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为研究行人在人车碰撞交通事故中伤害程度的数量关系,应用PCcrash软件模拟100组车辆碰撞行人交通事故,获得行人头部和胸部的加速度和受力情况,计算头部HIC值及胸部3ms合成加速度值;并将碰撞时车辆速度、制动减速度、行人身高和体重作为变量,回归分析与头部HIC值及胸部3ms合成加速度值的关系,得到碰撞时行人伤害程度方程;通过实例验证方程的有效性较高。
In order to study the quantitative relationship between pedestrians ’injuries in the accident of vehicle collision, PCcrash software was used to simulate the impact of 100 groups of vehicles on pedestrian traffic accidents to get the acceleration and stress of pedestrians’ head and thorax. The HIC value of head and 3 ms And the relationship between the head HIC value and the resultant acceleration of the chest 3 ms was obtained by using the vehicle speed, braking deceleration, pedestrian height and weight at the time of collision as variables, and the equation of degree of pedestrian injury during collision was obtained. More effective.