선박구조 유탄성에 대한 BEM-FEM의 완전 연성해석과 실험적 검증

Abstract

In this paper, different numerical methods are introduced for the coupled hydroelasticity analysis of ship structures in regular and irregular waves. For the hydrodynamic analysis of flexible body motion, a timedomain Rankine panel method is applied. For the structural analysis, three different approaches are considered: beam approximation, modal approach by using the eigenvectors of three-dimensional (3-D) finite element(FE) model, and full 3-D FE analysis. For the computation of slamming force, wedge approximation and generalized Wagner model (GWM) are applied for 2-D slices of the ship. The computational results are compared with experimental results for the validation of the methodology and numerical scheme. The hydroelastic motions and loads on ship structures are compared for segmented models of large containerships.s applied. For the structural analysis, three different approaches are considered: beam approximation, modal approach by using the eigenvectors of three-dimensional (3-D) finite element(FE) model, and full 3-D FE analysis. For the computation of slamming force, wedge approximation and generalized Wagner model (GWM) are applied for 2-D slices of the ship. The computational results are compared with experimental results for the validation of the methodology and numerical scheme. The hydroelastic motions and loads on ship structures are compared for segmented models of large containerships.