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Analysis on Deformation and Stiffness of Frame Structure for Fishery using Finite Element Methods

유한 요소법을 이용한 어업용 프레임 구조물의 변형 및 강도 해석

  • 김태호 (국립수산과학원) ;
  • 류청로 (부경대학교) ;
  • 김대안 (여수대학교)
  • Published : 2002.11.01

Abstract

In order to evaluate the deformation and stiffness of frame structure for fishery, composed of unit platforms which made of two concentric high density polyethylene buoys fixed by clamps and belts and rubber hinge components, under wave, the structural analysis for the square type of the structure was carried out by using finite element methods. The accurate physical properties of rubber hinge components determined by material tests were an important parameter to evaluate more reliable structural stability for the structure. The idealization to beam element with equivalent stiffness and rubber element with linearity for rubber hinges was necessary for the modeling of rubber component which has hyper-elastic characteristics. In addition, it was shown that the structural response of the structure under wave was larger in the hogging condition than that of in the still water or in the sagging condition.

Keywords

Deformation;Stiffness;Frame structure for fishery;Rubber hinge components;Finite element methods

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