东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (11): 1625-1628.DOI: -

• 论著 • 上一篇    下一篇

深沟球轴承动态有限元数字仿真

李昌;孙志礼;   

  1. 东北大学机械工程及自动化学院;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2008-11-15 发布日期:2013-06-22
  • 通讯作者: Li, C.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2006AA04Z408)

Dynamic finite element numerical simulation for bearings with deep ball filling slots

Li, Chang (1); Sun, Zhi-Li (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2008-11-15 Published:2013-06-22
  • Contact: Li, C.
  • About author:-
  • Supported by:
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摘要： 基于动态接触力学和显式动力学有限元算法,采用三维实体单元建立参数化的深沟球轴承三维有限元模型.利用有限元软件LS-DYNA和自适应网格技术对深沟球轴承的工作运动过程进行了数值模拟,得出了轴承内外圈、滚珠、保持架之间的接触应力、应变的变化情况及接触过程中的压力分布情况.并将计算结果与赫兹理论计算结果进行比较,验证了动态有限元仿真的合理性.在此基础上,综合考虑了轴承原始制造误差、转速、载荷等不同工况对轴承动态性能的影响,为轴承的疲劳强度计算和动态优化设计提供了可靠的理论依据.

关键词: 球轴承, 动态接触算法, 显式动力有限元, 接触应力, 赫兹接触

Abstract: A 3-D parameterized finite element model was developed introducing physical elements for the rolling bearings with deep ball filling slots, based on the dynamic contact and explicit dynamics. With the finite element software ANSYS/LS-DYNA and adaptive grid method, a numerical simulation was done for the whole operating process of those bearings, thus revealing the change in contacting stress strain between the inner/outer ring, rolling balls and ball retainer and relevant pressure in distribution. The result showed that the dynamic simulation is reasonable in comparison with the calculation result by Hertz's theory. Then, the effects of the bearing initial error arising from manufacture, rotating speed and load on the dynamic performance of those bearings are taken into account to provide theoretically reliable reference to the calculation of fatigue strength and optimum dynamic design of those bearings.

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