Research on Mechanism of Polygonal Wear of High-speed Wheel Based on Full-size Wheel-rail Roller Test Rig
The polygonal wear of high-speed train wheels occurs commonly and can increase the wheel-rail interaction force dramatically and have a bad effect on the operation safety and comfort of the train.The mechanism on initiation and development of the polygonal wear deserves further study.A high-speed rolling test is performed based on the full-size wheel-rail roller test rig and reproduced the whole process of the initiation and development of the polygonal wear in the laboratory.The mechanism of the initiation and development of the polygonal wear is clearly demonstrated.The evolution progress of the polygonal wear is detailed investigated under different test speed conditions.The effective countermeasures to suppress the polygonal wear development are proposed.The results obtained in the research will be helpful for the further study on the mechanism and countermeasures of the polygonal wear.
polygonal wearmechanismfull-size wheel-rail roller test righigh-speedcountermeasure
万方数据
维普
