侧面碰撞远端老年乘员损伤研究  

Research on the Far-End Elderly Occupant Injury in Side Impact

作　　者：武和全[1,2] 张凯[1] 胡林[1] Wu Hequan;Zhang Kai;Hu Lin(Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle,Changsha University of Science and Technology,Changsha 410114;Bioengineering Center,Wayne State University,Detroit MI48201,USA)

机构地区：[1]长沙理工大学,工程车辆安全性设计与可靠性技术湖南省重点实验室,长沙410114 [2]韦恩州立大学,生物工程中心,美国底特律MI48201

出　　处：《汽车技术》2023年第2期28-36,共9页Automobile Technology

基　　金：国家自然科学基金项目(51875049);湖南省自然科学基金项目(2021JJ30723);湖南省教育厅科学研究项目(19A008)。

摘　　要：为探究欧洲新车评价规程(Euro-NCAP)侧面碰撞条件下远端老年乘员的运动学响应和损伤机理,首先利用老年人体模型CHARM-70建立台车模型,然后建立整车AE-MDB侧面碰撞和侧面斜柱碰撞有限元模型,进行整车碰撞仿真并提取非碰撞侧B柱底部加速度脉冲,最后,基于THUMS_AM50_V4.0人体模型和老年人体模型CHARM-70建立单乘员和双乘员台车仿真模型,进行AE-MDB侧面碰撞和侧面斜柱碰撞仿真。结果表明:在侧面碰撞中,安全带无法有效限制远端乘员因惯性而导致的侧向偏移;在单乘员台车仿真中,远端老年乘员头部和颈部损伤值远小于阈值,但胸部出现大面积严重肋骨骨折;在双乘员台车仿真中,远端老年乘员的头部和胸部出现严重损伤。In order to explore the kinematic responses and injury mechanisms of far-end elderly occupants under the current Euro-NCAP side impact condition,a sled model was established using the elderly human body model CHARM-70,then the Advanced European Mobile Deformable Barrier(AE-MDB)side impact and oblique pole side impact finite element model were established,to conduct the vehicle collision simulation,and extract the acceleration pulse at the bottom of the B-pillar on the non-collision side.Finally,the single-occupant and double-occupant sled simulation models were established based on the THUMS_AM50_V4.0 human body model and the elderly human body model CHARM-70,to conduct the AE-MDB side impact and oblique pole side impact simulation.The results show that in the side impact,the seat belt can’t effectively limit the lateral offset caused by the inertia of the far-end occupant;in the single-occupant sled simulation,the head and neck injury values of the far-end elderly occupants are far less than the threshold,but the chest suffers serious rib fracture;in the double-occupant sled simulation,the far-end elderly occupants suffer severe head and chest injuries.

关 键 词：远端乘员损伤 有限元方法 老年乘员 欧洲新车评价规程 AE-MDB 侧面斜柱碰撞 

分 类 号：U491.61[交通运输工程—交通运输规划与管理]