考虑离心膨胀的双级串联轴承油膜刚度和阻尼

doi:10.13229/j.cnki.jdxbgxb20200850

吉林大学学报(工学版) ›› 2021, Vol. 51 ›› Issue (5): 1601-1611.doi: 10.13229/j.cnki.jdxbgxb20200850

• 车辆工程·机械工程 • 上一篇

考虑离心膨胀的双级串联轴承油膜刚度和阻尼

胡晶^1,²(),李聪³,张邦成⁴,乔晓利^1,²,张心明^1,^2,⁵(),周笑平^1,²

^1.长春理工大学机电工程学院，长春 130022
^2.吉林省空气动力科技创新中心，长春 130022
^3.中国航空工业空气动力研究院，哈尔滨 150001
^4.长春工业大学机电工程学院，长春 130022
^5.佛山科学技术学院机电工程与自动化学院，广东佛山 528225

收稿日期:2020-11-05 出版日期:2021-09-01 发布日期:2021-09-16
通讯作者: 张心明 E-mail:hjcust163@163.com;zxmcust163@163.com
作者简介:胡晶（1987-），女，博士研究生.研究方向：精密和超精密加工技术.E-mail：hjcust163@163.com
基金资助:
国家自然科学基金面上项目(61973046);吉林省科技厅项目(20170204008GX)

Oil film stiffness and damping of double⁃decker ball bearing in consideration of centrifugal expansion

Jing HU^1,²(),Cong LI³,Bang-cheng ZHANG⁴,Xiao-li QIAO^1,²,Xin-ming ZHANG^1,^2,⁵(),Xiao-ping ZHOU^1,²

^1.College of Mechanical and Electrical Engineering，Changchun University of Science and Technology，Changchun 130022，China
^2.Jilin Province Innovation Center of Aerodynamic Science and Technology，Changchun 130022，China
^3.AVIC Aerodynaiviics Research Institute，Harbin 150001，China
^4.College of Mechanical and Electrical Engineering，Changchun University of Technology，Changchun 130022，China
^5.School of Mechatronic Engineering and Automation，Foshan University，Foshan 528225，China

Received:2020-11-05 Online:2021-09-01 Published:2021-09-16
Contact: Xin-ming ZHANG E-mail:hjcust163@163.com;zxmcust163@163.com

摘要/Abstract

摘要：

轴承的弹流润滑状况与其动态性能有着密切的关系，对轴承弹流润滑特性的精准计算是轴承转速分析及可靠性设计的关键。为探究双级串联轴承的油膜刚度和阻尼特性，建立了考虑离心膨胀效应后的双级串联轴承拟静力学与弹流润滑分析模型，即离心膨胀影响模型，分析了离心膨胀效应对双级串联球轴承油膜刚度和阻尼的影响规律。研究结果表明：双级串联轴承一、二级轴承的内接触油膜刚度和阻尼随转速的增加而减小；考虑离心膨胀后，油膜刚度有所增加，阻尼减小，且变化率的幅度随转速增加而增大。在邻近高速工况时，考虑离心膨胀的因素能提高计算精度，而一旦转速达到高速区域，离心膨胀效应的影响几乎是不可忽略的。

关键词: 机械设计制造及其自动化, 双级串联轴承, 弹流润滑, 离心膨胀, 拟静力学

Abstract:

The elastohydrodynamic lubrication of ball bearings is closely related to its dynamic performance. The accurate calculation of bearing elastohydrodynamic lubrication is the key to bearing speed analysis and reliability design. In this paper， the quasi-statics and elastohydrodynamic lubrication analysis model considering centrifugal expansion was established， that is， the influence model of centrifugal expansion. The influence of centrifugal expansion effect is analyzed. The results show that the stiffness and damping of the inner contact oil film decrease with the increase of the rotating speed； Considering the centrifugal expansion， the stiffness of the oil film increases and the damping decreases， and the amplitude of the change rate increases with the increase of the rotating speed. When the speed is close to high speed， the calculation accuracy can be improved by considering the centrifugal expansion. However， once the speed enters the high-speed region， the effect of centrifugal expansion can hardly be ignored.

Key words: mechanical design manufacturing and automation, double-decker ball bearing, elastohydrodynamic lubrication, centrifugal expansion, quasi-statics

中图分类号:

TH133.33

胡晶,李聪,张邦成,乔晓利,张心明,周笑平. 考虑离心膨胀的双级串联轴承油膜刚度和阻尼[J]. 吉林大学学报(工学版), 2021, 51(5): 1601-1611.

Jing HU,Cong LI,Bang-cheng ZHANG,Xiao-li QIAO,Xin-ming ZHANG,Xiao-ping ZHOU. Oil film stiffness and damping of double⁃decker ball bearing in consideration of centrifugal expansion[J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(5): 1601-1611.

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参数	数值
参数	71901C	71905C
球径/mm	3	4.25
初始接触角/（°）	15	15
球的个数	17	21
内圈沟曲率半径系数	0.515	0.525
外圈沟曲率半径系数	0.515	0.525
节径/mm	18	33.5

转速/（r·min^-1）	IK_max/%	OK_max/%	IC_max/%	OC_max/%
10 000	2.189 82	0.064 41	0.482 97	0.014 02
12 000	3.135 92	0.093 42	0.695 72	0.020 34
14 000	4.240 43	0.128 13	0.947 32	0.027 90
16 000	5.496 68	0.168 64	1.237 81	0.036 73
18 000	6.897 09	0.214 98	1.567 24	0.046 84
20 000	8.433 19	0.267 10	1.935 59	0.058 22
22 000	10.095 73	0.324 85	2.342 84	0.070 83
24 000	11.874 69	0.388 05	2.788 89	0.084 64
26 000	13.759 41	0.456 48	3.273 57	0.099 61
28 000	15.738 66	0.529 98	3.796 66	0.115 70
30 000	17.800 77	0.608 42	4.357 79	0.132 89
32 000	19.933 71	0.691 75	4.956 53	0.151 16
34 000	22.125 29	0.779 98	5.592 31	0.170 54
36 000	24.363 28	0.873 17	6.264 43	0.191 02

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考虑离心膨胀的双级串联轴承油膜刚度和阻尼

Oil film stiffness and damping of double⁃decker ball bearing in consideration of centrifugal expansion

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