汽车与自行车碰撞事故重建研究

Research on Accident Reconstruction of Vehicle-bicycle Collision

汽车与自行车碰撞事故重建主要包括传统模型、经验模型和基于PC-Crash和Madymo软件的多刚体动力学仿真模型3类,分别用3类模型对国家车辆事故深度调查体系(NAIS)中一起汽车与自行车碰撞事故案例进行了事故重建,对各模型的相关参数进行了对比。研究结果显示:多刚体动力学模型能够较好地还原事故的碰撞过程,重建事故过程中的碰撞车速、碰撞对应关系、人员损伤等;基于Madymo软件的仿真模型能够更好地重建骑车人损伤的详细事故过程。

Methods for reconstructing vehicle-bicycle accidents can be classified into three categories：the traditional model, empirical model, multi-body（MB）dynamic models based on the PC-Crash andMadymo software. An accident case of the vehicle-bicycle collision was restored respectively with thethree kinds of models, provided by national automobile accident in-depth investigation system（NAIS）,and the related parameters of accident reconstruction model were compared. The results show the multi-body dynamic models can restore the collision process of the accident, and reconstruct the collisionspeed, collision correspondence, personnel injury in the process of the accident. The simulation modelbased on Madymo software can better reconstruct the detailed accident process of the cyclist injury.