论文部分内容阅读
人车碰撞过程中头部保护是国内外研究的一个重点,在HIC值相同的情况下头部加速度曲线可能千差万别,从而导致碰撞深度也有差异,因此,通过合理的车身结构设计来控制加速度曲线,可以保证在相同的碰撞深度下使头部伤害程度降低到最小。首先分析了几种常见的加速度近似波形的不同特性,并找出最优化的加速度曲线,然后借助有限元软件的仿真分析,通过对头部碰撞区域内的结构进行改进,实现对头部加速度的优化,从而降低头部的伤害程度。
Head protection during the collision between people and vehicles is a focus of the research at home and abroad. Under the same HIC value, the acceleration curves of the head may vary widely, resulting in different collision depths. Therefore, by controlling the acceleration curve through reasonable body structure design, It is guaranteed that the degree of head injury will be minimized with the same collision depth. First of all, we analyze several common characteristics of approximate acceleration waveform and find out the optimal acceleration curve. With the help of finite element software simulation, through the improvement of the structure of the head collision area, the acceleration of the head Optimized to reduce head injuries.