铁路货车动力学仿真分析与线路测试结果一致性研究

以窄轨矿石敞车为研究对象,在线路静态扭曲减载试验和线路动力学试验的基础上,从车辆系统固有频率、轮重减载率、车体加速度功率谱密度以及特定线路下弹簧变形量等方面对仿真分析和试验数据进行了比较分析。在此基础上,对仿真模型进行了修正和验证,并对仿真分析结果与测试数据之间的偏差因素进行了分析。

Research on Data Consistency of Railway Truck Dynamic Simulation Analysis and Testing

This paper takes the narrow ore gondola wagon as the research object,on the basis of the static twist testing and dynamic testing,and carries out comparative analysis of truck system’s natural frequency,unloading ratio,power spectrum density of the car body acceleration and spring defection on the specific track.According to the test data,it validates the dynamic model by modifying the related dynamic parameters and analyzes the influence factors of the difference between simulation and testing.