Comparison of fully coupled hydroelastic computation and segmented model test results for slamming and whipping loads
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
This paper presents a numerical analysis of slamming and whipping using a fully coupled hydroelasticmodel. The coupled model uses a 3-D Rankine panel method, a 1-D or 3-D finite element method, and a 2-D GeneralizedWagner Model (GWM), which are strongly coupled in time domain. First, the GWM is validated against resultsof a free drop test of wedges. Second, the fully coupled method is validated against model test results for a 10,000twenty-foot equivalent unit (TEU) containership. Slamming pressures and whipping responses to regular waves arecompared. A spatial distribution of local slamming forces is measured using 14 force sensors in the model test, and it iscompared with the integration of the pressure distribution by the computation. Furthermore, the pressure is decomposedinto the added mass, impact, and hydrostatic components, in the computational results. The validity and characteristicsof the numerical model are discussed.
Abstract
This paper presents a numerical analysis of slamming and whipping using a fully coupled hydroelasticmodel. The coupled model uses a 3-D Rankine panel method, a 1-D or 3-D finite element method, and a 2-D GeneralizedWagner Model (GWM), which are strongly coupled in time domain. First, the GWM is validated against resultsof a free drop test of wedges. Second, the fully coupled method is validated against model test results for a 10,000twenty-foot equivalent unit (TEU) containership. Slamming pressures and whipping responses to regular waves arecompared. A spatial distribution of local slamming forces is measured using 14 force sensors in the model test, and it iscompared with the integration of the pressure distribution by the computation. Furthermore, the pressure is decomposedinto the added mass, impact, and hydrostatic components, in the computational results. The validity and characteristicsof the numerical model are discussed.
참고문헌 (23)
- Drummen, I., "Benchmark study of slamming and whipping", Ocean Engineering, 86, pp.3~10 (2014)
- Drummen, I., "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 (2008)
- Iron, B.M., "A version of the Aitken accelerator for computer iteration", International Journal of Numerical Methods in Engineering, 1(3), pp.275~277 (1969)
- Kawai, T., "The application of finite element methods to ship structures", Computers & Structures, 3(5), pp.1175~1194 (1973)
- Khabakhpasheva, T. I., "Generalized Wagner model of water impact by numerical conformal mapping", Applied Ocean Research, 44, pp.29~38 (2014)
- Kim, K.H., "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 (2008)
- Kim, J. H., "Ship springing analysis for a very large container ship", International Journal of Offshore and Polar Engineering, 22(3), pp.217~224 (2012)
- Kim, J.H., "Numerical analysis on springing and whipping using fully-coupled FSI models", Ocean Engineering, 91, pp.28~50 (2014)
- Kim, Y., "Time domain springing analysis on a floating barge under oblique wave", Journal of Marine Science and Technology, 14, pp.451~468 (2009)
- Kim, Y., "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 (2009)
- Kim, Y., "Springing analysis of seagoing vessel using fully coupled BEM-FEM in the time domain", Ocean Engineering, 36(11), pp.785~796 (2009)
- Kring, D. C., "Time domain ship motions by a three-dimensional Rankine panel method", 박사, pp.1994
- Wave induced loads on ships joint industry project-III report, "Maritime and Ocean Engineering Research Institute", MOERI, ~, pp.MOERI Report No BSPIS 7230-10306-6 (2013)
- Mei, X., "On the water impact of general two-dimensional sections", Applied Ocean Research, 21(1), pp.1~15 (1999)
- Nakos, D. E., "Ship wave patterns and motions by a three dimensional Rankine panel method", 박사, pp.1990
- Oberhagemann, J., "Numerical and experimental investigations of whipping and springing of ship structures", International Journal of Offshore and Polar Engineering, 22(2), pp.108~114 (2012)
- Senjanović, I., "An advanced theory of thin-walled girders with application to ship vibrations", Marine Structures, 22(3), pp.387~437 (2009)
- Senjanović, I., "Role of transverse bulkheads in hull stiffness of large containerships", Engineering Structures, 30(9), pp.2492~2509 (2009)
- Senjanović, I., "Formulation of consistent restoring stiffness in ship hydroelastic analysis", Journal of Engineering Mathematics, 72(1), pp.141~157 (2012)
- Storhaug, G., "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, pp.293~302 (2011)
- Timman, R., "The coupled damping coefficients of a symmetric ship", Journal of Ship Research, 5(4), pp.1~7 (1962)
- Tuitman, J. T., "Hydro-elastic response of ship structures to slamming induced whipping", 박사, pp.2010
- Zhao, R., "Water entry of two-dimensional bodies", Journal of Fluid Mechanics, 246, pp.593~612 (1993)