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为保证飞机在要求精度下完成进场着陆(着舰),需要使飞行速度控制系统具有良好的控制性能。简述了飞机飞行速度控制系统的主要作用,分析了飞行速度控制的几种主要构成方案,建立了基于升降舵控制的飞机飞行速度控制系统结构原理图及Simulink仿真结构图,运用数字仿真方法,对该速度控制系统的内、外回路进行了大量仿真研究,获得相应速度控制系统的良好控制规律传动比。仿真结果显示,基于升降舵的飞机飞行速度控制系统方案及其控制规律是合理可行的。
In order to ensure that the aircraft can approach the landing (landing) with the required accuracy, the flight speed control system needs to have good control performance. The main functions of the aircraft flight speed control system are briefly described. The main components of the flight speed control system are analyzed. The structural principle diagram of the flight speed control system and the Simulink structure chart are established based on the elevator control. By using digital simulation method, The speed control system, a large number of internal and external loop simulation study, access to the corresponding speed control system, a good control law of the transmission ratio. The simulation results show that the flight speed control system based on elevator and its control law is reasonable and feasible.