An Investigation of Vibrations of a Flexible Rotor System with the Unbalanced Force and Time-Varying Bearing Force
Abstract Unbalanced force produced by the unbalanced mass will affect vibrations of rotor systems, which probably results in the components failures of rotating machinery. To study the effects of unbalanced mass on the vibration characteristics of rotor systems, a flexible rotor system model conside...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-03-01
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| Series: | Chinese Journal of Mechanical Engineering |
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| Online Access: | https://doi.org/10.1186/s10033-025-01186-x |
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| _version_ | 1850029863545602048 |
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| author | Yajun Xu Jing Liu Xinbin Li Changke Tang |
| author_facet | Yajun Xu Jing Liu Xinbin Li Changke Tang |
| author_sort | Yajun Xu |
| collection | DOAJ |
| description | Abstract Unbalanced force produced by the unbalanced mass will affect vibrations of rotor systems, which probably results in the components failures of rotating machinery. To study the effects of unbalanced mass on the vibration characteristics of rotor systems, a flexible rotor system model considering the unbalanced mass is proposed. The time-varying bearing force is considered. The developed model is verified by the experimental and theoretical frequency spectrums. The displacements and axis orbits of flexible and rigid rotor systems are compared. The results show that the unbalanced mass will affect the vibration characteristics of rotor system. This model can be more suitable and effective to calculate vibration characteristics of rotor system with the flexible deformation and unbalanced mass. This paper provides a new reference and research method for predicting the vibrations of flexible rotor system considering the unbalanced mass. |
| format | Article |
| id | doaj-art-8cbb5134ebea492995691514d70539ef |
| institution | DOAJ |
| issn | 2192-8258 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Chinese Journal of Mechanical Engineering |
| spelling | doaj-art-8cbb5134ebea492995691514d70539ef2025-08-20T02:59:23ZengSpringerOpenChinese Journal of Mechanical Engineering2192-82582025-03-0138111310.1186/s10033-025-01186-xAn Investigation of Vibrations of a Flexible Rotor System with the Unbalanced Force and Time-Varying Bearing ForceYajun Xu0Jing Liu1Xinbin Li2Changke Tang3School of Marine Science and Technology, Northwestern Polytechnical UniversitySchool of Marine Science and Technology, Northwestern Polytechnical UniversitySchool of Marine Science and Technology, Northwestern Polytechnical UniversityCollege of Mechanical Engineering, Chongqing UniversityAbstract Unbalanced force produced by the unbalanced mass will affect vibrations of rotor systems, which probably results in the components failures of rotating machinery. To study the effects of unbalanced mass on the vibration characteristics of rotor systems, a flexible rotor system model considering the unbalanced mass is proposed. The time-varying bearing force is considered. The developed model is verified by the experimental and theoretical frequency spectrums. The displacements and axis orbits of flexible and rigid rotor systems are compared. The results show that the unbalanced mass will affect the vibration characteristics of rotor system. This model can be more suitable and effective to calculate vibration characteristics of rotor system with the flexible deformation and unbalanced mass. This paper provides a new reference and research method for predicting the vibrations of flexible rotor system considering the unbalanced mass.https://doi.org/10.1186/s10033-025-01186-xFlexible rotorUnbalanced forceRotor dynamicNonlinear vibration |
| spellingShingle | Yajun Xu Jing Liu Xinbin Li Changke Tang An Investigation of Vibrations of a Flexible Rotor System with the Unbalanced Force and Time-Varying Bearing Force Chinese Journal of Mechanical Engineering Flexible rotor Unbalanced force Rotor dynamic Nonlinear vibration |
| title | An Investigation of Vibrations of a Flexible Rotor System with the Unbalanced Force and Time-Varying Bearing Force |
| title_full | An Investigation of Vibrations of a Flexible Rotor System with the Unbalanced Force and Time-Varying Bearing Force |
| title_fullStr | An Investigation of Vibrations of a Flexible Rotor System with the Unbalanced Force and Time-Varying Bearing Force |
| title_full_unstemmed | An Investigation of Vibrations of a Flexible Rotor System with the Unbalanced Force and Time-Varying Bearing Force |
| title_short | An Investigation of Vibrations of a Flexible Rotor System with the Unbalanced Force and Time-Varying Bearing Force |
| title_sort | investigation of vibrations of a flexible rotor system with the unbalanced force and time varying bearing force |
| topic | Flexible rotor Unbalanced force Rotor dynamic Nonlinear vibration |
| url | https://doi.org/10.1186/s10033-025-01186-x |
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