汽车与行人碰撞的动力学响应仿真研究

行人保护是汽车安全研究领域的重要问题之一。该文旨在研究真实事故中汽车前碰撞行人的动态响应。基于这一点，使用了一个经过验证的行人数学模型，模拟真实碰撞事故中行人的动态响应。文中对行人模型的运动学响应以及真实事故记录进行了比较，并且计算了头、胸、骨盆、下肢等人体各部分与损伤相关的参数。基于模拟研究的结果，提出了减少行人损伤风险的城区限行时速和通过改进汽车前部结构减少行人碰撞损伤严重程度的可行措施。

Stimulation Study on Dynamic Response of Pedestrian in Vehicle Front Impact

This paper aims at investigating dynamic response of a pedestrian in car front impacts as a first step of research on pedestrian protection. For this purpose a validated pedestrian mathematical model is used to simulate the impact response of a pedestrian in a crash accident. The kinematics of the pedestrian model is compared with that recorded from the accident. The injury-related parameters concerning head, chest, pelvis and lower extremities are calculated from the mathematical simulation. Based on the results from the simulation study, a feasible speed limit is discussed to reduce the risk of pedestrian injuries. The possible countermeasures by improving vehicle front structure to mitigate the injury severity of the pedestrian are analyzed. Further study on pedestrian protection by using mathematical model is proposed.