At first, the vehicle kinetic model and impact model are set up. This paper puts forward five different vehicle impact models according to the collinear collision and two-dimension collision and the restitution coefficient is used in these models.
本文就以下两个方面进行了研究：首先建立了汽车碰撞的力学模型，根据交通事故中最普遍的一维碰撞和二维碰撞的不同情况，采用恢复系数和滑动摩擦系数等概念，分别建立了五种力学模型。
参考来源 - 道路交通事故模拟再现的研究及应用·2,447,543篇论文数据，部分数据来源于NoteExpress
For collinear collision, the preceding collision velocity and post collision velocity are calculated on the basis of the impact locality and stop locality of collision vehicle.
对于二维碰撞，可以根据车辆的碰撞位置和停止位置，反推计算出车辆碰撞后的分离速度和碰撞前的接触速度。
For collinear collision, the preceding collision velocity and post collision velocity are calculated on the basis of the slippage distance and unreturnable distortion of collision vehicle;
对于一维碰撞，根据碰撞后车辆的滑移距离和车辆的塑性变形量，反推计算出车辆碰撞后的速度和碰撞前的接触速度；
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