斜浪下多浮体结构物运动响应的仿真分析

Simulation Analysis of the Motion Response of a Multiple Floating Structures in Oblique Waves

针对斜浪对浮体运动响应的数值仿真问题,基于计算流体力学软件对多浮体系统采用嵌套网格方法和流体域体积方法建立数值波浪水池,结合多刚体动力学建立浮体系统模型。通过对比仿真和实验结果验证数值模型的正确性,对浮体系统在斜浪下的运动响应进行仿真分析。采用的仿真方法与其他方法比较,具有可实现复杂浮体系统的数值仿真,易于建模和修改参数等优点,对浮体的姿态预报和浮体的稳定性研究具有重要参考价值。

This paper mainly discusses the motion response of the multiple floating body under oblique waves.A numerical wave model is established with the overlapping grid method and volume of fluid method based on computational fluid dynamics and a multi-floating system is modeled based on rigid dynamics.On the basis of comparing numerical and experimental results under head waves,the correctness of the numerical model is validated.Then,the motion response of the floating body system under oblique waves is simulated.The stability of the floating body.Compared with other methods,the method adopted in this paper has the advantages of realizing the numerical simulation of complex multi-floating system,which is easy to model and modify parameters,so the simulation and conclusions in this paper can provide reference for the motion posture prediction.