基于LS-DYNA的车辆-护栏碰撞仿真模型

Simulation of vehicle colliding with steel guardrail based on LS-DYNA

针对车辆与护栏的实体碰撞试验难度大、经费高、周期长、数据不易获取的情况,基于LS-DYNA有限元软件,在分析实际碰撞试验的基础上,建立了碰撞车辆仿真模型和护栏仿真模型,优化碰撞过程,最终形成了车辆-护栏碰撞仿真模型;同时,与实际试验数据进行对比,分析了误差形成原因。结果表明,仿真模型试验结果与实车试验结果基本一致,验证了仿真模型的正确性。

In view of the fact that the collision test for the vehicle and the guardrail faces many problems such as it is difficult to conduct, it is costly and the data are not easy to obtain, based on the finite element code LS-DYNA, the actual impact test is simulated, with a simulation model of the vehicle and the guardrail. It is shown that the results of the simulation model test basically agree with those of the real vehicle test.