Stiffness Fluctuation Characteristics of Ball Bearings with Misalignment and Ball Distribution Error

被引：0
|
作者：
Xu H.-Y. [1 ]
Yang Y. [1 ]
Wang P.-F. [2 ]
Ma H. [1 ,3 ]
机构：
[1] School of Mechanical Engineering & Automation, Northeastern University, Shenyang
[2] China North Vehicle Research Institute, Beijing
[3] Key Laboratory of Vibration, Control of Aero-Propulsion System, Ministry of Education, Northeastern University, Shenyang
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2023年 / 44卷 / 03期
关键词：
ball bearing; ball distribution error; misalignment; quasi-static model; stiffness;
D O I：
10.12068/j.issn.1005-3026.2023.03.011
中图分类号：
学科分类号：
摘要：
Bearing misalignment may result in cage fractures and ball distribution errors. In order to analyze the effects of misalignments and ball distribution errors on the bearing stiffness fluctuation, considering the external loads and misalignments of inner and outer races, a quasi-static model of deep groove ball bearings with ball distribution errors is proposed. Based on the proposed model, the effects of ball distribution errors on the fluctuation characteristics of radial, axial and overturning stiffness of deep groove ball bearings under the condition of misaligned inner and outer races and external loads are further analyzed. The results show that the stiffness of the bearings fluctuates with the period of the ball passing through the outer race, that is, VC (variable compliance) vibration under the condition of the misaligned outer race and external loads. At this time, because of the existence of ball distribution errors, the bearing stiffness significantly fluctuates with the cage rotation period. The misalignments of the inner race rotating with the spindle cause the bearing stiffness to fluctuate by half of the inner race rotation period. The stiffness fluctuation amplitude increases due to the ball distribution errors. © 2023 Northeastern University. All rights reserved.
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页码：382 / 391
页数：9
相关论文
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