Nonlinear Hydroelastic Analysis Using a Time-domain Strip Theory m Regular Waves

J. Ocean Eng. Technol. 2005;19(4):1-8.

CHO IL-HYOUNG;HAN SUNG-KON;KWON SEUNG-MIN;

College of Ocean Science, Cheju National University;Structure R&D Team, Daewoo Shipbuilding & Marine Engineering Co.;Structure R&D Team, Daewoo Shipbuilding & Marine Engineering Co.;

규칙파중 시간영역 스트립이론을 이용한 비선형 유탄성 해석

조일형;한성곤;권승민;

제주대학교 해양과학부;대우조선해양(주) 구조 R&D팀;대우조선해양(주) 구조 R&D팀;

Keywords: Time-domain, Strip Theory, Hydroelastic Analysis, Motion Response, Wave Load, Regular Waves

핵심용어: 시간영역, 스트립 이론, 유탄성 해석, 운동응답, 파랑 하중, 규칙파

Abstract

A nonlinear time-domain strip theory for vertical wave loads and ship responses is to be investigated. The hydrodynamic memory effect is approximated by a higher order differential equation without convolution. The ship is modeled as a non-uniform Timoshenko beam. Numerical calculations are presented for the S175 Containership translating with the forward speed in regular waves. The approach described in this paper can be used in evaluating ship motions and wave loads in extreme wave conditions and validating nonlinear phenomena in ship design.