多浮体系统在波浪作用下运动响应的数值仿真研究

摘要

This paper adopts the method of overset mesh and multibody dynamics,in combination with the boundary conditions established in the experiment,to investigate the numerical simulation of motion response of ocean floating body from the change of pitch angel and yaw angle of the floating system.The numerical results show that the simulated motion is in consistent with the experimental results,indicating the correctness of the physical model and simulation methods.It also shows that the model can simulate accurately the motion of the floating body in the ocean,and can be used to predict the sea states and optimize the design,which can provide references for the research on the stability of floating body system.%针对海上浮体在波浪作用下的运动仿真问题,对某海上浮体系统采用嵌套网格和多体动力学方法,结合实验建立相应的边界条件,从浮体系统的俯仰角和偏航角的变化来探究海上浮体运动响应的数值仿真问题.通过对比实验结果,结果显示模拟仿真的运动情况基本与实验相符,表明物理模型和仿真方法的正确性.仿真模型能够准确地仿真浮体在海洋中的运动情况,可以对浮体系统进行不同海况的预测和设计优化,该方法可为海上浮体系统的研究提供一定的参考.