Wheel Tread Wear Prediction of High-Speed Railway Train.

It is significant to study railway wheel tread wear laws and predict wheel tread wear for the safe operation of trains. In this paper, a wheelset-rail finite element model was established for contact analysis, and simulation results were verified by contact tests carried out on a self-built wheel-rail test rig. Based on the physical work, the FE friction work calculation method was proposed to obtain the node friction work of contact area, and the wheel tread friction work was obtained by superposition of node friction work along the train running direction. Based on FE results of the wheel tread friction work, a wheel tread wear calculation method was proposed to predict wear amounts and worn profiles under different operating mileage conditions. It was found that the difference between predicted wear amounts and measured data is less than 5%, and the predicted worn profiles have the same change trend as the measured profiles. The wheel tread wear calculation method based on the FE friction work has high computational efficiency and reliability, and it has good research significance and practical value. [ABSTRACT FROM AUTHOR]