대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제49권4호
  • /
  • Pages.312-326
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  • 2012
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  • 1225-1143(pISSN)
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  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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3차원 경계요소법과 전선 유한요소 해석의 연성을 통한 전선 유탄성 해석

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

  • 김경환 (서울대학교 조선해양공학과) ;
  • 방제성 (한국기계연구원 시스템엔지니어링연구본부, 서울대학교 협동과정 계산과학전공) ;
  • 김용환 (서울대학교 조선해양공학과) ;
  • 김승조 (서울대학교 기계항공공학부)
  • 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)
  • 투고 : 2011.11.14
  • 심사 : 2012.07.17
  • 발행 : 2012.08.20
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초록

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.

키워드

참고문헌

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