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| Structure Strength Analysis and Optimization Design of Magnetic Levitation Air Compressor Impeller |
| Received:November 22, 2024 |
| DOI：10.11980/j.issn.0254-508X.2025.05.021 |
| Key Words:magnetic levitation air compressor impeller structural optimization intensity simulation |
| Fund Project:中国中车集团重大项目“多级磁悬浮空压机关键技术研究及应用”（2023CXA453）。 |
| Author Name | Affiliation | Postcode | | JI Ling* | CRRC Dalian Institute Co., Ltd., Dalian, Liaoning Province, 116000 | 116000 | | LI Yu | CRRC Dalian Institute Co., Ltd., Dalian, Liaoning Province, 116000 | 116000 | | WANG Benyi | CRRC Dalian Institute Co., Ltd., Dalian, Liaoning Province, 116000 | 116000 | | AN Ran | CRRC Dalian Institute Co., Ltd., Dalian, Liaoning Province, 116000 | 116000 | | QIAO Wei | CRRC Dalian Institute Co., Ltd., Dalian, Liaoning Province, 116000 | 116000 | | YU Bin | CRRC Dalian Institute Co., Ltd., Dalian, Liaoning Province, 116000 | 116000 |
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| Abstract:The structural strength of the impeller was analyzed by the finite element analysis method and the influence trend of the impeller structure on the stress and deformation was also discussed based on the semi-open impeller of a magnetic levitation air compressor. According to the influence trend of the impeller structure on the stress and deformation， the impeller wheel thickness， the wheel relative position， the impeller sealing tooth angle， the radius of the back root of the impeller， the radius of the hub and the radius of impeller bore were adjusted. The maximum equivalent stress of the impeller after optimization decreased by 34.5%； the maximum radial stress decreased by 38.7%； maximum circumferential stress decreased by 8.2%； the maximum radial deformation decreased by 16.3%； the maximum axial deformation decreased by 6.1%； the minimum axial deformation decreased by 10.5%. The static strength of the impeller at the highest speed met the requirements of the design criteria， the deformation met the installation requirements， and the structural design of the impeller had good reference significance. |
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