摘要
飞机可能在飞行中的任何阶段发生主操纵面失效的故障,虽然可以通过调节发动机推力继续控制飞机飞行,但若故障时配平速度远远大于安全着陆速度则最终无法安全着陆。为了将飞机配平速度降低到安全着陆的速度范围内,文章以某运输机为例,通过非线性仿真定量研究了飞行高度、重量、重心、起落架收放、襟翼位置对配平速度的影响,并给出了一种典型情况下配平速度调整的方案。
Main control surface failures of the aircraft may occur at any stage of the flight. The flight of the aircraft can contin-ue to be controlled by adjusting the thrust of the engine, but if the trim speed is much higher than the safe landing speed when thefault occurs, it will be impossible to land safely in the end. In order to reduce the trim speed to the range of its safe landing speed,this paper takes a transport aircraft as an example, in which the effects of flight altitude, weight, center of gravity, landing gear ex-tension/retraction and flap position upon the trim speed are quantitatively studied by nonlinear simulation, and a scheme of trimspeed adjustment under typical conditions is given.
出处
《科技创新与应用》
2018年第8期67-69,共3页
Technology Innovation and Application
关键词
主操纵面失效
配平速度调节
非线性仿真
main control surface failures
trim speed adjustment
nonlinear simulation
