超小型飞机的控制系统仿真研究

Study of Simulation on Control System of Sub - Mini Aeroplane

超小型无人机是目前国内外重点研究的自治机器人之一。由于其尺寸小,外部干扰相对较大,设计一个抗大干扰的飞行控制系统是十分必要的.该文针对一种固定翼机型,通过气动特性的仿真,对若干种情况下的飞行姿态、飞行速度的控制方法进行了仿真研究。仿真结果不仅定量地给出了超小型无人机的气动特性是处于低雷诺数与高雷诺数之间,而且表明单纯的PID控制方法对超小型无人机的姿态稳定控制是不够的。

Sub-mini aerial vehicles(SMAV) are mainly studied one of autonomy robots now. Because of its smaller sizes and larger exterior disturbance corresponding with large airplane, it is necessarily that a control system who can endure a larger interfereance is designed. In this paper, the methods of flight postures and speeds controled in several cases are simulated for a kind of SMAV with fixed wings. The results of simulation show that Reynold' s number of our SMAV is between low Reynold' s number and high Reynold' s number. Meanwhile, it is not enough that only method of PID control is used for control of postural stability of SMAV.