Abstract
Running under the condition of heavy loads and accelerating status, the fretting damage of wheelset interference fit surface brings great hidden danger to the running safety of the train. Based on heavy loads train equipment parameters and running conditions by using the finite element software ABAQUS finite element model is established and simulated by different axle load and wheel inner hole under the conditions of different amount of interference with the axle wheel seat interference fitted surface fretting slip three-dimensional distribution, and the interference fit different axial location wheel revolving process of three feature points in axial and tangential fretting slip. The results show that the axial fretting slip of the edge of the interference fit surface is much larger than that of the middle, and the outer side is larger than the inner side, with a maximum value 22 µm; tangential fretting slip of interference fit surface reaches the maximum value 9.8µm, when the node rotates by about 270°. The influence of the value of shrink fit on fretting slip is more obvious than that of loads on the axle of the wheelset.
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