基于SIMPACK的高速动车组建模与仿真

SIMPACK-based Modeling and Simulation of High Speed Multiple Units

从高速列车结构入手,考虑对车辆系统动力学影响较大的因素,分析各结构间铰接关系和力的传递方式及作用位置,基于多体动力学理论建立高速列车模型。考虑轨道交通相对于普通机械产品的本质区别,即轮轨关系的差异,参照高速列车试验规范,仿真计算高速列车在两侧轮对型面存在偏磨时车辆系统动力学性能,并与型面对称磨耗工况进行对比,进而得出偏磨对车辆系统动力学性能的影响。

Starting with the structure of the high speed train,taking into account of the factors which have significant influence on the dynamics of vehicle system,the hinged relations among various structures,the modes of the force distributions and their active positions were analyzed to establish the model of high-speed train based on the multi-body dynamics theory.Considering the essential difference of the track traffic compared to the general machinery products,namely,the difference of wheel-rail interaction,with reference to the high-speed train test specification,the simulating calculation of the dynamics performance of the vehicle system was conducted when there exists eccentric wear on both-side wheelset profiles of the high-speed train,which was compared with the working conditions of symmetrical wear on the profiles,from which the influence of the eccentric wear on the dynamics performance of the vehicle system was obtained.