斜碰撞再现反推算法研究

结合近年来积累的交通事故调研经验,通过建立轮胎侧偏特性模型、四车轮车辆运动仿真分析模型,解决车辆轮胎印迹内的垂直载荷分布不同的问题,以及由地面多种因素对车辆运动产生不同影响的问题和车辆本身复杂的受力问题,达到事故再现的目的。通过反推计算车辆在碰撞事故发生时的运动状态,可以科学的再现车辆斜碰撞事故发生的过程,明确当事人的事故责任,提供了重要的参考。最后通过运用车辆碰撞分析软件PC-crash,结合具体的交通事故实例,验证了关于汽车斜碰撞反推计算理论的研究结果在实际的交通事故处理中具有较高的实用性与可靠性。

Study on Reproduction of Car-to-car Oblique Crash Based on Reverse-reasoning Calculation

According to the recent experiences of traffic accident investigation and by setting up the theoretical models of the tire lateral compliance characteristics and the four-wheel simulative model,the difference of vertical load distribution on the tire track in the work condition,the impact caused by different diathesis engendered from the road surface and the complicated forces suffered by the car were overcome to get the pre-impact motion and situation of the vehicle.Using the reverse-reasoning method for calculating the car's pre-impact motion,the whole process of the car-to-car oblique crash accident can be reproduced scientifically and the responsibility of each party suffered in the accident can be confirmed.In the end,with the crash analyzing software PCCRASH and the worked outcome in a real crash case,it is proved that the reverse-reasoning calculation result is of practicality and reliability in evaluating and dealing with the car-to-car oblique crash.