车辆正面碰撞与小角度碰撞仿真模拟研究

Simulation study of vehicle frontal collision and small angle collision

主要研究了车辆正面全宽碰撞和小角度碰撞,分析2种形式下车身的位移变化.首先利用HYPERMESH软件对模型进行参数设置,设置初始速度均为56km/h,然后利用LS-DYNA对模型进行碰撞分析,最后利用HYPERVIEW对结果进行分析查看并得出结论:当整车以56km/h的速度撞向刚性墙面时,小角度碰撞对驾驶员生存空间影响更大.

This research is mainly designed for the study of the full frontal collision and the small angle collision, and then it makes an analysis of the vehicle body？s displacement chan-ges under the two forms. Firstly, it sets the model parameter of initial velocity to 56 km/h using the software of HYPERMESH. Secondly, it uses LS-DYNA to simulate the collision.At last, it analyzes the result using HYPERVIEW and it comes to the conclusion that when the vehicle crashed into a rigid wall at the speed of 56 km/h , the small angle collision has a greater impact on the driver＇s survival space.