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介绍了适航条例对民用发动机动态性能的要求,并以完成初步方案设计的某民用大涵道比涡扇发动机为例,开展了民用大涵道比涡扇发动机动态性能模拟研究。研究了不同供油规律、不同转子转动惯量和飞机引气及功率提取对发动机加减速性能的影响。讨论了动态过程压缩部件工作线的偏移情况以及影响发动机动态过程的主要热效应现象,并采用相关文献的结论对得到的加、减速时间进行了经验修正。
The requirements of airworthiness regulation on the dynamic performance of civil engines are introduced. Taking a civil high bypass ratio turbofan engine as an example, a simulation study on the dynamic performance of a civil high bypass ratio turbofan engine is carried out. The influence of different oil supply laws, different rotor moment of inertia, and aircraft bleed air and power extraction on the acceleration and deceleration performance of the engine were studied. The shift of working line in the compression process of dynamic process and the main thermal effect that affects the dynamic process of the engine are discussed. Empirical corrections of acceleration and deceleration time are made by the conclusions of the relevant literature.