Open AccessPreliminary design of centrifugal compressor using multidisciplinary optimization method
Author(s) -
Shang Sun,
Zhufeng Yue,
Lei Li,
Mengchuang Zhang,
Weizhu Yang
Publication year - 2019
Publication title -
mechanics and industry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.256
H-Index - 18
eISSN - 2257-7777
pISSN - 2257-7750
DOI - 10.1051/meca/2019071
Subject(s) - centrifugal compressor , aerodynamics , multidisciplinary design optimization , gas compressor , finite element method , optimal design , mechanical engineering , turbocharger , overall pressure ratio , engineering design process , computer science , multidisciplinary approach , structural engineering , engineering , aerospace engineering , social science , machine learning , sociology
Centrifugal compressor is widely used in turbochargers in which the aerodynamic performance and strength are invariable among the important design objectives. As high pressure ratio centrifugal compressor develops, the interaction between multiple disciplines should be involved in the preliminary design process. A strength prediction method was presented and the prediction error was less than 3% compared with the 3D finite element calculation. The preliminary design method was established with consideration of multidisciplinary couplings. Then, a centrifugal compressor with the lowest pressure ratio of 4.4 was designed based on the method. The optimal results showed that the aerodynamic efficiency increases by 2.245% compared with the initial design results. Finally, the 3D validation was carried out including aerodynamic analysis and strength calculation, which showed good agreement with the optimal results of the preliminary design.