Control System Design of Variable-span Morphing Aircraft Based on T-S Fuzzy Modeling

The problem of cooperative control of morphing aircraft during deformable flight is studied. The object is a morphing aircraft with retractable wings. Firstly, the characteristics of aerodynamic parameters varying with deformation are analyzed, and the longitudinal T-S fuzzy model is established. Then, combined with the robust $H_{\infty}$ control idea, and fuzzy Lyapunov function are adopted. Fuzzy Robust $H_{\infty}$ Control (FRHC) based on T-S fuzzy model is proposed. In the end, simulations verify that the model well describes motion characteristics of that nonlinear model within the flight envelope, and the proposed FRHC method guarantees the stability, robustness and tracking accuracy of deformation flight. CCS Concepts: Modeling methodologies, Model verification andvalidation, Nonlinear equations