航空重载面齿轮三维裂纹分析与疲劳寿命预测

王延忠; 田志敏; 侯良威; 兰州

航空重载面齿轮三维裂纹分析与疲劳寿命预测

北京航空航天大学机械工程及自动化学院, 北京 100191

基金项目: 国家高技术研究发展计划资助项目（SS2012AA040104）

详细信息

中图分类号: TH132.4
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出版历程
- 收稿日期: 2013-03-30
- 网络出版日期: 2014-02-20

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

摘要

摘要: 针对应用于航空重载传动的面齿轮寿命难以预测，分析其裂纹萌生和扩展过程以及相应的寿命.根据材料应变-寿命关系，利用MSC.Fatigue进行裂纹萌生仿真，分析不同负载扭矩、表面粗糙度、表面处理工艺下裂纹萌生寿命的变化规律；根据线性断裂力学理论，借助于Franc3D模拟裂纹扩展过程，直至满足断裂准则，由应力强度因子历程确定裂纹扩展寿命.最终获得面齿轮在不同表面粗糙度、表面处理工艺下的疲劳寿命曲线，实现面齿轮疲劳寿命的预测.
- 面齿轮 /
- 疲劳 /
- 寿命 /
- 裂纹萌生 /
- 裂纹扩展
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.
- face gear /
- fatigue /
- life cycle /
- crack initiation /
- crack propagation

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参考文献(10)

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