Abstract
This paper presents development of a Higher Order Boundary Element Method (HOBEM) program for analyzing wave response of box-like Very Large Floating Structures (VLFS). In order to analyze such structures, the problems that 1) elastic deformation of the structure should be considered in the hydroelastic analysis, and 2) large size of its computation in CPU time and required storage size, should be overcome. The program, developed utilizes modal superposition method for both rigid body motions and bending modes of the floating plate in order to account for dynamic coupling between fluid and structure responses. The computation size has been reduced by employing higher order BEM which utilizes 2nd order 8-noded panels and utilizing double-symmetry with respect to χ- and y-axis. A box-like VLFS having the length of 2000m, the width of 400m, and the draft of 4m has been successfully analyzed up to L/λ= 50 (L: length of structure, λ: incident wave length).
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