Hydroelastic Behavior for a Very Lagre Floating Structure of Poontoon-Type in Multi-Directional Irregular Waves

J. Ocean Eng. Technol. 2006;20(4):83-90.

Kim, Chel-Hyun;Jo, Hyo-Jae;Lee, Seung-Chul;Goo, Ja-Sam;

Dept. of Naval Architecture and Marine System Engineering, PuKyong National Univ.;Div. of Ocean Systems Engineering;Dept. of Naval Architecture and Marine System Engineering, PuKyong National Univ.;Dept. of Naval Architecture and Marine System Engineering

다방향불규칙파중의 Pontoon형의 초대형부유식해양구조물에 대한 유탄성응답 특성

김철현;조효제;이승철;구자삼;

부경대학교 조선해양시스템공학과;한국해양대학교 해양시스템공학부;부경대학교 조선해양시스템공학과;부경대학교 조선해양시스템공학과;

Keywords: Very large floating structure, Hydroelastic response, Three dimensional source distribution method, Multi-directional waves, Spectral analysis method, Elastic motion

핵심용어: 초대형부유식구조물, 유탄성응답, 3차원특이점분포법, 다방향파, 스펙트럴 해석법, 탄성거동

Abstract

Recently, as the technology of utilization for the ocean space is being advanced, floating structures are asked for being mare and mare huge-scale. A very large floating structure(VLFS) is considered as a flexible structure, because of a quite large length-to-breadth ratio and its geometrical flexibility. The main object of this study is to develop an accurate and convenient method on the hydroelastic response analysis of very large offshore structures on the real sea states. The numerical approach for the hydorelastic responses is based on the combination of the three dimensional source distribution methods, the dynamic response analysis method and the spectral analysis method. A model is considered as many rigid bodies connected elastic beam elements. The calculated results shaw good agreement with the experimental and calculated ones by Ohta.