Research on Key Parameters of Flutter Based on Plate Cascade [基于平板叶栅的颤振关键参数研究]

作者：Dong X.; Gan J.-L.; Zhang Y.-F.; Lu X.-G.

来源：Journal of Engineering Thermophysics, 2021, 42(10): 2517-2524.

• Aeroelasticity
• Flutter
• Key parameters
• Plate cascade
• Turbomachinery

Flutter is a serious threat to the operational safety of aero-engines and gas turbines. The traditional empirical method of judging the occurrence of flutter is no longer fully applicable to the new generation of high loading modern designed blades, and large-scale three-dimensional unsteady flutter calculations are difficult to achieve in the design stage. Therefore, in order to provide a reference for the design stage, research on key parameters related to blade flutter characteristics is indispensable. Based on the two-dimensional flat blade cascade, this paper has carried out research on the key parameters affecting flutter, such as reduced frequency, stagger angle, incidence, and modes of vibration (translation and torsion), etc. The aim is to summarize the development trend of flutter stability with changes in key parameters, and provide a reference for the design of components that may have flutter risk.

• 单位
  中国科学院大学