Effect of rolling bearing parameters on the nonlinear dynamics of offset rotor

Author:

Liang Mingxuan1ORCID,Yan Tianhong1,Hu Jianhong1,Chen Zhongli1

Affiliation:

1. College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou, China

Abstract

Nonlinear vibration of rotating machinery induced by rolling bearings has gradually become a research issue. In many cases, the rotor discs are not always installed in middle of shaft in actual rotor system, and the influence of disc offset on nonlinear vibration needs to be studied in depth as rotating speed increases. This study deals with the effect mechanism of rotor offset on nonlinear dynamic responses. Nonlinear vibration model of offset rotor is established based on finite element method, and the disc offset position along rotor shaft is concerned. The responses are calculated by Newmark-β integration method, which are also validated by an experimental rig, and the influences of nonlinear parameters of rolling bearings are investigated. The results indicate that disc offset is a crucial factor that can induce more complex nonlinearity coupled with rolling bearing under high-speed conditions.

Publisher

SAGE Publications

Subject

Mechanical Engineering

Cited by 8 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. A parametric study of a bolted joint rotor-bearing system with an unbalanced offset disk;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science;2024-01-06

2. Experimental Verification and Nonlinear Dynamic Response Analysis of a Rolling Element Bearing with Localized Defects;Journal of Failure Analysis and Prevention;2022-08

3. Study the micro chaotic phenomena and its control of rigid-flexible robot;Journal of Mechanical Science and Technology;2022-04-29

4. Mistuning parameter identification and vibration localization analysis of the integration rotor;Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering;2021-11-14

5. Analysis on vibration response of bearing coupling faults in rotor-bearing system;IOP Conference Series: Materials Science and Engineering;2021-11-01

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