A Hydroelastic Analysis of a Floating Fish Cage in Waves

J. Ocean Eng. Technol. 2009;23(6):7-11.

Choi Yoon-Rak,Yeo Hwan-Tae

School of Naval Architecture and Ocean Engineering University of Ulsan,Shipbuilding Division Hyundai Heavy Industries Co. LTD.

부유식 가두리 양식장의 파랑중 유탄성 응답 해석

최윤락,여환태

울산대학교 조선해양공학부,현대중공업 조선사업본부

Key Words: Floating fish cage, Hydroelastic response, Method of generalized mode, Higher-order boundary element method, Drift force

핵심용어: 가두리 양식장, 유탄성 응답, 일반화 모드법, 고차경계요소법, 표류력

Abstract

The dynamic responses and drift forces in waves of a floating circular fish cage are analyzed considering hydroelastic effects. The method of generalized mode is used to calculate the hydroelastic responses of the floater of cage. The elastic mode shapes, generalized mass, and stiffness in dry mode are evaluated by using a structural analysis code. The higher-order boundary element method is adopted to analyze the interaction between fluid and deformable structure. Some results of vertical motions and drift forces are shown and compared with those for a rigid body.