飞机超声速巡航主动重心控制系统设计

Design of Active Center of Gravity Control System for Aircraft Supersonic Cruise

针对某型飞机,从飞行动力学角度推导了飞机巡航阻力与重心位置、气动焦点位置之间的关系,分析了主动重心控制技术降低飞机超声速巡航飞行阻力的基本原理;构建了适用于飞机超声速巡航的主动重心控制系统结构方案,在此基础上设计主动重心控制器协调飞机的纵向稳定性和操纵性。仿真结果表明,将主动重心控制技术应用到某型飞机超声速巡航中,可有效减小巡航阻力,提高巡航的效率和航程。

According to a given aircraft,the formula of aircraft cruise drag and center of gravity as well as aerodynamic center position was derived based on flight dynamics,and then the principle of reducing supersonic cruise drag by active center of gravity control technology was discussed;the architectures of active center of gravity control system applied to supersonic cruise was established,and then active center of gravity controller was designed to coordinate longitudinal stability with maneuverability well.The simulation results turn out that when active center of gravity control technology is applied to supersonic cruise,cruise drag of the given aircraft is reduced effectively,and then cruise efficiency and range is increased.