Analysis Methods of Hydroelastic Responses for a Very Large Floating Structure

J. Ocean Eng. Technol. 2000;14(2):19-27.

초대형 부유식 해양구조물의 유탄성 응답에 대한 해석 방법

이호영

울산대학교 공과대학 수송시스템 공학부

Keywords: Source-dipole distribution method, Pressure disribution metho, Fintie element method, Mode expansion method, Hydroelastic responses

핵심용어: 소오스-다이폴 분포법, d 압력분포법, 유한요소법, 모드 전개법, 유탄성응답

Abstract

In this paper hydroelastic responses of a very large floating structure(VLFS) are studied theoretically. We have been developed the source and dipole distribution method and pressure distribution method to evaluate the hydrodynamic pressures. The problem of vertical structural responses due to waves are calculated by using finite element method(FEM) and modal expansion method of a free-free beam Hydroelastic responses of VLFS in waves are computed by four methods developed in this paper. As a result the theoretical results of motion responses show good agreements with experimental ones