Life prediction for rolling contact fatigue crack initiation of kiln wheels |
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| Authors: | Shen Yiping Wang Songlai Li Xuejun B S Dhillon |
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| Institution: | 1. Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China; 2. Department of Mechanical Engineering, University of Ottawa, Ottawa, Ontario K1N6N5, Canada |
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| Abstract: | This paper investigates the rolling contact fatigue of kiln wheels with respect to the axis line deflection, which is linear with the applied supporting loads on wheels. Fatigue crack initiation criteria for elastic shakedown, plastic shakedown and ratcheting material responses are applied to assess wheels responses with two sets of axial line deflection. The finite element simulations are performed by using the bilinear material mode for nonlinear and kinematic hardening in ANSYS 11.0. By comparing the results from different critera, it is showed that the low cycle fatigue is the predominated failure. Results from different axial line deflections indicate that the optimum adjustment can greatly enhance the whole life of the supporting structure. |
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| Keywords: | rolling contact fatigue crack initiation finite element simulation axis line deflection shakedown map |
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