In the application of the contact detection device for out-of-round of the wheel,it was found that when the train runs at a high speed,the accuracy of the detection results is low,and the detection rod is prone to damage.Taking the dynamic contact detection device for out-of-round of the wheel based on a parallelogram mechanism as an example,a three-dimensional finite element simulation model of the detection device is established,the simulation results are analyzed,and the reasons for low accuracy of detection results and easy damage of detection rods during detecting at higher speeds are obtained.Optimization measures are proposed.The simulation test results show that during detecting at higher speeds,the vertical load between the wheel flange and the detection rod can be reduced,the accuracy of the de-tection results is improved after the slope at the entrance of the front wheel flange of the detection rod of the dynamic contact detection device for out-of-round of the wheel based on a parallelogram mechanism is reduced from 5.5°to 2.48°.
Metro EMUWheelOut-of-roundContact DetectionDynamic DetectionDetection DeviceSimulation
NETL
NSTL
万方数据
