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Volume 40 Issue 2
Feb.  2014
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Journal of Beijing University of Aeronautics and Astronautics  > 2014  >  40(2): 148-153.
Wang Yanzhong, Tian Zhimin, Hou Liangwei, et al. Three-dimensional crack analysis and fatigue life prediction of aero heavy-load face gear[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(2): 148-153. (in Chinese)
Citation: Wang Yanzhong, Tian Zhimin, Hou Liangwei, et al. Three-dimensional crack analysis and fatigue life prediction of aero heavy-load face gear[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(2): 148-153. (in Chinese)
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Three-dimensional crack analysis and fatigue life prediction of aero heavy-load face gear

  • School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 30 Mar 2013
  • Publish Date: 20 Feb 2014
    Abstract
  • Aiming at that life of face gear used in the aero heavy-load condition is difficult to predict, it's necessary to analyze the processes and lives of crack initiation and propagation. Using strain-life relationship and MSC.Fatigue, the simulation of crack initiation life was in progress to analyze the trend of different load torques, surface roughnesses and surface treatments; according to the theory of linear fracture mechanics, the process of crack propagation was simulated using Franc3D until meeting the fracture criterion and the crack propagation life was calculated on the basis of stress intensity factor. Finally, fatigue life curves of face gear at different surface roughnesses and surface treatments were obtained, which can be used to predict fatigue life of face gear.

     

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