论文部分内容阅读
钢轨、轨下垫层、道床的状态对客车的运行具有很大的影响 ,也是最主要的三个因素 .据此运用车辆 -轨道垂向系统统一模型对不同轨道刚度情况下引起的车辆和轨道响应进行了仿真计算 ,并对计算结果进行小波分析和功率谱处理 ,主要分析了钢轨、轨下垫层、道床刚度的变化对客车轴箱加速度的影响 ,同时对用客车轴箱加速度的变化反推道床的刚度状态进行了探索 .结果表明 ,小波分析在检测道床状态中显示了其优越性 .
The status of railroad track, underlaying cushion and ballast bed have a great influence on the operation of the bus and are also the most important three factors.According to the unified model of vehicle-rail vertical system, the vehicle and track caused by different track stiffness The simulation results are analyzed and the results of wavelet analysis and power spectrum processing are mainly analyzed. The influence of rail and underlaying cushion and rail bed stiffness on the acceleration of passenger car axle box is analyzed. At the same time, the change of acceleration of passenger car axle box The results show that the wavelet analysis shows its superiority in detecting the status of ballast bed.