Sensitivity Analysis of Deep Groove Ball Bearings with Coupling Misalignment

doi:10.12068/j.issn.1005-3026.2025.20230225

Abstract

Abstract:

To address the anomalous vibrations potentially caused by improper bearing installation in rotating machinery， the effects of bearings’ coupling misalignment on the contact forces and vibration responses of ball bearings were analyzed. A mechanical model for deep groove ball bearings was developed， considering the axial， parallel， and angular misalignments in the outer ring. Sensitivities of the raceway contact forces and rotor vibration responses to these three types of misalignments were evaluated through the orthogonal experimental design. The results showed that， when all the three misalignments coexist， parallel misalignment exhibits the highest sensitivity to both contact forces and vibration responses， while axial misalignment demonstrates the lowest sensitivity.

Key words: coupling misalignment, deep groove ball bearing, orthogonal experimental design, contact force, vibration response

CLC Number:

TH 113.1

Ming LIU, Peng-fei WANG, Hong GUAN, Hui MA. Sensitivity Analysis of Deep Groove Ball Bearings with Coupling Misalignment[J]. Journal of Northeastern University(Natural Science), 2025, 46(1): 83-91.

Figures/Tables 24

References 19

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参数	值
内滚道半径r_b/mm	62.18
外滚道半径R_b/mm	82.82
滚珠直径d_b/mm	10.319
滚珠个数N_b	13
轴承径向间隙c_r/μm	8
内、外滚道曲率半径系数f_i, f_o	0.517
初始接触角α₀/（º）	0

参数	值
内滚道半径r_b/mm	62.18
外滚道半径R_b/mm	82.82
滚珠直径d_b/mm	10.319
滚珠个数N_b	13
轴承径向间隙c_r/μm	8
内、外滚道曲率半径系数f_i, f_o	0.517
初始接触角α₀/（º）	0

因素	水平
因素	1	2	3	4
S_a/μm	10	20	30	40
S_r/μm	5	10	15	20
φ_o/（º）	0.02	0.04	0.06	0.08

因素	水平
因素	1	2	3	4
S_a/μm	10	20	30	40
S_r/μm	5	10	15	20
φ_o/（º）	0.02	0.04	0.06	0.08

试验号	S_a/μm	S_r/μm	φ_o/（º）	最大接触力/N	X加速度峰峰值/（m·s^-2）	Y加速度峰峰值/（m·s^-2）	Z加速度峰峰值/（m·s^-2）
1	10	5	0.02	57.3	2.855	2.990	0.106
2	10	10	0.04	113.8	3.858	5.365	0.329
3	10	15	0.06	177.6	5.947	9.966	0.791
4	10	20	0.08	249.7	8.788	13.990	1.310
5	20	5	0.04	77.3	2.449	4.334	0.306
6	20	10	0.02	107.7	3.466	5.789	0.303
7	20	15	0.08	219.3	7.593	13.710	1.548
8	20	20	0.06	234.7	8.323	11.520	1.215
9	30	5	0.06	111.6	3.870	5.587	0.625
10	30	10	0.08	190.2	6.697	10.900	1.381
11	30	15	0.02	157.4	5.655	7.829	0.543
12	30	20	0.04	220.8	7.678	11.420	1.067
13	40	5	0.08	162.3	5.467	8.887	1.229
14	40	10	0.06	172.4	6.030	9.263	1.150
15	40	15	0.04	187.2	7.060	9.822	1.068
16	40	20	0.02	206.7	8.100	8.763	1.011