Abstract
On the basis of simulation analysis, according to the process route from macro to micro, the effects of the contact stress on the raceway surface and the micro stress distribution of the inclusion on the raceway sub surface on the fatigue life of high-speed track bearings are simulated and analyzed. Firstly, by establishing the most common spherical inclusion as the simulated inclusion in this paper, the influence of subsurface stress in the case of inclusion is compared and analyzed, and the influence of the size, depth and type of inclusion on the stress is explored. Secondly, the influence of the change of fatigue life with size, depth and type is obtained from the fatigue life results calculated by the fatigue life calculation formula. The simulation results verify that the fatigue calculation model has a certain degree of accuracy, which provides a basis for the future research on the fatigue life of high-speed railway bearings.
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