车辆侧碰事故中侧面刚度系数求解方法研究

Calculating the Side Stiffness Coefficient of Vehicles in Side-Impact Accident

目的研究建立侧碰类交通事故鉴定中碰撞车速计算的新方法。方法探讨了一种基于牛顿第三定律原理提出的求解碰撞事故车侧面刚度系数的方法,用于计算碰撞车速。结果该方法是根据目标车的变形初始速度和冲击车的碰撞力求得具体事故车的侧面刚度系数,同时,对方法中可能存在的误差进行了分析探讨,并提出了有效的解决方法。结论可以通过确定一个合适准确的置信区间来求解准确的碰撞车辆侧面刚度系数,应用于事故重建和事故原因分析。

Objective To calculate the pre-impact speed in side impact accident, which is a common type of traffic accidents. Method A method based on the Newton＇s third law was discussed, aiming at solving the side stiffness coefficient in a vehicle collision accident. Results The side stiffness coefficient of the target vehicle was determined with the damage offset speed 60 km/h of the target vehicle and the impact force of the front of the impact vehicle. The potential error associated with the method was analyzed, and an effective solution was put forward. Conclusion The side stiffness coefficient of the impact vehicle could be calculated by setting an appropriate confidence interval. The method could be applied to the accident reconstruction and the analysis of accident cause.