车辆对行人头部伤害的仿真分析

Simulative Analysis of Influence of Pedestrian and Vehicle Movement on Goer's Head Injuries

通过计算机仿真模型再现行人与车辆发生碰撞事故的情况。仿真结果表明 :发生碰撞时车辆的行驶速度对行人头部与发动机罩的相对碰撞速度有高度显著影响 (α=0 .0 1) ,发生碰撞时行人的行进速度对试验结果有显著影响 (α=0 .0 2 5 ) ,而发生碰撞时车辆的行驶速度和行人的行进速度的交互作用对试验结果几乎没有影响。因此 ,为了使头部模块试验能更准确地反映出实际事故中行人头部的伤害情况 。

In this thesis, pedestrian vehicle collisions were reconstructed by a computer simulation model, which is used to analyze the influence of pedestrian and vehicle movement on the relative impact velocity between goer's head and bonnet top surface. The results showed that while collisions happened,the instantaneous velocity of vehicle had a significant effect on the relative collision velocity between goer's head and bonnet top as well as that pedestrian, and the mutual action between vehicle velocity and pedestrian velocity had a little effect on that. So,we can draw the conclusion that in order to simulate the situation of goer's head injuries in real life impact more accurately, it is absolutely necessary to consider the influence of pedestrian movement condition before collision on direction and value of the relative impact velocity between goer's head and bonnet top surface.