飞机引导控制指令研究

Research on aircraft guidance control command

飞机引导控制指令的选择直接影响到飞行控制性能,对引导控制指令的种类和优劣进行研究具有重要意义。首先,以纵向为例,分析认为可选择的引导控制指令有俯仰角指令、法向过载指令和垂直速率指令;然后,在几个合理假设的基础上,采用理论分析方法对上述三种引导控制指令进行比较,所得结论如下:在抑制风对迎角、高度的干扰,以及抑制参数摄动对高度的干扰等方面,能力由高到低分别为过载指令、垂直速率指令和俯仰角指令。最后,通过仿真对上述结论进行了辅助验证。

The selection of aircraft guidance control command directly affects the flight control performance,so it is very important to study the types and advantages of the guidance control commands. Firstly,it was analyzed and considered that there are three kinds of control commands,such as pitch angle command,normal load command and vertical rate command. Then,the three control commands were compared with the method of theoretical analysis on the basis of some reasonable assumptions. The conclusion is that the ability from high to low are respectively load command,vertical rate command,pitch angle command,in suppressing angle of attack error,height error caused by wind disturbance and restraining the height error caused by parameter perturbation. Based on the above assumptions,the conclusion was verified and clarified by simulations.