Nonlinear Analysis of the Interaction of Waves and Flexible Floating Structure

摘要

A nonlinear numerical method, which is applicable to arbitrary wave conditions, is developed to analyze the hydroelastic responses of a flexible floating structure by applying BEM to evaluate the fluid motion and FEM to analyze the deformation of structure. A time domain solution is obtained by prescribing the conditions on wave generation boundary for each time step. The effect of space and time discretizations on the convergence and stability of solution is discussed by comparing among numerical solutions, so that their optimum combinations for regular, multi-component and solitary waves are obtained respectively. The validity of the present method is verified by comparing with experimental results for the three kinds of waves mentioned above.