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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (19): 630386.doi: 10.7527/S1000-6893.2024.30386

• Uncertainties in Aerothermodynamics of Aero-engine • Previous Articles    

Research progress on uncertainty effect of compressor blade machining deviation

Limin GAO1(), Haohao WANG1, Weina HUANG2, Qiusheng LUO2, Ruiyu LI1, Guang YANG1, Yue DAN1, Chi MA1, Baohai WU3, Jiaqi LUO4   

  1. 1.School of Power and Energy,Northwestern Polytechnical University,Xi’an  710072,China
    2.AECC Sichuan Gas Turbine Establishment,Chengdu  610500,China
    3.School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an  710072,China
    4.School of Aeronautics and Astronautics,Zhejiang University,Hangzhou  310058,China
  • Received:2024-03-14 Revised:2024-04-16 Accepted:2024-04-26 Online:2024-05-10 Published:2024-05-08
  • Contact: Limin GAO E-mail:gaolm@nwpu.edu.cn
  • Supported by:
    National Science and Technology Major Project of China(J2019-II-0016-0037);National Natural Science Foundation of China(52175436)

Abstract:

The complex three-dimensional configuration and thin-walled structure of compressor blades lead to great difficulty in their manufacturing, and uncertainty of blade geometric deviation is very prominent in the machining process. As the aerodynamic loading of the compressor continues to rise and the geometric size continues to decrease, its working environment and internal flow characteristics become worse and more complex. The harsh working environment amplifies the influence of machining uncertainty. This leads to the high dispersion of the aerodynamic performance for the same batch of compressors and the frequent occurrence of severe performance degradation in service, resulting in substandard performance and even failure problems. In recent years, a lot of research work has been carried out on uncertainty quantification of compressor blade machining deviation at home and abroad. In this paper, the research progress in this field is reviewed in terms of geometric modeling, probabilistic model characterization, uncertainty quantification method, and uncertainty effect. Finally, the key problems and research prospects of uncertainty quantification on compressor blade machining deviation are summarized.

Key words: compressor, blade, machining deviation, uncertainty quantification, uncertainty effect, performance dispersion

CLC Number: