微型客车与SUV之间的侧面碰撞兼容性

Side impact compatibility between minivan and SUV

微型客车与运动型多用途汽车(SUV)之间发生侧面碰撞时,导致被撞车车内的乘员伤亡率很大,兼容性突出。本文以某微型客车和SUV为例,采用仿真研究方法,发现SUV与目标车微型客车之间的侧面碰撞兼容性不理想。然后利用单一变量控制原理,分别改变两车质量比﹑目标车侧围刚度以及几何结构,进行了多组仿真分析,以研究侧面碰撞兼容性的影响因素。结果表明:两车质量比对B柱腰线处的最大侵入速度的影响最大,侧围刚度对B柱侵入量的影响最大,几何结构对目标车车门最大侵入量的影响最大。

The side crash accident between SUV （sport utility vehicle） and minivan leads to serious injury for passengers in the impacted car. The authors explored the compatibility between minivan and a SUV using simulation method. The compatibility between minivan and SUV was undesirability as found in premier simulation. Single variable principle was used to explore influence factors for side impact compatibility. And multi-group simulated analyses were carried out by changing the mass ratio between two vehicles, the lateral stiffness of target vehicle, and the geometric structure, respectively. The results show that the two-vehicle mass ratio hasthe most effect on the B pillar maximum intrusion velocity at waist line; the side stiffness has the most influence on the B pillar intrusion displacement; and the geometric structure has the most impact on the target vehicle door maximum intrusion displacement.