基于显式有限元软件的地铁列车耐撞性研究

On the Crashworthiness of Metro Train Based on Explicit Finite Element

为了验证某型地铁列车的耐撞性能,根据该型地铁列车头车、中间车的车体结构、车体材料特性、总体布置和钩缓特性,利用显式有限元软件ANSYS/LS-DYNA,建立两列相同地铁列车碰撞的有限元模型。参考国内、外有关地铁、轻轨车辆耐碰撞设计规范及准则,对列车的碰撞过程进行数值模拟。研究结果表明,该型地铁列车的耐撞性能满足相关标准的要求。

Abstract In order to verify the crashworthiness of a certain type of metro train, the collision finite element models of two similar metro trains are established by using explicit finite element software ANSYS/LS-DYNA, according to the structure of head car and middle car, the material char- acteristics of carbody, the overall layout, the characteris- tics of couplers and buffers. By referring to crashworthi- hess design specifications and guidelines of metro train and light rail vehicle in the world, the crash process is numerically simulated. The result shows that the crashworthiness of this type metro train is consistent with the requirements of related specifications.