基于Pc-Crash软件的人-车碰撞事故仿真规律研究

Study on Laws of Vehicle-pedestrian Accident Simulation Based on Pc-Crash Software

以Pc-Crash软件为平台,仿真分析两例实际的人-车碰撞试验。通过对比仿真结果与试验的吻合情况,并结合其他学者所提及的现象,总结了仿真中人-车接触部位、行人终止点位置及抛距、行人被车辆抛出后的运动情况等与实际情况的耦合程度的规律。发现利用Pc-Crash软件实现对人-车碰撞事故仿真时,人-车接触部位与实际情况可以耦合得很好,行人终止点位置一般总体抛距与实际情况差不多,而行人被车辆抛出后的运动情况则与实际不符,针对这些现象提出一些建议。对更好地利用Pc-Crash软件实现对人-车碰撞事故的仿真分析有一定的意义。

Two vehicle-pedestrian tests were simulated by Pc-Crash.Through comparing results from simulation with results from tests and combining phenomena mentioned by other scholars,the laws of coupling degree of the results,which include the contact locations on vehicle,the rest location and throw distance and throw-out movement of the pedestrian,were summarized from the simulation and the tests.It is concluded that using Pc-Crash to simulate a vehicle-pedestrian accident can make a precise prediction on the throw distance and the contact locations on vehicle of pedestrian,a less precise prediction on the rest location of pedestrian and a considerable discrepancy prediction on throw-out movement.Finally,corresponding advice is proposed.This study will be useful in using Pc-Crash to reconstruct a vehicle-pedestrian accident.