基于Pc-Crash的车-人事故再现*

提出基于Pc-Crash的车-人事故再现方法，即以Pc-Crash为仿真平台，构建事故现场及车、人多刚体模型，以车、人接触部位及人、车最终停止位置等事故信息为重要证据对事故进行仿真，并利用人体损伤等其他事故信息验证仿真结果的合理性，最后利用不确定性分析理论评估所得结果的不确定度。以一车-人碰撞事故为例，演示了该方法的步骤。案例再现分析中，事故信息都得到合理利用，并借助响应曲面法与蒙特卡罗方法获得了事故再现结果的分布。算例表明，利用该方法所得再现结果不仅更为客观，且能为事故鉴定提供更多有效信息。

Car-pedestrian accident reconstruction based on Pc-Crash

A car-pedestrian accident reconstruction method based on Pc-Crash was proposed. In this method, Pc-Crash is used as a simulation platform, the accident scene and the car-pedestrian multi-body model will be constructed firstly, and then accidents will be simulated according to contact positions of car-pedestrian and rest positions of car and pedestrian; after that, the rationality of simulation results will be validated by some other accident information, e.g., human body injury; finally, uncertainty of simulation results will be evaluated by uncertainty analysis methods. The steps of this method were given in a car-pedestrian accident case. In this case, all accident information was used reasonably, and the distribution of accident reconstruction result was obtained with the help of response surface method and Monte Carlo method. The case shows that reconstruction results from this method are more objective, and more efficient information for accident survey can obtained from these results.