doi.org/10.1007/s00773-008-0006-5
  3. Iron, B.M. and Tuck, R.C., 1969. A version of the Aitken accelerator for computer iteration. International Journal of Numerical Methods in Engineering, 1(3), pp.275-277. https://doi.org/10.1002/nme.1620010306
  4. Kawai, T., 1973. The application of finite element methods to ship structures. Computers & Structures, 3(5), pp.1175-1194. https://doi.org/10.1016/0045-7949(73)90044-8
  5. Khabakhpasheva, T.I., Kim, Y. and Korobkin, A.A., 2014. Generalized Wagner model of water impact by numerical conformal mapping. Applied Ocean Research, 44, pp.29-38. https://doi.org/10.1016/j.apor.2013.10.007
  6. Kim, K.H. and Kim, Y., 2008. On technical issues in the analysis of nonlinear ship motion and structural loads in waves by a time-domain Rankine panel method. Proceedings of the 23rd International Workshop on Water Waves & Floating Bodies, IWWWFB23, Jeju, Korea, 13-16 April 2008.
  7. Kim, J.H., Kang, B.C., Kim, Y. and Kim, Y., 2012. Ship springing analysis for a very large container ship. International Journal of Offshore and Polar Engineering, 22(3), pp.217-224.
  8. Kim, J.H. and Kim, Y., 2014. Numerical analysis on springing and whipping using fully-coupled FSI models. Ocean Engineering, 91, pp.28-50. https://doi.org/10.1016/j.oceaneng.2014.08.001
  9. Kim, Y., Kim, K.H. and Kim, Y., 2009a. Time domain springing analysis on a floating barge under oblique wave. Journal of Marine Science and Technology, 14, pp.451-468. https://doi.org/10.1007/s00773-009-0068-z
  10. Kim, Y., Kim, K.H. and Kim, Y., 2009b. Analysis of hydroelasticity of floating ship-like structures in time domain using a fully coupled hybrid BEM-FEM. Journal of Ship Research, 53(1), pp.31-47.
  11. Kim, Y., Kim, K.H. and Kim, Y., 2009c. Springing analysis of seagoing vessel using fully coupled BEM-FEM in the time domain. Ocean Engineering, 36(11), pp.785-796. https://doi.org/10.1016/j.oceaneng.2009.04.002
  12. Kring, D.C., 1994. Time domain ship motions by a three-dimensional Rankine panel method. Ph.D. dissertation, Mass Inst. of Technology, USA.
  13. Maritime and Ocean Engineering Research Institute/Korea Institute of Ocean Science and Technology (MOERI/KIOST, current KRISO/KIOST), 2013. Wave induced loads on ships joint industry project-III report. MOERI Report No BSPIS 7230-10306-6. Daejeon: MOERI.
  14. Mei, X., Liu, Y. and Yue, D.K.P., 1999. On the water impact of general two-dimensional sections. Applied Ocean Research, 21(1), pp.1-15. https://doi.org/10.1016/S0141-1187(98)00034-0
  15. Nakos, D.E., 1990. Ship wave patterns and motions by a three dimensional Rankine panel method. Ph.D. dissertation, Mass Inst. of Technology, USA.
  16. Oberhagemann, J. and Moctar, O., 2012. Numerical and experimental investigations of whipping and springing of ship structures. International Journal of Offshore and Polar Engineering, 22(2), pp.108-114.
  17. Senjanovic, I., Tomasevic, S. and Vladimir, N., 2009a. An advanced theory of thin-walled girders with application to ship vibrations. Marine Structures, 22(3), pp.387-437. https://doi.org/10.1016/j.marstruc.2009.03.004
  18. Senjanovic, I., Tomasevic, S., Rudan, S. and Senjanovic, T., 2009b. Role of transverse bulkheads in hull stiffness of large containerships. Engineering Structures, 30(9), pp.2492-2509.
  19. Senjanovic, I., Vladimir, N., Tomic, M., 2012. Formulation of consistent restoring stiffness in ship hydroelastic analysis. Journal of Engineering Mathematics, 72(1), pp.141-157. https://doi.org/10.1007/s10665-011-9468-2
  20. Storhaug, G., Derbanne, Q., Choi, B.K., Moan, T. and Hermundstad, O.A., 2011. Effect of whipping on fatigue and extreme loading of a 13,000 TEU container vessel in bow quartering seas based on model tests. Proceedings of the 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011-49370, Rotterdam, the Netherlands, 19-24 June 2011, pp.293-302.
  21. Timman, R. and Newman, J.N., 1962. The coupled damping coefficients of a symmetric ship. Journal of Ship Research, 5(4), pp.1-7.
  22. Tuitman, J.T., 2010. Hydro-elastic response of ship structures to slamming induced whipping. Ph.D. dissertation. Delft University of Technology, Delft, the Netherlands.
  23. Zhao, R. and Faltinsen, O., 1993. Water entry of two-dimensional bodies. Journal of Fluid Mechanics, 246, pp.593-612. https://doi.org/10.1017/S002211209300028X