Abstract:

To analyze the effect of wing deformation on the aircraft performance, and realize steady flight of the aircraft during morphing, the dynamic modeling and the robust control for the telescopic-wing aircraft in flight during morphing are studied. First, the aerodynamic parameters of the telescopic-wing aircraft are established as functions of wing deformation via simulation and analysis. The dynamic models of the telescopic-wing aircraft in flight during morphing are constructed subsequently. Then, a novel sliding mode gain-scheduled control (SMGSC) strategy is proposed to guarantee the global stability and robustness of the closed-loop plant. The simulation results show that, the aerodynamic performance and the motion modes of the telescopic-wing aircraft can be affected by the wing deformation. The proposed SMGSC can provide a higher stability and a stronger disturbance rejection for the telescopic-wing aircraft in flight during morphing. The telescopic-wing aircraft can perform the same flight task with 50% less fuel consumption through wing deformation, which means a great advantage over conventional aircraft.