STUDY ON VIBRATION CHARACTERISTICS OF ROTOR SYSTEM WITH COUPLING FAULT OF DISC⁃SHAFT LOOSENESS AND RUBBING
During the operation of the rotor system,parts may fall and loose,resulting in rubbing between the external object and the rotor shaft.To solve this problem,a finite element model of rotor systems with coupling fault was established by considering the case that disc⁃shaft loosening and rubbing occur...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2024-08-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2024.04.001 |
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| author | TIAN DanYang LI ZhiNong ZHOU ShiJian LI YunLong |
| author_facet | TIAN DanYang LI ZhiNong ZHOU ShiJian LI YunLong |
| author_sort | TIAN DanYang |
| collection | DOAJ |
| description | During the operation of the rotor system,parts may fall and loose,resulting in rubbing between the external object and the rotor shaft.To solve this problem,a finite element model of rotor systems with coupling fault was established by considering the case that disc⁃shaft loosening and rubbing occur simultaneously.Ansys was employed to simulate the rotor system.The influence of the looseness on the vibration characteristics of the rotor system was analyzed.Experiments were carried out to verify the simulation results.The results show that the time⁃domain waveform of the rotor system changes periodically,and the spectrogram mainly contains the first harmonic component.With the aggravation of the looseness,high frequency components gradually appear in the spectrum.The initial value of the speed difference of the disc⁃shaft in the start⁃up phase gradually increases with the aggravation of the loosening.The vibration amplitude of the disc center trajectory in the vertical direction also increases with the aggravation of the looseness,and the orbit shape becomes more complex.Due to the influence of the rubbing,the vibration in the vertical direction is obviously suppressed,and its amplitude is smaller than that in the horizontal direction.The research results have very important reference value for the study on dynamic characteristics of rotor systems with coupling faults. |
| format | Article |
| id | doaj-art-bf05b974ae3c4c6eaa9f1a35851f7c2f |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2024-08-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-bf05b974ae3c4c6eaa9f1a35851f7c2f2025-01-15T02:45:52ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692024-08-014676377079314183STUDY ON VIBRATION CHARACTERISTICS OF ROTOR SYSTEM WITH COUPLING FAULT OF DISC⁃SHAFT LOOSENESS AND RUBBINGTIAN DanYangLI ZhiNongZHOU ShiJianLI YunLongDuring the operation of the rotor system,parts may fall and loose,resulting in rubbing between the external object and the rotor shaft.To solve this problem,a finite element model of rotor systems with coupling fault was established by considering the case that disc⁃shaft loosening and rubbing occur simultaneously.Ansys was employed to simulate the rotor system.The influence of the looseness on the vibration characteristics of the rotor system was analyzed.Experiments were carried out to verify the simulation results.The results show that the time⁃domain waveform of the rotor system changes periodically,and the spectrogram mainly contains the first harmonic component.With the aggravation of the looseness,high frequency components gradually appear in the spectrum.The initial value of the speed difference of the disc⁃shaft in the start⁃up phase gradually increases with the aggravation of the loosening.The vibration amplitude of the disc center trajectory in the vertical direction also increases with the aggravation of the looseness,and the orbit shape becomes more complex.Due to the influence of the rubbing,the vibration in the vertical direction is obviously suppressed,and its amplitude is smaller than that in the horizontal direction.The research results have very important reference value for the study on dynamic characteristics of rotor systems with coupling faults.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2024.04.001Rotor systemRubbingCoupling faultVibration characteristicsDisk-shaft loosening |
| spellingShingle | TIAN DanYang LI ZhiNong ZHOU ShiJian LI YunLong STUDY ON VIBRATION CHARACTERISTICS OF ROTOR SYSTEM WITH COUPLING FAULT OF DISC⁃SHAFT LOOSENESS AND RUBBING Jixie qiangdu Rotor system Rubbing Coupling fault Vibration characteristics Disk-shaft loosening |
| title | STUDY ON VIBRATION CHARACTERISTICS OF ROTOR SYSTEM WITH COUPLING FAULT OF DISC⁃SHAFT LOOSENESS AND RUBBING |
| title_full | STUDY ON VIBRATION CHARACTERISTICS OF ROTOR SYSTEM WITH COUPLING FAULT OF DISC⁃SHAFT LOOSENESS AND RUBBING |
| title_fullStr | STUDY ON VIBRATION CHARACTERISTICS OF ROTOR SYSTEM WITH COUPLING FAULT OF DISC⁃SHAFT LOOSENESS AND RUBBING |
| title_full_unstemmed | STUDY ON VIBRATION CHARACTERISTICS OF ROTOR SYSTEM WITH COUPLING FAULT OF DISC⁃SHAFT LOOSENESS AND RUBBING |
| title_short | STUDY ON VIBRATION CHARACTERISTICS OF ROTOR SYSTEM WITH COUPLING FAULT OF DISC⁃SHAFT LOOSENESS AND RUBBING |
| title_sort | study on vibration characteristics of rotor system with coupling fault of disc⁃shaft looseness and rubbing |
| topic | Rotor system Rubbing Coupling fault Vibration characteristics Disk-shaft loosening |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2024.04.001 |
| work_keys_str_mv | AT tiandanyang studyonvibrationcharacteristicsofrotorsystemwithcouplingfaultofdiscshaftloosenessandrubbing AT lizhinong studyonvibrationcharacteristicsofrotorsystemwithcouplingfaultofdiscshaftloosenessandrubbing AT zhoushijian studyonvibrationcharacteristicsofrotorsystemwithcouplingfaultofdiscshaftloosenessandrubbing AT liyunlong studyonvibrationcharacteristicsofrotorsystemwithcouplingfaultofdiscshaftloosenessandrubbing |