头部与大挠度弹性板的撞击响应特性分析

在行人与汽车碰撞的研究中，头部-汽车发动机罩撞击损伤是重要的内容．把此问题简化为柔性球体与大挠度弹性板的大变形撞击响应问题，采用有限元方法分析了头部与汽车发动机罩撞击的动态响应特性，得出了相关因素对撞击响应的影响特点，并提出了具有行人保护作用的发动机罩的设计原则．为非线性动态响应力学问题的研究提供参考．

The analysis of collision-response during collision of head and elastic plate with large deflection

The research on the injury during head-and-hood collision is important in determining the safety factors during the collision of pedestrians and cars. The problem is simplified in this paper to the collision of a flexible ball and an elastic plate with large deflection. With FEM, the dynamic response during head-and-hood collision is analyzed, based on which the influences of different factors on collision response are obtained. Finally, some guidance is put forward for designing the hood, which may have the function of protecting pedestrians.