MULTI-TERM COUPLING METHOD FOR THE ANALYSIS OF WAVE-INDUCED SHIP MOTION IN NONLINEAR RANDOM WAVES

Abstract

An effcient numerical model is developed for the analysis of wave-induced floating-body motion in nonlinear and random waves. A multi-term coupling technique, which favorably represents the fluid motion in vertically integrated forms, is used to derive the basic wave equations. This acheives more general applicability and higher computational efficiency of the corresponding FEM-based model, as compared to conventional numerical models. The result of fundamental examinations, conducted via comparisons with other analytical and numerical models, show sufficient reliability of the present model.