CFD-FEM Analysis of Flow-Induced Vibrations in Waterjet Propulsion Unit
This paper investigates the problem of vibration in an axial flow waterjet propeller with high power density and low specific speed. Based on fluid–structure coupling vibration analysis, combined with modal analysis and ship tests, the unsteady fluid–structure coupling of a waterjet propeller is exa...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/10/8/1032 |
| _version_ | 1797432006115590144 |
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| author | Yuanxing Dai Zhenghao Liu Wei Zhang Jianping Chen Jianguo Liu |
| author_facet | Yuanxing Dai Zhenghao Liu Wei Zhang Jianping Chen Jianguo Liu |
| author_sort | Yuanxing Dai |
| collection | DOAJ |
| description | This paper investigates the problem of vibration in an axial flow waterjet propeller with high power density and low specific speed. Based on fluid–structure coupling vibration analysis, combined with modal analysis and ship tests, the unsteady fluid–structure coupling of a waterjet propeller is examined, and the vibration characteristics of the propeller under different speed conditions are studied. The results show that the vibrations of the waterjet propeller mainly come from the frequency response of the rotor and the structural resonance response. The frequency distribution characteristics and amplitude intensity are observed to increase with increasing rotation speed. The variations in the propeller vibration characteristics, with respect to parameter changes, are analyzed at different gap spacings between the rotor and stator, allowing the variation law of vibration intensity with rotor stator spacing to be obtained. |
| first_indexed | 2024-03-09T09:55:01Z |
| format | Article |
| id | doaj.art-1118623a389f41deb81dfd6967ed064c |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T09:55:01Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-1118623a389f41deb81dfd6967ed064c2023-12-01T23:51:25ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-07-01108103210.3390/jmse10081032CFD-FEM Analysis of Flow-Induced Vibrations in Waterjet Propulsion UnitYuanxing Dai0Zhenghao Liu1Wei Zhang2Jianping Chen3Jianguo Liu4Science and Technology on Water Jet Propulsion Laboratory, Shanghai 200011, ChinaScience and Technology on Water Jet Propulsion Laboratory, Shanghai 200011, ChinaScience and Technology on Water Jet Propulsion Laboratory, Shanghai 200011, ChinaScience and Technology on Water Jet Propulsion Laboratory, Shanghai 200011, ChinaScience and Technology on Water Jet Propulsion Laboratory, Shanghai 200011, ChinaThis paper investigates the problem of vibration in an axial flow waterjet propeller with high power density and low specific speed. Based on fluid–structure coupling vibration analysis, combined with modal analysis and ship tests, the unsteady fluid–structure coupling of a waterjet propeller is examined, and the vibration characteristics of the propeller under different speed conditions are studied. The results show that the vibrations of the waterjet propeller mainly come from the frequency response of the rotor and the structural resonance response. The frequency distribution characteristics and amplitude intensity are observed to increase with increasing rotation speed. The variations in the propeller vibration characteristics, with respect to parameter changes, are analyzed at different gap spacings between the rotor and stator, allowing the variation law of vibration intensity with rotor stator spacing to be obtained.https://www.mdpi.com/2077-1312/10/8/1032waterjet propulsionfluid excitationpressure fluctuationfrequency domain analysisfluid–structure interaction |
| spellingShingle | Yuanxing Dai Zhenghao Liu Wei Zhang Jianping Chen Jianguo Liu CFD-FEM Analysis of Flow-Induced Vibrations in Waterjet Propulsion Unit Journal of Marine Science and Engineering waterjet propulsion fluid excitation pressure fluctuation frequency domain analysis fluid–structure interaction |
| title | CFD-FEM Analysis of Flow-Induced Vibrations in Waterjet Propulsion Unit |
| title_full | CFD-FEM Analysis of Flow-Induced Vibrations in Waterjet Propulsion Unit |
| title_fullStr | CFD-FEM Analysis of Flow-Induced Vibrations in Waterjet Propulsion Unit |
| title_full_unstemmed | CFD-FEM Analysis of Flow-Induced Vibrations in Waterjet Propulsion Unit |
| title_short | CFD-FEM Analysis of Flow-Induced Vibrations in Waterjet Propulsion Unit |
| title_sort | cfd fem analysis of flow induced vibrations in waterjet propulsion unit |
| topic | waterjet propulsion fluid excitation pressure fluctuation frequency domain analysis fluid–structure interaction |
| url | https://www.mdpi.com/2077-1312/10/8/1032 |
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