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http://dx.doi.org/10.3744/SNAK.2012.49.4.312

Analysis on the Hydroelasticity of Whole Ship Structure by Coupling Three-dimensional BEM and FEM  

Kim, Kyong-Hwan (Department of Naval Architecture and Ocean Engineering, Seoul National University)
Bang, Je-Sung (Systems Engineering Research Division, Korea Institute of Machinery and Materials, Interdisciplinary Program in Computational Science and Technology, Seoul National University)
Kim, Yong-Hwan (Department of Naval Architecture and Ocean Engineering, Seoul National University)
Kim, Seung-Jo (School of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.49, no.4, 2012 , pp. 312-326 More about this Journal
Abstract
This paper considers a fully coupled 3D BEM-FEM analysis for the ship structural hydroelasticity problem in waves. Fluid flows and structural responses are analyzed by using a 3D Rankine panel method and a 3D finite element method, respectively. The two methods are fully coupled in the time domain using a fixed-point iteration scheme, and a relaxation scheme is applied for improve convergence. In order to validate the developed method, numerical tests are carried out for a barge model. The computed natural frequency, motion responses, and time histories of stress are compared with the results of the beam-based hydroelasticity program, WISH-FLEX, which was thoroughly validated in previous studies. This study extends to a real-ship application, particularly the springing analysis for a 6500 TEU containership. Based on this study, it is found that the present method provides reliable solutions to the ship hydroelasticity problems.
Keywords
Ship structural hydroelasticity; Full ship FEA; Rankine panel method; Springing analysis; Fluid-structure interaction;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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