复合材料无人艇碰撞动力学数值仿真

Numerical simulation of collision dynamics of composite unmanned boats

针对复合材料无人艇碰撞损伤特性及耐撞性能优化问题,首先开展无人艇用复合材料力学性能试验研究,得到复合材料各项基本力学性能参数;在确保材料参数合理性的基础上,开展不同复合材料铺层角度下复合材料无人艇的耐撞性能数值仿真研究,获得复合材料无人艇的碰撞力、位移、加速度以及主要构件的吸能,从而确定耐撞性能较优的复合材料无人艇材料铺层方案,为分析复合材料无人艇碰撞及优化无人艇耐撞性能提供了研究基础。

To address the problem of crash damage characteristics and crashworthiness optimization of composite unmanned boats,this paper firstly carries out experimental research on the mechanical properties of composite materials for unmanned boats and obtains the basic mechanical properties parameters of composite materials.On the basis of ensuring the rationality of material parameters,numerical simulation studies on the crash worthiness of composite unmanned boats under different composite lay-up angles are carried out to obtain the collision force,displacement,acceleration and energy absorption of the main components of composite unmanned boats,so as to determine the material lay-up scheme of composite unmanned boats with better crash worthiness.This provides the basis for the analysis of the collision of the composite unmanned boat and the optimization of the crash worthiness of the unmanned boat.