Abstract:Based on the Hertz contact theory and curve beam theory, the von Mises stress peak value and location were analyzed which is raised in the wheel-rail contact of turntable support hollow wheels, with further analysis using planer strain finite element showed that the decreased wheel section height would increase the wheel flexibility, suppress contact normal stress and raise the wheel strength; but also might cause the peak location of von Mises stress spitted from center of contact area, which could double the stress circulation and reduce wheel fatigue strength. As for the wheel shear stress and rail von Mises stress, there is little influence caused by the variety of wheel section height to the peak value and location.
