航空学报2026，Vol.47Issue(11)：43-61,19.DOI:10.7527/S1000-6893.2025.33025
新研民用涡轴发动机防冰设计技术
Anti-icing design technology for a new civil turbo-shaft engine
摘要
Abstract
Icing is a phenomenon that poses a serious threat to flight safety.This paper systematically conducts re-search on engine anti-icing design technology using a newly developed civil turbo-shaft engine as a platform,estab-lishing a complete anti-icing design process for turbo-shaft engines from a forward research and development perspec-tive.It proposes an"mesh screen+hot air anti-icing"composited anti-icing method that combines structure anti-icing with a square-hole curved surface mesh screen and hot-air anti-icing through automatic regulation of bleed air volume via a constant pressure valve.Numerical analysis is performed on the inlet flow field with the mesh screen under icing conditions,the total pressure loss at the inlet,changes in compressor parameters,and the impact of ice chunks on the compressor first rotor blades.The research results indicate that after icing,the total pressure loss at the inlet and the distortion of the compressor inlet flow field increase.Coupled with the temperature distortion effect caused by hot-air anti-icing,compressor efficiency and surge margin decrease,leading to engine performance deterioration.To en-sure the anti-icing effectiveness of the engine within the icing envelope,the ground idle condition at-20℃can be used as the design point for hot-air anti-icing,with a bleed air volume of approximately 2.8%.To meet the aircraft's power requirements,performance design should focus on ensuring that the engine retains sufficient power margin un-der high-altitude icing conditions.To prevent surge during engine acceleration under icing conditions,the control sys-tem can adopt a optimized control strategy that automatically reduces the acceleration limit of the gas generator rotor.The research findings have been directly applied to the development of a newly developed civil turbo-shaft engine,pro-viding important technical support for the engine's airworthiness certification.关键词
涡轴发动机/防冰设计/进气网罩/压气机/发动机性能Key words
turbo-shaft engine/anti-icing design/mesh cover/compressor/engine performance分类
航空航天引用本文复制引用
李概奇,赵尊盛,马东阳,贺丹,刘建新,刘少戎,吴楠..新研民用涡轴发动机防冰设计技术[J].航空学报,2026,47(11):43-61,19.基金项目
省部级项目 Provincial or Ministerial Level Project （）
