 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13427 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8178
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| In English (Mech. Solids): | | 5249 |
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| Y.Q. Li, W. Li, C.M. Wen, W.T. Song, and B. Li, "Research on Rub-Impact Vibration of a Bolted Joint Rotor System with Non-Uniform Preload," Mech. Solids. 60 (6), 4717-4742 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
6 |
Pages |
4717-4742 |
| DOI |
10.1134/S0025654425602289 |
| Title |
Research on Rub-Impact Vibration of a Bolted Joint Rotor System with Non-Uniform Preload |
| Author(s) |
Y.Q. Li (School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006 China)
W. Li (School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006 China)
C.M. Wen (School of Electronic Engineering, Guangxi University of Science and Technology, Liuzhou, 545006 China; Engineering Research Center of Advanced Engineering Equipment, University of Guangxi, Liuzhou, 545006 China, cmwen@gxust.edu.cn)
W.T. Song (School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006 China)
B. Li (School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou, 545006 China;Engineering Research Center of Advanced Engineering Equipment, University of Guangxi, Liuzhou, 545006 China; Engineering Research Center of Advanced Design and Manufacturing Technology of Heavy Vehicle Components, Ministry of Education, Guangxi University of Science and Technology, Liuzhou, 545006 China) |
| Abstract |
This paper aims to establish a new dynamic model of a bolted rotor system that takes into account rubbing faults and non-uniform preload, and comprehensively studies and analyzes the effects of rubbing faults and non-uniform preload on the dynamic response of the rotor system. A dynamic model of a bolted joint rotor system is established based on the lumped mass modeling approach. The dynamic response of the rotor system is computed using the Newmark-β numerical integration method. Parametric studies investigate the effects of rubbing faults and non-uniform preload on the system’s dynamical behavior. Results demonstrate that the coupling between rubbing faults and piecewise linear stiffness characteristics exacerbates critical speed reduction while increasing vibration amplitude. Furthermore, experimental validations conducted on a bolted joint rotor system equipped with a rubbing device partially verify the numerically predicted results regarding the effects of non-uniform preload and rubbing faults on rotor dynamic characteristics. This paper draws some conclusions on the dynamics of bolted rotors based on rubbing fault and non-uniform preload by comparing numerical and experimental results, which are of reference value for the motion control and fault diagnosis of bolted rotor systems. |
| Keywords |
Rubbing fault, dynamic analysis, bolted joint rotor, non-uniform preload, piecewise linear stiffness |
| Received |
07 May 2025 | Revised |
08 August 2025 | Accepted |
09 August 2025 |
| Link to Fulltext |
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