汽车-两轮车碰撞事故再现的关键是确定碰撞速度。本文在动力学分析的基础上建立了汽车与两轮车相互侧面碰撞的模型,得到了两车碰撞速度的表达式;筛选出影响汽车、两轮车碰撞速度推算和事故再现结果准确性的主要参数;通过具体的事故案例设定正交实验,分别获得了对汽车、两轮车的参数影响权重顺序;据此指导PC-Crash对一起真实的汽车-两轮车碰撞案例进行模拟重建。结果表明,按参数权重顺序辅助汽车-两轮车碰撞事故的再现仿真,可用较短时间再现与实际事故情况相吻合的结果。
The key to the accident reconstruction of car-motorcycle collision is the determination of collision speeds. In this paper,the models for two mutual side collisions between car and motorcycle are set up based on kinetic analysis,with the collision speed expression of two vehicles obtained. The main parameters influencing the accuracies of collision speed reckoning and accident reconstruction are selected. For a specific accident case,orthogonal experiments are performed to obtain the significance order of parameter effects of two vehicles,and based on which as a guide,a reconstruction of a real car-motorcycle crash case is conducted with PC-Crash. The results show that the accident reconstruction of car-motorcycle collision assisted by parameter weight order can reproduce a result well agreeing with real case in shorter time.