Theoretical Model and Experimental Study on Influence of Bearing Inner Clearance on Bearing Vibration

WANG Kai; JIANG Shengfei; HU Bo; ZHANG Xiaodong

doi:10.13433/j.cnki.1003-8728.20230073

Volume 42 Issue 1

Jan. 2023

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Article Navigation > Mechanical Science and Technology for Aerospace Engineering > 2023 > 42(1): 67-74

WANG Kai, JIANG Shengfei, HU Bo, ZHANG Xiaodong. Theoretical Model and Experimental Study on Influence of Bearing Inner Clearance on Bearing Vibration[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(1): 67-74. doi: 10.13433/j.cnki.1003-8728.20230073

Citation:

WANG Kai, JIANG Shengfei, HU Bo, ZHANG Xiaodong. Theoretical Model and Experimental Study on Influence of Bearing Inner Clearance on Bearing Vibration[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(1): 67-74. doi: 10.13433/j.cnki.1003-8728.20230073

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Theoretical Model and Experimental Study on Influence of Bearing Inner Clearance on Bearing Vibration

doi: 10.13433/j.cnki.1003-8728.20230073

1.
Department of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu 610059, China
2.
PetroChina Southwest Oil and Gas Field Company, Luzhou 646000, Sichuan, China
3.
College of Mechanical and Electrical Engineering, Southwest Petroleum University, Chengdu 610500, China

Received Date: 2020-03-08
Publish Date: 2023-01-25

Abstract

Abstract

During the installation and operation of transmission equipment, there always are bearing clearance problems, which is also one of the main reasons for bearing failure. Therefore, the research on the bearing clearance has important theoretical significance and engineering value. In order to determine the influence of bearing clearance on bearing vibration, the theoretical model of 2-DOF rolling bearing was established based on the dynamic characteristics of bearing vibration. For the tested bearing, the dynamic characteristics of the rolling bearing is analyzed based on the Hertz-elastic contact theory. It is known that the number of balance points of the inner ring of the bearing depends on the clearance of the bearing. When there is a gap (e < 4.5 μm) in the bearing, there is the stable equilibrium point, and near the center of the balance point, there is periodic vibration in the inner ring of the bearing. When there is a gap(e≥4.5 μm), as the gap and the rotational speed of the bearing increase continuously, the system will generate chaotic vibration, and the area where chaotic vibration occurs is also increasing. At the same time, the experimental results of the Ø127 rolling bearing shows that under the same damping parameters, bearing size and rotational speed, the results of the singular attractors obtained from the experimental data are close to those obtained by solving the equation of motion. This qualitative result not only confirms the existence of bearing chaotic behavior, but also verifies the reliability of the theoretical model.
- bearing clearance,
- chaos,
- dynamics,
- test verification

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References(13)

References

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