Efficient study on the influence of compressor casing configuration on aeroelastic stability using multi-passage energy method
This study investigated the influence of casing profiles on the aeroelastic stability of a transonic compressor rotor. To elucidate the influence of casing profiles on aerodynamic damping (AD) and delve into more detailed insights, the influence coefficient method and phase-shift theory were incorpo...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-06-01
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| Series: | Propulsion and Power Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212540X25000227 |
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| author | Xin Zhao Le Han Dasheng Wei |
| author_facet | Xin Zhao Le Han Dasheng Wei |
| author_sort | Xin Zhao |
| collection | DOAJ |
| description | This study investigated the influence of casing profiles on the aeroelastic stability of a transonic compressor rotor. To elucidate the influence of casing profiles on aerodynamic damping (AD) and delve into more detailed insights, the influence coefficient method and phase-shift theory were incorporated into the conventional energy method to establish the multi-passage energy method. The unsteady pressure was calculated using the influence coefficient method and the outcomes at various nodal diameters (NDs) were reconstructed based on the phase-shift theory. Thus, the multi-passage energy method offers more comprehensive information than the conventional energy method, the aeroelastic eigenvalue method, and the coupled fluid-structure interaction method. Four casing profiles were simulated. In contrast to the straight casing configuration, the concave shrinking casing was found to be detrimental to aeroelastic stability. The convex shrinking casing can alleviate the blockage in the tip flow field and improve both the aerodynamic performance and aeroelastic stability. The multi-passage energy method further revealed that the AD is contributed by the blade itself and the adjacent blades. In comparison to the straight casing, the convex shrinking casing not only enhances the AD of the blade itself but also diminishes the AD fluctuation of the adjacent blades. Consequently, the minimum AD is increased. |
| format | Article |
| id | doaj-art-620d0d50ee8541c0bf28e4db0eb3463d |
| institution | DOAJ |
| issn | 2212-540X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Propulsion and Power Research |
| spelling | doaj-art-620d0d50ee8541c0bf28e4db0eb3463d2025-08-20T02:40:48ZengKeAi Communications Co., Ltd.Propulsion and Power Research2212-540X2025-06-0114224325810.1016/j.jppr.2025.05.002Efficient study on the influence of compressor casing configuration on aeroelastic stability using multi-passage energy methodXin Zhao0Le Han1Dasheng Wei2Research Institute of Aero-Engine, Beihang University, Beijing 102206, ChinaResearch Institute of Aero-Engine, Beihang University, Beijing 102206, China; Corresponding author.School of Energy and Power Engineering, Beihang University, Beijing 102206, ChinaThis study investigated the influence of casing profiles on the aeroelastic stability of a transonic compressor rotor. To elucidate the influence of casing profiles on aerodynamic damping (AD) and delve into more detailed insights, the influence coefficient method and phase-shift theory were incorporated into the conventional energy method to establish the multi-passage energy method. The unsteady pressure was calculated using the influence coefficient method and the outcomes at various nodal diameters (NDs) were reconstructed based on the phase-shift theory. Thus, the multi-passage energy method offers more comprehensive information than the conventional energy method, the aeroelastic eigenvalue method, and the coupled fluid-structure interaction method. Four casing profiles were simulated. In contrast to the straight casing configuration, the concave shrinking casing was found to be detrimental to aeroelastic stability. The convex shrinking casing can alleviate the blockage in the tip flow field and improve both the aerodynamic performance and aeroelastic stability. The multi-passage energy method further revealed that the AD is contributed by the blade itself and the adjacent blades. In comparison to the straight casing, the convex shrinking casing not only enhances the AD of the blade itself but also diminishes the AD fluctuation of the adjacent blades. Consequently, the minimum AD is increased.http://www.sciencedirect.com/science/article/pii/S2212540X25000227Aeroelastic stabilityMulti-passage energy methodNodal diameterCasing profilesAerodynamic damping |
| spellingShingle | Xin Zhao Le Han Dasheng Wei Efficient study on the influence of compressor casing configuration on aeroelastic stability using multi-passage energy method Propulsion and Power Research Aeroelastic stability Multi-passage energy method Nodal diameter Casing profiles Aerodynamic damping |
| title | Efficient study on the influence of compressor casing configuration on aeroelastic stability using multi-passage energy method |
| title_full | Efficient study on the influence of compressor casing configuration on aeroelastic stability using multi-passage energy method |
| title_fullStr | Efficient study on the influence of compressor casing configuration on aeroelastic stability using multi-passage energy method |
| title_full_unstemmed | Efficient study on the influence of compressor casing configuration on aeroelastic stability using multi-passage energy method |
| title_short | Efficient study on the influence of compressor casing configuration on aeroelastic stability using multi-passage energy method |
| title_sort | efficient study on the influence of compressor casing configuration on aeroelastic stability using multi passage energy method |
| topic | Aeroelastic stability Multi-passage energy method Nodal diameter Casing profiles Aerodynamic damping |
| url | http://www.sciencedirect.com/science/article/pii/S2212540X25000227 |
| work_keys_str_mv | AT xinzhao efficientstudyontheinfluenceofcompressorcasingconfigurationonaeroelasticstabilityusingmultipassageenergymethod AT lehan efficientstudyontheinfluenceofcompressorcasingconfigurationonaeroelasticstabilityusingmultipassageenergymethod AT dashengwei efficientstudyontheinfluenceofcompressorcasingconfigurationonaeroelasticstabilityusingmultipassageenergymethod |