基于主动流动控制技术的无舵面飞翼布局飞行器姿态控制

飞翼布局飞行器因其升阻比高、隐身性能好等诸多优势得到越来越广泛的应用，但是操纵舵面偏转会增加飞行器的雷达散射截面积。提出了采用射流环量控制和反向射流两种主动流动控制技术实现飞行器的无舵面飞行姿态控制。利用风洞测力试验对射流环量控制和反向射流的"舵效"进行了分析，结果表明环量控制技术能产生规律变化且可控的滚转和俯仰力矩、反向射流产生的偏航力矩随控制信号规律变化。飞行试验记录了飞行器姿态随射流激励器控制信号的变化规律，飞行数据表明俯仰环量控制激励器能有效地控制无人机的俯仰运动；无人机的横航向操纵存在耦合，但滚转环量控制激励器和反向射流能控制无人机的滚转和偏航运动。

Attitude control of flying wing aircraft without control surfaces based on active flow control

Flying wing aircraft has been increasingly used because of its high lift-drag ratio and superior steal performance. However, the deflection of the control surface increases the radar scattering area of the aircraft. In this work, a control method adopting jet circulation control and reverse jet control is proposed to control the flight attitudes for a flapless flying wing configuration. The wind tunnel force measurements were conducted to analyze the effectors of these two active flow control methods. Results show that jet circulation control can provide the regular and controllable rolling moment and pitching moment for the model, while the reserve jet control can provide the regular and controllable yawing moment. A flight test was conducted to investigate the attitude variation with the control signals of the active flow control actuator. The flight data indicate that the jet circulation control can control the pitching movement of the UAV. Despite the coupling of the lateral and directional control, the rolling movement and yawing movement can be controlled with jet circulation control and reserve jet control respectively.