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研究了如何在高速列车设计阶段预测机车振动舒适特性.首先采用ANSYS建立某型号高速列车M车的有限元模型,在MATLAB中采用频域法对功率谱密度进行处理;然后以轨道水平不平顺为例进行瞬态分析模拟出高速列车在运行时的整车响应,采集地板上某些节点加速度响应数据,进行相关处理后得出了M车对应的舒适度和平稳性指标.这种方法使理论设计阶段进行有效地评价高速列车在不同运行工况下的振动特性和旅客乘坐舒适性成为可能
This paper studies how to predict the locomotive vibration comfort characteristics in the design phase of high-speed train.Firstly, the finite element model of a certain type of high-speed train M car is established by ANSYS and the power spectrum density is processed by frequency domain method in MATLAB. Then, Take transient analysis to simulate the whole vehicle response of high-speed train during operation, collect the acceleration response data of some nodes on the floor, and then get the corresponding comfort and stability index of M-car.This method makes the theory It is possible to effectively evaluate the vibration characteristics and passenger comfort of high-speed trains under different operating conditions during the design phase