Research Progress of Turbomachinery Flutter [叶轮机械颤振研究进展]

作者：Dong X.; Zhang Y.-F.^*; Lu X.-G.; Gan J.-L.; Zhu J.-Q.

来源：Journal of Propulsion Technology, 2021, 42(1): 53-67.

DOI：10.13675/j.cnki.tjjs.200345

• Acoustic wave reflection
• Aerodynamic damping
• Aeroelasticity
• Flutter
• Flutter suppression method
• Turbomachinery

Turbomachinery flutter is a serious threat to the safe operation of aeroengines and gas turbines. Once it occurs, it will seriously affect the safety of the equipment and reduce the service life. However, the mechanism of flutter is complex, and there are many parameters affecting the aeroelastic stability. The flow structure and key parameters are coupled. Therefore, flutter has always been a difficulty in the research of turbomachinery. New discoveries and advances in the mechanism of flutter in recent decade are reviewed, including the effects of flow structure, vibration mode, and sound wave propagation and reflection on aeroelastic stability. On this basis, combined with the actual engineering, it briefly summarizes the flutter suppression methods and the application feasibility of different methods. Finally, combining with the author's thinking, the key direction of flutter research is proposed.

• 单位
  中国科学院大学