沈阳航空航天大学学报2025，Vol.42Issue(3)：27-35,9.DOI:10.3969/j.issn.2095-1248.2025.03.004
自适应变循环发动机剩余稳定裕度扩展方法
Residual stability margin extension method for adaptive variable-cycle engines
摘要
Abstract
To address the control requirements for extending the residual stability margin of adaptive variable-cycle engines,a specific configuration of an adaptive variable-cycle engine was selected as the research object.The basic effect sensitivity analysis method was used to analyze the impact of geometric adjustment on the stability margin under three typical engine operating conditions:ground take-off state,subsonic cruise state and supersonic cruise state.The adjustable mechanisms that should be prioritized when the stability margin of the compression system of the adaptive variable-cycle engine was insufficient were identified.The geometric adjustment stability margin extension law was established for this specific adaptive variable-cycle engine and verified under typical operating conditions.The results show that adjusting the throat area of the outer nozzle is effective for extending the front fan stability margin;adjusting the throat area of the nozzle and the ejector area of the rear bypass is effective for extending the rear fan stability margin;adjusting the compressor inlet guide vane angle is effective for extending the compressor stability margin.When applying the established geometric adjustment strategy under typical conditions,the absolute error in stability margins for all compression components is less than 0.5%,demonstrating the good applicability of the proposed method.关键词
自适应变循环发动机/几何调节/稳定裕度/扩展规律/压缩系统Key words
adaptive variable-cycle engine/geometric adjustment/stability margin/extension law/compression system分类
航空航天引用本文复制引用
赵博文,施磊,李瑞军,周玉昭..自适应变循环发动机剩余稳定裕度扩展方法[J].沈阳航空航天大学学报,2025,42(3):27-35,9.基金项目
中国航发集团自立项目(项目编号:HFZL2018CXY021). （项目编号:HFZL2018CXY021）
