大涵道比涡扇发动机发展研究

大涵道比涡扇发动机用途广泛、市场巨大,对国民经济发展、国防建设和科技进步具有重大推动作用和战略意义.概述了国内外大型军民用运输机的发展现状,归纳了其性能与适航要求更高、经济性与环保性更好的发展趋势,总结了其多继承少创新,共用核心机系列化和军民融合的发展途径.针对中国目前和未来的需求,提出了需要突破的总体设计、稳定性、高压高效叶轮机、高性能燃烧室、先进空气系统等通用技术和适航、大尺寸弯掠风扇叶片、复合材料风扇叶片、低噪声设计、低污染燃烧室、反推力装置等特有技术.

Investigation of High Bypass Ratio Turbofan Engine Development

High bypass ratio turbofan engine has been widely used in global market , and it has remarkable promotion and strategy meaning on economy development, national defense construction, and science and technology improvement. The future development trend was summarized that including the performance is higher, the airworthiness requirement is stricter, the affordability and environmental protection ability are better. The development road was overviewed that is more inherent and less innovation, and is derivates from common core, and could be used in both military and civil. For future advanced high bypass ratio turbofan engine, the common and special technologies to be developed and demonstrated are proposed. The common technologies include general engine design, stability, high pressure and high efficiency turbomachinery, high performance combustor, advanced second air system, etc. The special technologies include airworthiness, large size lean-swept fan blade, composites fan blade, low noise design, low emission combustor, thrust reverser, etc