다양한 강성분포를 갖는 VLFS의 유탄성응답 고찰

Abstract

This paper investigates the hydroelastic responses of very large floating structures (VLFS) for various stiffness distribution. Since the floating body considered in this paper is a very large plate structure, elastic model considering flexibility is valid instead of rigid body model in numerical analysis. The effect of hydrostatic stiffness, added mass and hydro-radiation damping due to fluid flow is also considered in the analysis. Hydroelastic responses are calculated by direct method. Higher-order boundary element method (HOBEM) is employed in the analysis of fluid flow and the plate structure is analyzed by finite element method (FEM) using Mindlin plate elements. An 1 km-long VLFS is considered in numerical analysis.