齿轮根部裂纹扩展路径的实验和数值研究

IF 4.7 2区 工程技术 Q1 MECHANICS Engineering Fracture Mechanics Pub Date : 2024-10-22 DOI:10.1016/j.engfracmech.2024.110583
Haifeng He , Liangyu Zhao , Jiahong Huang , Heli Liu , Yuhong Yuan
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引用次数: 0

摘要

齿轮弯曲疲劳失效对电动汽车和风力涡轮机等先进机械的运行性能有重大影响,可能导致传动系统失效并造成灾难性后果。目前,有几种方法可用于预测齿轮裂纹的扩展,但缺乏对其预测裂纹路径的准确性和效率的全面比较。在本研究中,我们使用有限元(FE)分析和实验测试对常用汽车齿轮根部裂纹的扩展路径进行了研究。通过用户自定义的 Python 脚本,使用商业软件 ABAQUS 综合了三种混合裂纹路径预测标准来预测齿轮根部裂纹的扩展。分析了齿轮裂纹参数(包括齿轮初始裂纹长度)对齿轮根部裂纹扩展行为的影响。模拟结果通过使用单齿弯曲试验装置进行的齿轮弯曲疲劳试验进行了验证。结果表明,模拟结果与实验测试结果一致,表明所有三个标准都能有效预测齿轮根部裂纹扩展行为。
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Experimental and numerical studies on the propagation paths of gear root cracks
Gear bending fatigue failure has a significant impact on the operational performance of advanced machinery, such as electric vehicles and wind turbines, potentially leading to failures and catastrophic consequences for transmission systems. Several methods are currently used to predict gear crack propagation; however, a comprehensive comparison of their accuracy and efficiency in predicting crack paths is lacking. In this study, the propagation path of root cracks in commonly used automotive gears was investigated using finite element (FE) analysis and experimental testing. Three mixed crack path prediction criteria were integrated to predict the gear root crack propagation using the commercial software ABAQUS by user-defined Python script. The impacts of gear crack parameters, including the gear initial crack length, on gear root crack propagation behaviour were analysed. The simulations were verified by the gear bending fatigue test using a single tooth bending test device. The results indicate that the simulation outcomes align with the experimental tests, demonstrating that all three criteria are effective in predicting gear root crack propagation behaviours.
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来源期刊
CiteScore
8.70
自引率
13.00%
发文量
606
审稿时长
74 days
期刊介绍: EFM covers a broad range of topics in fracture mechanics to be of interest and use to both researchers and practitioners. Contributions are welcome which address the fracture behavior of conventional engineering material systems as well as newly emerging material systems. Contributions on developments in the areas of mechanics and materials science strongly related to fracture mechanics are also welcome. Papers on fatigue are welcome if they treat the fatigue process using the methods of fracture mechanics.
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