航空学报 > 2025, Vol. 46 Issue (16): 231624-231624   doi: 10.7527/S1000-6893.2024.31624

固体力学与飞行器总体设计

考虑环境指标的变循环发动机控制规律设计

李富霖1, 陈敏1,2, 唐海龙3, 张纪元3(), 周越4, 马静4   

  1. 1.北京航空航天大学 能源与动力工程学院,北京 100191
    2.北京航空航天大学 江西研究院,南昌 330096
    3.北京航空航天大学 航空发动机研究院,北京 102206
    4.散射辐射全国重点实验室,北京 100854
  • 收稿日期:2024-12-06 修回日期:2024-12-31 接受日期:2025-01-23 出版日期:2025-02-19 发布日期:2025-02-19
  • 通讯作者: 张纪元 E-mail:zhangjiyuan94@buaa.edu.cn
  • 基金资助:
    国家自然科学基金(52406006);航空发动机气动热力国家级重点实验室基金(2024-CXPT-GF-JJ-88-0001);航空发动机气动热力国家级重点实验室基金(12700002024146001)

Control law design for variable cycle engine considering environmental indicators

Fulin LI1, Min CHEN1,2, Hailong TANG3, Jiyuan ZHANG3(), Yue ZHOU4, Jing MA4   

  1. 1.School of Engine and Power Engineering,Beihang University,Beijing 100191,China
    2.Jiangxi Research Institute,Beihang University,Nanchang 330096,China
    3.Research Institute of Aero-Engine,Beihang University,Beijing 102206,China
    4.National Key Laboratory of Scattering and Radiation,Beijing 100854,China
  • Received:2024-12-06 Revised:2024-12-31 Accepted:2025-01-23 Online:2025-02-19 Published:2025-02-19
  • Contact: Jiyuan ZHANG E-mail:zhangjiyuan94@buaa.edu.cn
  • Supported by:
    National Natural Science Foundation of China(52406006);Foundation of National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics(2024-CXPT-GF-JJ-88-0001)

摘要:

超声速民机因其在长距离、长航时航线运输方面所具有的明显优势,已成为未来民机的重要发展方向。“绿色航空”概念的提出使得节能减排和降噪越来越成为民机的重要优化设计目标之一,自然对其动力装置也提出了相应的要求。传统构型动力无法实现起飞低噪声、超巡高单位推力、低耗油率和低排放指标的兼顾。以带核心机驱动风扇级(CDFS)的双外涵变循环发动机(VCE)构型为研究对象,考虑发动机性能及喷流噪声、NO x 排放等关键优化设计目标,开展稳态可调几何控制规律设计方法研究。研究表明,提高第1外涵分流比有助于降低NO x 排放,提高内涵和第2外涵分流比有助于降低喷流噪声。将设计结果应用于第1代超声速客机“协和号”动力装置重优化设计,与基准方案相比,在满足飞机性能需求的前提下,超声速巡航工况耗油率降低了20.19%,起飞工况喷流速度实现了44.47%的降幅,使得起飞噪声指标满足适航要求。

关键词: 喷流噪声, NO x 排放, 变循环发动机, 可调几何调节, 控制规律优化设计

Abstract:

Due to its prominent advantages in long-distance and long-endurance transportation, supersonic civil aircraft has become an important development direction for future civil aircraft. The concept of “green aviation” makes energy saving, emission reduction and noise reduction important optimization design objectives of civil aircraft, which naturally imposes corresponding requirements for its power plant. The traditional configuration power fails to realize the combination of low noise at takeoff, high thrust per unit for super-cruise, low fuel consumption rate and low emission index. Taking the dual-containment Variable Cycle Engine(VCE) configuration with Core Driven Fan Stage(CDFS) as the research object, this study examines the design method of steady state adjustable geometry control law considering key optimization design objectives such as the engine performance, jet noise, and NO x emission. The research shows that the improvement in the first-containment variable cycle engine is the best way to improve the engine performance, and increase in the first culvert split ratio helps to reduce NO x emission, while increase in the inner and second culvert split ratios facilites jet noise reduction. The design results are applied to the power unit re-optimization design of the first generation supersonic airliner Concorde. Compared with the baseline scheme, the supersonic cruise fuel consumption rate and the takeoff jet speed are reduced by 20.19% and 44.47%, respectively, enabling the takeoff noise index to meet the airworthiness requirements, under the premise of fulfilling the performance requirements of the aircraft.

Key words: jet noise, NO x emission, variable cycle engine, adjustable geometry regulation, control law optimization design

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