基于UM的高速客车-桥耦合动力学仿真分析

Simulation Analysis of High-Speed Passenger Vehicle-Bridge Coupling Dynamics Based on UM

利用UM建立CRH2型车多刚体动力学模型,通过有限元分析软件ANSYS建立桥梁的参数化模型,并对桥梁进行柔性化处理,通过接口模块UM_ANSYS将桥梁有限元模型导入UM。仿真分析了在不同速度下车辆通过桥梁时,桥梁的振动特性以及车辆脱轨系数、轮重减载率等动力学性能;

The multi-rigid-body dynamics model of CRH2 vehicle is established by UM, the parameterized model of bridge isestablished by finite element analysis software ANSYS, and the bridge is treated by flexibility. The finite element model of bridge isimported into UM by interface module UM_ANSYS. The vibration characteristics of the bridge, the vehicle derailment coefficient andthe wheel load reduction ratio are simulated and analyzed when the vehicle passes the bridge at different speeds.