均分区域法标记试验区域的行人保护试验研究

Experimental Study on Pedestrian Protection in Experimental Area Marked by Equipartition Zone Method

现阶段我国仍属于人、车混合的交通状况,车辆碰撞事故频繁发生。在车辆与行人碰撞事故中,行人属于弱势群体,加上现阶段车辆缺乏对行人保护的措施,行人伤亡严重。在汽车行人碰撞事故中,行人头部受重伤是造成行人死亡的主要因素;行人腿部受伤是造成行人受重伤的主要因素。基于两款车辆以均分区域法标记试验区域的行人保护头型碰撞测试数据,对其进行分析研究。得到在车辆前期设计时,将吸能空间留得足够大,可减小头型碰撞的伤害值,从而减小对行人的伤害。将理论分析与试验数据相结合,找到影响头型碰撞发动机罩伤害值大小的主要原因为发动机罩距离机舱内部的距离,通过前期造型设计使得发动机罩距离发动机舱内部部件距离足够大,来减小头型碰撞发动机罩的伤害值。

At present,our country is still a mixture of people and vehicles traffic conditions,vehicle collision accidents occur frequently.In the vehicle-pedestrian collision accident,the pedestrian is a vulnerable group,coupled with the current lack of vehicle pedestrian protection measures,pedestrian casualties serious.Serious head injury is the main cause of pedestrian death and leg injury is the main cause of pedestrian serious injury in vehicle pedestrian collision accidents.Based on the data of pedestrian protection head-type collision test of two types of vehicles marking the test area with the equal area method,it was analyzed and studied.The results show that in the early design of the vehicle,the energy absorption space is large enough to reduce the head impact damage value,so as to reduce the injury to pedestrians.Combining the theoretical analysis with the experimental data,it is found that the distance between the engine hood and the interior of the engine cabin is the reason that affects the damage value of the head-type collision engine hood,the distance between the engine hood and the internal parts of the engine cabin is large enough to reduce the damage caused by head-on collision.