Load distribution and stiffness change of ball bearing damaged by shaft current

被引：0
|
作者：
Li X. [1 ]
Su J. [1 ]
Xu J. [1 ]
Qu X. [1 ]
Li B. [1 ]
机构：
[1] School of Mechanical Engineering and Automation, Northeastern University, Shenyang
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2023年 / 42卷 / 09期
关键词：
angular contact ball bearing; damage function; load; shaft current; stiffness;
D O I：
10.13465/j.cnki.jvs.2023.09.008
中图分类号：
学科分类号：
摘要：
Here, based on surface morphology of shaft current damage pits, a fault characterization model was proposed to study load distribution and stiffness change of damaged angular contact ball bearing. Firstly, the analysis model of angular contact ball bearing considering elastic contact and interaction between roller and raceway was established, and the correctness of the model was verified. Secondly, the fault model and piecewise function expression of shaft current damage pits on bearing outer raceway with different lengths, widths and depths were proposed. Finally, effects of shaft current damage pits with different sizes and shapes on load distribution and stiffness variation of ball bearing were studied by using the fault model. The results showed that a certain amount of deformation can be released during rolling process from rolling in to rolling out of a shaft current damage pit to cause partial or total loss of bearing capacity in damaged area; with shaft current damage pit becoming larger, ball bearing stiffness changes more largely and more rapidly. © 2023 Chinese Vibration Engineering Society. All rights reserved.
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页码：68 / 76
页数：8
相关论文
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