考虑冲击激励的局部缺陷角接触球轴承振动特性

雷春丽; 宋瑞哲; 樊高峰; 刘凯; 薛伟; 李建华

doi:10.13224/j.cnki.jasp.20230211

考虑冲击激励的局部缺陷角接触球轴承振动特性

doi: 10.13224/j.cnki.jasp.20230211

雷春丽^1,,
宋瑞哲^1,*, ,,
樊高峰²,
刘凯¹,
薛伟¹,
李建华¹

1.
兰州理工大学机电工程学院，兰州 730050
2.
云南文山铝业有限公司，云南文山 663000

基金项目: 国家自然科学基金（51465035）；甘肃省自然科学基金（20JR5RA466）

详细信息

作者简介:
雷春丽（1977-），女，教授、博士生导师，博士，主要从事机械系统动力学方面的研究

通讯作者:
宋瑞哲（1997-），女，硕士生，主要从事机械系统动力学方面的研究。E-mail：610306728@qq.com

中图分类号: V229⁺.2；TH133.3
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- 被引次数: 0
出版历程
- 收稿日期: 2023-04-04
- 网络出版日期: 2024-04-15

Vibration characteristics of angular contact ball bearing with local defect considering impact excitation

1.
School of Mechanical and Electrical Engineering，Lanzhou University of Technology，Lanzhou 730050，China
2.
Yunnan Wenshan Aluminum Company Limited，Wenshan Yunnan 663000，China

摘要

摘要:
为了更详细地表征具有局部缺陷的角接触球轴承的运行状态，针对传统模型未考虑不同缺陷类型及其引起的冲击力等问题，建立了考虑冲击激励的局部缺陷角接触球轴承动力学模型。根据不同缺陷类型分别提出角接触球轴承局部缺陷时变位移激励模型。在此基础上，建立了与缺陷尺寸以及轴承转速有关的瞬时冲击力函数。基于Hertz接触理论和冲击力函数，提出外圈具有局部缺陷角接触球轴承动力学计算方法；研究了具有故障的球轴承振动特性，并通过实验验证，获得了不同参数对轴承动力学响应的影响规律。计算结果表明：随着缺陷尺寸和载荷的增大，轴承故障特征的频率均不变，但其幅值增大。随着主轴转速的增大，轴承故障特征的频率增大，幅值发生变化。这3个影响因素的增大均会加剧轴承的振动。
- 冲击激励 /
- 角接触球轴承 /
- 局部缺陷 /
- 振动特性 /
- 时变位移激励
Abstract:
In order to characterize the operation state of angular contact ball bearing (ACBB) with local defects in detail, a dynamic model of ACBB with local defects considering the impact excitation was proposed to solve the problems of incomplete factors and inadequate description in the traditional model. According to the time-varying displacement excitation model of ACBB with local defects, the instantaneous impact force function related to defect size and bearing speed was established. Based on Hertz contact theory and impact force function, the dynamic calculation method of ACBB with a local defect in outer ring was presented. The vibration characteristics of the ball bearing with faults were investigated, and the dynamic response of the bearing under different working conditions was analyzed. The results showed that with the increase of defect size and load, the fault characteristics frequency of bearing was kept unchanged, but its amplitude increased. With the increase of speed, the frequency of bearing also increased and the amplitude changed. The increase of these three factors could aggravate the vibration of bearing.
- impact excitation /
- angular contact ball bearing /
- local defects /
- vibration characteristics /
- time-varying displacement excitation

HTML

图 1 轴承局部缺陷轮廓描述

Figure 1. Description of partial defective bearing contour

下载: 全尺寸图片幻灯片

图 2 轴承外圈矩形缺陷轮廓表征

Figure 2. Characterization of rectangular defect contour of bearing outer ring

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图 3 轴承外圈三角形缺陷轮廓表征

Figure 3. Characterization of triangular defect contour of bearing outer ring

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图 4 轴承外圈梯形缺陷轮廓表征

Figure 4. Characterization of trapezoidal defect contour of bearing outer ring

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图 5 滚动体与故障边缘碰撞简化图

Figure 5. Simplified diagram of collision between rolling element and fault edge

下载: 全尺寸图片幻灯片

图 6 瞬时冲击力与缺陷尺寸和轴承转速之间的关系

Figure 6. Relationship between instantaneous impact force and defect size and bearing speed

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图 7 角接触球轴承外圈故障简化模型

Figure 7. Simplified model of ACBB with outer ring defect

下载: 全尺寸图片幻灯片

图 8 实验台^[23]

1 柔性联轴器；2 左侧轴承座；3 转速传感器；4 主轴；5 质量盘；6 加速度传感器；7 右侧轴承座；8 预紧力显示液压表；9 驱动电动机；10 传动带。

Figure 8. Experiment platform^[23]

下载: 全尺寸图片幻灯片

图 9 未考虑冲击力的外圈故障振动响应

Figure 9. Vibration response of outer ring defect without impact force

下载: 全尺寸图片幻灯片

图 10 考虑冲击力的外圈故障振动响应

Figure 10. Vibration response of outer ring defect with impact force

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图 11 不同缺陷尺寸时的轴承动力学模型外圈故障振动响应

Figure 11. Dynamic model of bearing with different defect sizes and vibration response of outer ring defect

下载: 全尺寸图片幻灯片

图 12 不同载荷时的轴承动力学模型外圈故障振动响应

Figure 12. Dynamic model of bearing with different preloads and vibration response of outer ring fault

下载: 全尺寸图片幻灯片

图 13 不同转速时的轴承动力学模型外圈故障振动响应

Figure 13. Dynamic model of bearing under different speeds and vibration response of outer ring fault

下载: 全尺寸图片幻灯片

表 1 HRB7206AC轴承基本参数

Table 1. HRB7206AC bearing parameters

参数数值

内圈直径d_i/mm 30

外圈直径d_o/mm 62

滚动体直径D/mm 9.525

滚动体个数Z/个 12

轴承宽度w/mm 16

初始接触角α₀/（°） 25

下载: 导出CSV

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