西安电子科技大学学报 ›› 2021, Vol. 48 ›› Issue (6): 131-137.doi: 10.19665/j.issn1001-2400.2021.06.016

• 信息与通信工程 • 上一篇    下一篇

齿根裂纹与齿面剥落故障的振动响应机理研究

万志国1(),贺王鹏2(),廖楠楠2(),窦益华1(),郭宝龙2()   

  1. 1.西安石油大学 机械工程学院,陕西 西安 710065
    2.西安电子科技大学 空间科学与技术学院,陕西 西安 70071
  • 收稿日期:2020-07-13 出版日期:2021-12-20 发布日期:2022-02-24
  • 通讯作者: 贺王鹏
  • 作者简介:万志国(1988—),男,讲师,E-mail: wanzhiguo168@163.com|廖楠楠(1995—),女,西安电子科技大学博士研究生,E-mail: nnliao@stu.xidian.edu.cn|窦益华(1964—),男,教授,博士,E-mail: yhdou@vip.sina.com|郭宝龙(1962—),男,教授,博士,E-mail: blguo@xidian.edu.cn
  • 基金资助:
    国家自然科学基金(51805398);国家自然科学基金(51674199)

Study on the vibration response mechanism of gear root crack and spalling

WAN Zhiguo1(),HE Wangpeng2(),LIAO Nannan2(),DOU Yihua1(),GUO Baolong2()   

  1. 1. School of Mechanical Engineering,Xi’an Shiyou University,Xi’an 710065,China
    2. School of Aerospace Science & Technology,Xidian University,Xi’an 710071,China
  • Received:2020-07-13 Online:2021-12-20 Published:2022-02-24
  • Contact: Wangpeng HE

摘要:

齿根裂纹与齿面剥落是齿轮系统常见的局部损伤类故障。由于故障机理研究不足,目前的齿轮故障诊断方法还无法精确辨识这两种故障。基于能量法建立了用于求解齿根裂纹及齿面剥落时变啮合刚度的解析计算模型,对比分析了两种故障对时变啮合刚度影响的不同内在机理。采用集中参数法与梁单元理论建立了齿轮系统的非线性动力学模型,通过动力学仿真分析了两种故障振动响应特征的不同之处。研究结果表明:虽然齿根裂纹与齿面剥落故障都会使系统产生周期性的振动冲击响应,但是这两种故障在一个啮合周期内产生的振动冲击响应的数量及规律存在一定差异。研究结果揭示了齿根裂纹与齿面剥落故障振动响应机理的不同之处,为这两种故障的精确诊断提供了理论基础。

关键词: 齿轮, 齿根裂纹, 剥落, 时变啮合刚度, 动力学模型, 振动响应机理

Abstract:

Root crack and spalling are common gear faults in a gear transmission system.Due to the lack of research on the fault mechanism,these two fault types cannot be accurately identified by the current gear fault diagnosis methods.Based on the energy method,an analytical model is established to analyze and compare the different mechanisms of the influence of the two faults on the time-varying meshing stiffness.A dynamic model of the gear system is established to analyze the vibration response mechanism of the root crack and spalling fault.By comparison,it is found that although the root crack and spalling fault will make the system produce the periodic vibration and impact response,the number and law of impact response produced by the two faults in one meshing cycle are quite different.The research results reveal the differences in vibration response mechanism between root crack and tooth spalling faults,which provides a theoretical basis for the accurate diagnosis of these two kinds of faults.

Key words: gear, root crack, spalling, time-varying meshing stiffness, dynamic model, vibration response mechanism

中图分类号: 

  • TH17