飞机危险高度拉起的触发条件研究及仿真

Research and Simulation of Trigger Condition of Airplane Pull-up from Danger Height

为了保证飞行的安全,必须使飞机在危险高度以上飞行。危险高度拉起是飞机自动驾驶仪的一项功能,当飞机接近或者达到危险高度时,自动驾驶仪控制飞机进行拉起运动,从而使飞机脱离危险高度。根据飞机改出俯冲过程高度损失公式,针对滚转角等于零和不等于零两种情况,分别提出了危险高度拉起的触发条件。仿真结果表明,该触发条件能有效地使飞机脱离危险高度。

To ensure the safety of flight,airplane must fly above danger height.Pull-up from danger height is a function of autopilot.When an airplane approaches or arrives at danger height,the autopilot makes it be pulled up so that it gets away from danger height.According to the formulary of height loss in the process of withdrawing from motorized dive,two trigger condition for zero-roll angle and none-zero-roll angle was brought forward.The simulation shows these touch-off conditions can efficiently get airplane away from danger height.