某型发动机飞行加力喘振问题分析

Surging Analysis for a Certain Type of Areo-Engine on Afterburner State

发动机喘振是发动机一种非正常工作模态,危害性极大,发动机加力状态喘振危害尤其大。文中基于某型发动机加力喘振特征,定性分析了发动机加力喘振发生的机理和对飞机及发动机部件的危害,总结了压气机喘振的判读参数,提出了退出加力喘振的建议、飞行员规避喘振的具体操作等。对发动机的设计与使用起到了重要的借鉴意义。

Surging for aero-engine is an abnormal operational modal,and it is great harm,especially it is harm more on afterburner state. Based on the characteristics of a certain type of engine afterburning,this paper qualitatively analyzes the surge mechanism of engine afterburning and the damage to aircraft and engine components. It summarizes the interpretation parameters of compressor surge and proposes to withdrawfrom the surge. The pilot' s specific operation to avoid surge. It has played an important role in the design and use of the engine.