轨道车辆垂向振动的Matlab建模与仿真教学研究

摘要

In the course of urban rail vehicle engineering teaching, it is needed to establish and resolve complex differential equation to analysis on urban rail vehicle vertical vibration, which brings much dififculties to students’ understanding, In this paper, it is used of Matlab and its visualization and simulation tools Simulink to establish the wheel load system simulation model with two series springs, and the vertical vibration rules of rail vehicle body and bogie are carried out on the basis of the detailed simulation analysis. The results show that the simulation waveforms are consistent with the results of the theoretical analysis method, verify that the Matlab simulation method has good application value on teaching of urban rail vehicle engineering.%在城市轨道车辆工程课程的教学中，城轨车辆垂向振动问题的分析需建立并求解复杂的微分方程，给学生理解带来较大困难，应用Matlab的可视化仿真工具Simulink建立二系簧车轮荷重系统垂向振动的仿真模型，在此基础上对车体和转向架的垂向自由振动规律进行了较详细的仿真分析。结果表明，仿真结果与理论分析方法具有一致性，验证了Matlab仿真方法在城轨车辆垂向振动教学中具有较好的应用价值。