Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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A Study on the Contact Response Analysis Technique for Marine Slender Structure

수중세장체의 접촉응답해석 기법에 관한 연구

  • Hong, Sup (Maritime & Ocean Engineering Research Institute, KORDI) ;
  • Choi, Jong-Su (Maritime & Ocean Engineering Research Institute, KORDI) ;
  • Yeu, Tae-Kyeong (Maritime & Ocean Engineering Research Institute, KORDI) ;
  • Kim, Hyung-Woo (Maritime & Ocean Engineering Research Institute, KORDI)
  • 홍섭 (한국해양연구원 해양시스템안전연구소) ;
  • 최종수 (한국해양연구원 해양시스템안전연구소) ;
  • 여태경 (한국해양연구원 해양시스템안전연구소) ;
  • 김형우 (한국해양연구원 해양시스템안전연구소)
  • Published : 2007.02.28
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Abstract

Dynamic analysis of a marine slender structure is often involved with contacts among bodies or between bodies and seafloor. This paper presents an efficient and general contact search algorithm for dynamics in the context of the compliance contact model. A global detecting method that a bounding box is divided into several pieces in global coordinate system is presented in this paper. The method has an advantage that the number of contacting searching am be smaller than other methods for a system. The developed an efficient contact search algorithm is applied to the simulation program of 3D nonlinear dynamics of slender structure. Some examples are presented to show the validity of the proposed method.

수중세장체의 동적거동 해석시, 세장체간의 접촉, 세장체와 지면의 접촉이 흔히 포함된다. 본 논문에서는 접촉모델의 동적거동 해석을 위해 효율적이고 일반적인 접촉알고리듬을 다루고 있다. 절대좌표계에서 시스템의 경계상자를 만들고, 그것을 세분화하여 접촉감지에 사용하는 전역 감지 기술이 제안되었다. 접촉 감지의 횟수, 즉 접촉 감지 시간이 다른 방법에 비해 작다는 것이 이 방법의 장점이다. 개발된 효율적인 접촉 감지 알고리듬을 3차원 비선형 세장체 해석 프로그램에 적용하였으며, 몇 가지 수치예제를 통하여 제안된 방법의 효율성을 검증하였다.

Keywords

References

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