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深沟球轴承非赫兹接触及失效机理分析

奚强 胡玉梅 皮阳军 金晓清

奚强, 胡玉梅, 皮阳军, 金晓清. 深沟球轴承非赫兹接触及失效机理分析[J]. 机械科学与技术, 2019, 38(12): 1868-1876. doi: 10.13433/j.cnki.1003-8728.20190059
引用本文: 奚强, 胡玉梅, 皮阳军, 金晓清. 深沟球轴承非赫兹接触及失效机理分析[J]. 机械科学与技术, 2019, 38(12): 1868-1876. doi: 10.13433/j.cnki.1003-8728.20190059
Xi Qiang, Hu Yumei, Pi Yangjun, Jin Xiaoqing. Non-Hertz Contact and Failure Mechanism Analysis of Ball Bearings with Deep Groove[J]. Mechanical Science and Technology for Aerospace Engineering, 2019, 38(12): 1868-1876. doi: 10.13433/j.cnki.1003-8728.20190059
Citation: Xi Qiang, Hu Yumei, Pi Yangjun, Jin Xiaoqing. Non-Hertz Contact and Failure Mechanism Analysis of Ball Bearings with Deep Groove[J]. Mechanical Science and Technology for Aerospace Engineering, 2019, 38(12): 1868-1876. doi: 10.13433/j.cnki.1003-8728.20190059

深沟球轴承非赫兹接触及失效机理分析

doi: 10.13433/j.cnki.1003-8728.20190059
基金项目: 

国家自然科学基金项目 51475057

详细信息
    作者简介:

    奚强(1994-), 硕士研究生, 研究方向为汽车结构强度与疲劳、汽车被动安全专业仿真及结构设计, 20163202021t@cqu.edu.cn

    通讯作者:

    胡玉梅, 教授, 博士生导师, cdrhym@163.com

  • 中图分类号: TH133.33

Non-Hertz Contact and Failure Mechanism Analysis of Ball Bearings with Deep Groove

  • 摘要: 考虑轴向载荷、弹塑性本构、协调接触、轴承游隙等因素的影响,对某汽车变速器中所采用的深沟球轴承在服役过程中出现的失效问题通过非赫兹有限元数值模型进行了求解,并据此分析了该轴承在工作过程中的失效机理。进一步研究了轴承材料本构、交变载荷等因素对接触状态的影响。结果表明:弹性本构承载体积小于弹塑性本构,应力水平高于弹塑性本构;载荷按一定角度作用可以降低轴承内部应力极值;载荷增加使应力极值和初始屈服深度增加,但当载荷过大时,初始屈服深度会急剧减小。
  • 图  1  某故障轴承的滚珠与滚道

    图  2  轴承对称截面接触情况

    图  3  弹性半空间接触压力分布

    图  4  接触模型及有限元域

    图  5  接触压力分布

    图  6  次表面应力分布

    图  7  滚珠滚道接触三维有限元模型

    图  8  接触压力分布

    图  9  范式等效应力分布

    图  10  范式等效应力分布局部放大图

    图  11  滚珠滚道接触特性变化过程

    图  12  接触表面最大等效应力变化过程

    图  13  最大等效应力及最大剪切应力深度

    图  14  接触面积变化

    图  15  次表面应力分布对比

    图  16  载荷偏角对应力大小的影响

    图  17  载荷偏角对应力深度的影响

    图  18  载荷大小对应力大小的影响

    图  19  载荷大小对应力深度的影响

    表  1  滚珠载荷分布

    滚珠序号 径向力/N 轴向力/N
    1 7 615.11 385.33
    2 4 449.48 747.85
    3 1 018.70 547.58
    4 608.62 532.68
    5 672.47 641.45
    6 608.41 536.33
    7 1 049.46 555.82
    8 4 384.27 731.83
    下载: 导出CSV
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出版历程
  • 收稿日期:  2018-12-05
  • 刊出日期:  2019-12-05

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