基于大涵道比民用涡扇发动机的典型结构,建立了其详细非线性部件级模型,可模拟飞行包线内慢车以上加、减速动态过程。重点研究了叶尖间隙主动控制系统和反推系统建模技术,通过仿真分析了开启反推和实施叶尖间隙主动控制对发动机总体性能的影响,结果表明,民用涡扇发动机巡航状态采用叶尖间隙主动控制后可显著降低油耗,反推系统能够实现预期的负推力,缩短飞机着陆的滑跑距离。 Based on the typical structure of large bypass ratio civil turbofan engine, a detailed non-linear component-level model is established to simulate the dynamic process of over-acceleration and deceleration of local car in flight envelope. Focusing on the tip clearance active control system and the backstepping system modeling technology, through the simulation analysis of the open back thrust and the implementation of active tip clearance control on the overall performance of the engine, the results show that civil turbofan cruise state using the tip Active control of the gap significantly reduces fuel consumption, and the thrust reverser system can achieve the expected negative thrust and shorten the landing distance of the aircraft.