发动机作为飞机的核心组成部分,发展目标是更高效、更轻及阻力更小。随着复合材料逐渐应用于发动机中,发动机的尺寸变得越来越大,且结构日趋一体化。但其中新型发动机短舱在提高效率的同时,其维修变得越来越复杂。通常,发动机都是通过加装短舱与飞机相结合。绝大多数短舱都具有类似的结构,主要部件包括反推装置、进气道、整流罩及排气系统。但作为新一代发动机短舱,装备于中国商飞C919飞机上的Leap Engine as a core component of the aircraft, development goals are more efficient, lighter and less drag. As the composite material is gradually applied to the engine, the size of the engine becomes larger and larger, and the structure becomes more and more integrated. However, the new engine nacelle, while improving efficiency, has become more and more complex in its maintenance. In general, the engines are combined with the aircraft through the installation of nacelles. The vast majority of nacelles have a similar structure, the main components include thrust reversers, air intake, fairing and exhaust system. But as a new generation of engine nacelles, equipped with Leap on China’s commercial aircraft C919