Fault Signal Emulation of Marine Turbo-Rotating Systems Based on Rotor-Gear Dynamic Interaction Modeling
Rotating machinery is essential in various industrial fields, and growing demands for high performance under harsh operating conditions have heightened interest in fault diagnosis and prognostic technologies. However, a major challenge in fault diagnosis research lies in the scarcity of data, primar...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-07-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/7/1321 |
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| author | Seong Hyeon Kim Hyun Min Song Se Hyeon Jeong Won Joon Lee Sun Je Kim |
| author_facet | Seong Hyeon Kim Hyun Min Song Se Hyeon Jeong Won Joon Lee Sun Je Kim |
| author_sort | Seong Hyeon Kim |
| collection | DOAJ |
| description | Rotating machinery is essential in various industrial fields, and growing demands for high performance under harsh operating conditions have heightened interest in fault diagnosis and prognostic technologies. However, a major challenge in fault diagnosis research lies in the scarcity of data, primarily due to the inability to deliberately introduce faults into machines during actual operation. In this study, a physical model is proposed to realistically simulate the system behavior of a ship’s turbo-rotating machinery by coupling the torsional and lateral vibrations of the rotor. While previous studies employed simplified single-shaft models, the proposed model adopted gear mesh interactions to reflect the coupling behavior between shafts. Furthermore, the time-domain response of the system is analyzed through state-space transformation. The proposed model was applied to simulate imbalance and gear teeth damage conditions that may occur in marine turbo-rotating systems and the results were compared with those under normal operating conditions. The analysis confirmed that the model effectively reproduces fault-induced dynamic characteristics. By enabling rapid implementation of various fault conditions and efficient data acquisition data, the proposed model is expected to contribute to enhancing the reliability of fault diagnosis and prognostic research. |
| format | Article |
| id | doaj-art-8715fcc495af40c19f1e79f6b02b2ede |
| institution | DOAJ |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-8715fcc495af40c19f1e79f6b02b2ede2025-08-20T02:45:42ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-07-01137132110.3390/jmse13071321Fault Signal Emulation of Marine Turbo-Rotating Systems Based on Rotor-Gear Dynamic Interaction ModelingSeong Hyeon Kim0Hyun Min Song1Se Hyeon Jeong2Won Joon Lee3Sun Je Kim4Department of Autonomous Vehicle System Engineering, Chungnam National University, Daejeon 34134, Republic of KoreaDepartment of Autonomous Vehicle System Engineering, Chungnam National University, Daejeon 34134, Republic of KoreaDepartment of Autonomous Vehicle System Engineering, Chungnam National University, Daejeon 34134, Republic of KoreaHanwha Ocean Co., Ltd., Seoul 04527, Republic of KoreaDepartment of Autonomous Vehicle System Engineering, Chungnam National University, Daejeon 34134, Republic of KoreaRotating machinery is essential in various industrial fields, and growing demands for high performance under harsh operating conditions have heightened interest in fault diagnosis and prognostic technologies. However, a major challenge in fault diagnosis research lies in the scarcity of data, primarily due to the inability to deliberately introduce faults into machines during actual operation. In this study, a physical model is proposed to realistically simulate the system behavior of a ship’s turbo-rotating machinery by coupling the torsional and lateral vibrations of the rotor. While previous studies employed simplified single-shaft models, the proposed model adopted gear mesh interactions to reflect the coupling behavior between shafts. Furthermore, the time-domain response of the system is analyzed through state-space transformation. The proposed model was applied to simulate imbalance and gear teeth damage conditions that may occur in marine turbo-rotating systems and the results were compared with those under normal operating conditions. The analysis confirmed that the model effectively reproduces fault-induced dynamic characteristics. By enabling rapid implementation of various fault conditions and efficient data acquisition data, the proposed model is expected to contribute to enhancing the reliability of fault diagnosis and prognostic research.https://www.mdpi.com/2077-1312/13/7/1321rotating machineryfault diagnosismulti-shaft systemlumped inertia methodstate-space modelsimulation |
| spellingShingle | Seong Hyeon Kim Hyun Min Song Se Hyeon Jeong Won Joon Lee Sun Je Kim Fault Signal Emulation of Marine Turbo-Rotating Systems Based on Rotor-Gear Dynamic Interaction Modeling Journal of Marine Science and Engineering rotating machinery fault diagnosis multi-shaft system lumped inertia method state-space model simulation |
| title | Fault Signal Emulation of Marine Turbo-Rotating Systems Based on Rotor-Gear Dynamic Interaction Modeling |
| title_full | Fault Signal Emulation of Marine Turbo-Rotating Systems Based on Rotor-Gear Dynamic Interaction Modeling |
| title_fullStr | Fault Signal Emulation of Marine Turbo-Rotating Systems Based on Rotor-Gear Dynamic Interaction Modeling |
| title_full_unstemmed | Fault Signal Emulation of Marine Turbo-Rotating Systems Based on Rotor-Gear Dynamic Interaction Modeling |
| title_short | Fault Signal Emulation of Marine Turbo-Rotating Systems Based on Rotor-Gear Dynamic Interaction Modeling |
| title_sort | fault signal emulation of marine turbo rotating systems based on rotor gear dynamic interaction modeling |
| topic | rotating machinery fault diagnosis multi-shaft system lumped inertia method state-space model simulation |
| url | https://www.mdpi.com/2077-1312/13/7/1321 |
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