Influence of αand αModulation on the Engine Acceleration of a Turbofan Engine

LI Wei; LI Jun; LIU Zong-long

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Influence of αand αModulation on the Engine Acceleration of a Turbofan Engine

更新时间：2026-07-07

- Influence of αand αModulation on the Engine Acceleration of a Turbofan Engine
- Vol. 20, Issue 1, Pages: 49-53(2005)
- 作者机构：
  
  空军工程大学工程学院,陕西,西安,710038
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2005
- 稿件说明：
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李伟, 李军, 刘宗龙. α1和α2调节通道对某型涡扇发动机加速性能的影响[J]. 航空动力学报, 2005, 20(1): 49-53.

LI Wei, LI Jun, LIU Zong-long. Influence of αand αModulation on the Engine Acceleration of a Turbofan Engine[J]. 2005, 20(1): 49-53.
李伟, 李军, 刘宗龙. α1和α2调节通道对某型涡扇发动机加速性能的影响[J]. 航空动力学报, 2005, 20(1): 49-53. DOI：

LI Wei, LI Jun, LIU Zong-long. Influence of αand αModulation on the Engine Acceleration of a Turbofan Engine[J]. 2005, 20(1): 49-53. DOI：

摘要

结合发动机加速模型

采用部件法编制了变几何通道时加速性能的计算程序

并详细分析了α1 通道、α2 通道调节延迟或超前时对其的影响。结果表明 :若几何通道超前调节

则推力和高压压气机稳定工作裕度增大

低压压气机稳定工作裕度减小

而延迟调节时变化趋势正好相反 ;其中α2 通道调节产生的影响大于α1通道调节产生的影响

Abstract

Based on the acceleration model

the acceleration code for engine with variable geometry channels was developed using component matching technique.The delay or ahead of schedule of high pressure compressor variable guide vanes and low pressure compressor variable guide vanes modulation was studied.The results show that for the case of the channel modulation ahead of schedule

there will be a increase of thrust and high pressure compressor surge margin

and a decrease of low pressure compressor surge margin

and vice versa for the case of modulation delay of schedule.The influence brings about by high pressure compressor variable guide vanes is higher than that of low pressure compressor variable guide vanes.

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