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飞翼布局飞机由于其特殊布局形式,飞控系统设计通常采用高增益大阻尼控制增稳方法,同时飞翼布局飞机的操纵面操纵效率非线性显著,涉及多操纵面组合控制以及控制分配,因此,采用常规的杆力或杆位移作为输入指令,多数情况下无法顺利地激励出理想的纵向短周期模态。本文采用迎角指令跟踪法研究飞翼布局飞机的纵向短周期品质,利用Simulink进行创新操纵面布局飞机的闭环仿真系统建模与验证,并通过小型飞翼布局无人机进行飞行试验评估。结果表明,该方法用于飞翼布局飞机纵向短周期品质试飞时,易于激励出其纵向短周期模态,并可实现飞机精确控制。
Flying wing layout Because of its special layout, flight control system design usually adopts high gain and large damping to control the stabilization method. Meanwhile, the control efficiency of the control plane of the flying wing layout aircraft is significant and involves multiple control plane combination control and control distribution , Using conventional rod force or rod displacement as input command, in most cases can not successfully stimulate the ideal longitudinal short-period mode. In this paper, we study the short-cycle quality of the flying-wing aircraft using the angle-of-attack tracking method. We use Simulink to model and verify the closed-loop simulation system of the aircraft with the innovative control plane layout. The results show that this method is easy to excite its longitudinal short-period mode and can achieve precise control of the aircraft when it is used to test the longitudinal short-cycle quality of the aircraft.