根据我国《运输类飞机适航标准》的要求,采用有理谱逼近的方法建立了Von Karman大气紊流的数值仿真模型;详细推导了多变量系统鲁棒性的衡量方法,给出了开环系统奇异值曲线形状与闭环系统鲁棒性的关系;针对飞翼飞机多操纵面的特点,将控制分配技术与LQG/LTR控制器结合在一起,同时兼顾了对飞机过载和翼根弯矩的减缓。仿真结果表明,所设计的控制系统在对飞机过载减缓的同时,也对机翼的翼根弯矩进行了有效的减缓。 According to the requirement of “airworthiness standard for transport aircraft” in our country, the numerical simulation model of Von Karman atmospheric turbulence is established by the method of rational spectral approximation. The method of measuring the robustness of multivariable system is deduced in detail. The open-loop system The relationship between the singular value curve and the robustness of the closed-loop system. Combining the control distribution technology with the LQG / LTR controller for the multiple control surfaces of the flying-wing aircraft, both the aircraft overload and the root-bending moment reduction . The simulation results show that the designed control system can effectively reduce the wing root bending moment while reducing the overload of the aircraft.