压气机旋转失速声学特性及主动控制策略探讨

A Survey of Acoustic Characteristics of Compressor Rotating Stall and Tactics of Active Control

通过对轴流压气机旋转失速的声学特性的描述，从非定常角度出发对旋转失速发作的原因及其声学特性进行了分析。同时，对轴流压气机非定常现象具有的时间尺度进行了对比研究。建立了考虑旋转失速声学特性的开环系统控制的物理模型，对于揭示轴流压气机旋转失速机理以及进一步对旋转失速进行主动控制提供了理论基础。

This paper analyzes the cause of rotating stall and its acoustic characteristics from unconventional view by describing the acoustic characteristics of axial flow compressor rotating stall. A comparative research is made on the time scale of unconventional phenomenon for the axial flow compressor. A physical model of open circuit system control considering the acoustic characteristic of rotating stall is set up to provide a theoretical basis for revealing the rotating stall machanism of the axial flow compressor and making a further active control on rotating stall.