Damage Detection in a Rotor Dynamic System by Monitoring Nonlinear Vibrations and Antiresonances of Higher Orders
Since rotor systems are very sensitive and vulnerable to transverse crack, early detection of damage is of paramount importance and essential for rotating machinery. Therefore, one of the main issues is to identify robust characteristics of the rotor vibration response that can be directly attribute...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/23/11904 |
| _version_ | 1797463680888078336 |
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| author | Jean-Jacques Sinou |
| author_facet | Jean-Jacques Sinou |
| author_sort | Jean-Jacques Sinou |
| collection | DOAJ |
| description | Since rotor systems are very sensitive and vulnerable to transverse crack, early detection of damage is of paramount importance and essential for rotating machinery. Therefore, one of the main issues is to identify robust characteristics of the rotor vibration response that can be directly attributed to the presence of a transverse crack in a rotating shaft, preferably when the crack is small enough, in order to avoid catastrophic failures of rotating machines. This study investigates the potential links between the nonlinear vibrations and the locations of higher-order antiresonances and structural modifications due to the presence of a breathing crack in rotor systems. Using the proposed numerical results on the evolution of the nonlinear responses of a cracked rotor system, it was observed that a robust diagnostic of the presence of slight damage can be conducted by tracking nonlinear vibrational measurements, with particular attention to the antiresonance behavior of higher orders. These observations can easily serve as target observations for the monitoring system and for identifying the positions of damage at an early stage. |
| first_indexed | 2024-03-09T17:54:12Z |
| format | Article |
| id | doaj.art-624d794a0be94b91844ac49157aec3ed |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T17:54:12Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-624d794a0be94b91844ac49157aec3ed2023-11-24T10:27:44ZengMDPI AGApplied Sciences2076-34172022-11-0112231190410.3390/app122311904Damage Detection in a Rotor Dynamic System by Monitoring Nonlinear Vibrations and Antiresonances of Higher OrdersJean-Jacques Sinou0Laboratoire de Tribologie et Dynamique des Systèmes UMR CNRS 5513, École Centrale de Lyon, 36 Avenue Guy de Collongue, 69134 Écully, FranceSince rotor systems are very sensitive and vulnerable to transverse crack, early detection of damage is of paramount importance and essential for rotating machinery. Therefore, one of the main issues is to identify robust characteristics of the rotor vibration response that can be directly attributed to the presence of a transverse crack in a rotating shaft, preferably when the crack is small enough, in order to avoid catastrophic failures of rotating machines. This study investigates the potential links between the nonlinear vibrations and the locations of higher-order antiresonances and structural modifications due to the presence of a breathing crack in rotor systems. Using the proposed numerical results on the evolution of the nonlinear responses of a cracked rotor system, it was observed that a robust diagnostic of the presence of slight damage can be conducted by tracking nonlinear vibrational measurements, with particular attention to the antiresonance behavior of higher orders. These observations can easily serve as target observations for the monitoring system and for identifying the positions of damage at an early stage.https://www.mdpi.com/2076-3417/12/23/11904structural health monitoringrotordamagetransverse breathing cracknonlinear vibrationantiresonances |
| spellingShingle | Jean-Jacques Sinou Damage Detection in a Rotor Dynamic System by Monitoring Nonlinear Vibrations and Antiresonances of Higher Orders Applied Sciences structural health monitoring rotor damage transverse breathing crack nonlinear vibration antiresonances |
| title | Damage Detection in a Rotor Dynamic System by Monitoring Nonlinear Vibrations and Antiresonances of Higher Orders |
| title_full | Damage Detection in a Rotor Dynamic System by Monitoring Nonlinear Vibrations and Antiresonances of Higher Orders |
| title_fullStr | Damage Detection in a Rotor Dynamic System by Monitoring Nonlinear Vibrations and Antiresonances of Higher Orders |
| title_full_unstemmed | Damage Detection in a Rotor Dynamic System by Monitoring Nonlinear Vibrations and Antiresonances of Higher Orders |
| title_short | Damage Detection in a Rotor Dynamic System by Monitoring Nonlinear Vibrations and Antiresonances of Higher Orders |
| title_sort | damage detection in a rotor dynamic system by monitoring nonlinear vibrations and antiresonances of higher orders |
| topic | structural health monitoring rotor damage transverse breathing crack nonlinear vibration antiresonances |
| url | https://www.mdpi.com/2076-3417/12/23/11904 |
| work_keys_str_mv | AT jeanjacquessinou damagedetectioninarotordynamicsystembymonitoringnonlinearvibrationsandantiresonancesofhigherorders |