Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy
Impellers are crucial components in centrifugal compressors, and their precision and performance determine the compressor’s work efficiency. The traditional impeller error compensation method only compensates for dimensional errors without considering aerodynamic performance, which leads to a perfor...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Alexandria Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016824015266 |
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| _version_ | 1825206986172530688 |
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| author | Tao Zhou Sitong Xiang Hainan Zhang Jianguo Yang |
| author_facet | Tao Zhou Sitong Xiang Hainan Zhang Jianguo Yang |
| author_sort | Tao Zhou |
| collection | DOAJ |
| description | Impellers are crucial components in centrifugal compressors, and their precision and performance determine the compressor’s work efficiency. The traditional impeller error compensation method only compensates for dimensional errors without considering aerodynamic performance, which leads to a performance loss after compensation. This study proposes a novel optimal compensation method for centrifugal impellers that comprehensively considers the aerodynamic performance and dimensional accuracy. First, a nonlinear mapping relationship between the key geometric parameters of the blade and the aerodynamic performance was established. Then, using on-machine measurement data, the impeller machining error was calculated, and a mirror compensation surface was generated. Finally, based on the mapping model, the second-generation non-dominated sorting genetic algorithm was used to optimize the control points of the mirror compensation surface, and thereby obtain the optimal compensation surface. The experimental results showed that, after optimal compensation, the impeller dimensional error was reduced by 90.17 %, the total pressure ratio increased by 2.89 %, and the isentropic efficiency increased by 7.29 %. Compared to the traditional mirror compensation method, the dimensional accuracy, total pressure ratio, and isentropic efficiency were improved by 28.57 %, 1.56 %, and 4.24 %, respectively. Therefore, this compensation method can simultaneously improve the dimensional accuracy and aerodynamic performance of impellers. |
| format | Article |
| id | doaj-art-e1a1394d0ef548ad80f0d7a977321572 |
| institution | Kabale University |
| issn | 1110-0168 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj-art-e1a1394d0ef548ad80f0d7a9773215722025-02-07T04:47:10ZengElsevierAlexandria Engineering Journal1110-01682025-02-011137490Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracyTao Zhou0Sitong Xiang1Hainan Zhang2Jianguo Yang3Faculty of Mechanical Engineering and Mechanics, Ningbo University, Zhejiang 315211, ChinaFaculty of Mechanical Engineering and Mechanics, Ningbo University, Zhejiang 315211, China; Corresponding author.Faculty of Mechanical Engineering and Mechanics, Ningbo University, Zhejiang 315211, ChinaSchool of Mechanical and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Ningbo Kewei Lianchuang CNC Technology Co., Ltd., Ningbo 315400, ChinaImpellers are crucial components in centrifugal compressors, and their precision and performance determine the compressor’s work efficiency. The traditional impeller error compensation method only compensates for dimensional errors without considering aerodynamic performance, which leads to a performance loss after compensation. This study proposes a novel optimal compensation method for centrifugal impellers that comprehensively considers the aerodynamic performance and dimensional accuracy. First, a nonlinear mapping relationship between the key geometric parameters of the blade and the aerodynamic performance was established. Then, using on-machine measurement data, the impeller machining error was calculated, and a mirror compensation surface was generated. Finally, based on the mapping model, the second-generation non-dominated sorting genetic algorithm was used to optimize the control points of the mirror compensation surface, and thereby obtain the optimal compensation surface. The experimental results showed that, after optimal compensation, the impeller dimensional error was reduced by 90.17 %, the total pressure ratio increased by 2.89 %, and the isentropic efficiency increased by 7.29 %. Compared to the traditional mirror compensation method, the dimensional accuracy, total pressure ratio, and isentropic efficiency were improved by 28.57 %, 1.56 %, and 4.24 %, respectively. Therefore, this compensation method can simultaneously improve the dimensional accuracy and aerodynamic performance of impellers.http://www.sciencedirect.com/science/article/pii/S1110016824015266Centrifugal impellerAerodynamic performanceDimensional accuracyOptimal compensation |
| spellingShingle | Tao Zhou Sitong Xiang Hainan Zhang Jianguo Yang Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy Alexandria Engineering Journal Centrifugal impeller Aerodynamic performance Dimensional accuracy Optimal compensation |
| title | Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy |
| title_full | Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy |
| title_fullStr | Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy |
| title_full_unstemmed | Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy |
| title_short | Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy |
| title_sort | optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy |
| topic | Centrifugal impeller Aerodynamic performance Dimensional accuracy Optimal compensation |
| url | http://www.sciencedirect.com/science/article/pii/S1110016824015266 |
| work_keys_str_mv | AT taozhou optimalcompensationmethodforcentrifugalimpellerconsideringaerodynamicperformanceanddimensionalaccuracy AT sitongxiang optimalcompensationmethodforcentrifugalimpellerconsideringaerodynamicperformanceanddimensionalaccuracy AT hainanzhang optimalcompensationmethodforcentrifugalimpellerconsideringaerodynamicperformanceanddimensionalaccuracy AT jianguoyang optimalcompensationmethodforcentrifugalimpellerconsideringaerodynamicperformanceanddimensionalaccuracy |