摘要
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。
A car-pedestrian accident reconstruction method based on Pc-Crash was proposed.In the method,Pc-Crash was used as a simulation platform,the accident scene and the car-pedestrian multi-bodies model was constructed,and then accidents were simulated according to contact positions of car-pedestrian and final rest positions of car and pedestrian;further,the rationality of simulation results was validated by some other accident information,e.g.,human body injury;finally,uncertainty of simulation results was evaluated by uncertainty analysis methods.The steps of the method were given through an example case of car-pedestrian accident.In the 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 by the method are more objective,and more efficient informations for accident survey can be obtained from these results.
出处
《振动与冲击》
EI
CSCD
北大核心
2011年第3期215-219,共5页
Journal of Vibration and Shock
基金
国家自然科学基金(50808181
10972241)
广东省科技计划项目(2009B030803038
2007B030102003)
广东省智能交通信息平台(2008B050100013)资助
关键词
事故再现
PC-CRASH
事故信息
不确定度评估
仿真
accident reconstruction
Pc-Crash
accident information
uncertainty evaluation
simulation
