Cause Analysis on Failure of a High-Temperature and Heavy-Load Self-Lubricating Joint Bearing after Overloading Test
摘 要
某高温重载自润滑关节轴承台架超载试验后,轴承内圈产生局部裂纹和断裂失效。采用宏观分析和微观分析等方法分析了轴承内圈出现裂纹和断裂的原因,并利用ANSYS有限元分析技术加以考察和验证。结果表明:该关节轴承出现裂纹和断裂是因为内外圈边缘和销钉槽部位未进行倒角处理,从而导致较大的应力集中;根据出现裂纹和断裂的原因以及ANSYS有限元分析结果,优化了该关节轴承的结构,减小了局部应力集中,有利于关节轴承台架试验的正常进行和轴承疲劳寿命的提高。
Abstract
After bench overloading test of a high-temperature and heavy-load self-lubricating joint bearing, local cracking and fracture failure occurred at the bearing inner ring. The causes of the cracks and fractures at the bearing inner ring were analyzed by means of macro analysis and micro analysis, and were examined and verified by ANSYS finite element analysis technology. The results show that the cracks and fractures of the joint bearing were due to the fact that the edges of the inner and outer rings and the pin grooves were not chamfered, which resulted in a large stress concentration. Then the joint bearing was optimized based on the causes of cracks and fractures and the results of ANSYS finite element analysis to reduce the local stress concentration, which was conducive to the normal operation of the joint bearing bench test and the improvement of the bearing fatigue life.
中图分类号 TB31 DOI 10.11973/lhjy-wl201804011
所属栏目 质量控制与失效分析
基金项目 上海市上海材料研究所科技创新项目(17SG-05)
收稿日期 2017/12/5
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备注司明明(1993-),男,硕士研究生,主要从事金属材料摩擦磨损性能研究,realmms@sina.com
引用该论文: SI Mingming,ZHU Haozang,WANG Fei,WANG Wendong. Cause Analysis on Failure of a High-Temperature and Heavy-Load Self-Lubricating Joint Bearing after Overloading Test[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2018, 54(4): 284~289
司明明,朱皓驵,王飞,王文东. 某高温重载自润滑关节轴承超载试验失效原因分析[J]. 理化检验-物理分册, 2018, 54(4): 284~289
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