基于事故重建的骑车人头部碰撞测评工况研究  

Research on Two-Wheeler Head Crash Evaluation Conditions Based on Accident Reconstruction

作　　者：龙永程 费敬 李雪玲 谭普元[3] 李凡 Long Yongcheng;Fei Jing;Li Xueling;Tan Puyuan;Li Fan(State Key Laboratory of Vehicle NVH and Safety Technology,Chongqing 401122;China Automotive Engineering Research Institute Co.,Ltd.,Chongqing 401122;Tsinghua University,Beijing 100084;State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Changsha 410082)

机构地区：[1]汽车振动噪声和安全技术国家重点实验室,重庆401122 [2]中国汽车工程研究院股份有限公司,重庆401122 [3]清华大学,北京100084 [4]汽车车身先进设计制造国家重点实验室,长沙410082

出　　处：《汽车技术》2023年第4期50-56,共7页Automobile Technology

摘　　要：为了研究交通事故中两轮车骑车人头部碰撞工况,通过事故重建对汽车-两轮车碰撞模型进行验证,针对轿车和SUV车型分析了头部碰撞区域、速度和角度的差异,结合现有行人保护测评要求提出了测评建议。结果表明:骑车人头部碰撞速度与行人头部碰撞速度差别不大;对于发动机罩前缘高度不高于850 mm的车辆,头部碰撞区域建议将包络线(WAD)范围从2 100 mm扩大至2 300 mm,碰撞角度为45°;对于发动机罩前缘高度高于850 mm的车辆,无需扩大头部碰撞区域。In order to study the head crash conditions of two-wheeler cyclist in traffic accident,this paper verified the car-to-two-wheeler crash model by accident reconstruction,and analyzed the differences of head impact area,speed and angle on sedan and SUV models,proposed the evaluation suggestions in combination with the existing pedestrian protection evaluation requirements.The results show that the head crash speed of the cyclist is not different from that of pedestrians.For the vehicle with Bonnet Leading Edge(BLE)height bellow 850 mm,it is recommended to expand the Wrap Around Distance(WAD)of head crash area from 2100 to 2300 mm,and the collision angle is 45°.For vehicles with BLE height higher than 850 mm,there is no need to expand the area.

关 键 词：汽车安全 头部碰撞 事故重建 两轮车 

分 类 号：U461.91[机械工程—车辆工程]