一种可变形机翼的变形策略及其协同控制

Aiming at the morphing and cooperative control of deformable wings, this paper proposes a variable airfoil strategy to ensure the smoothness of the variable airfoil and facilitate the implementation of control. A cooperative controller based on cross-coupling is also designed to solve the synchronous problem in the process of airfoil morphing. First, this paper analyzes the influence characteristics of wing morphing on aerodynamic parameters and the load of the morphing device through the computational fluid dynamics simulation method. Second, a dynamics model of the airfoil morphing system is established in this paper, and a cross-coupling synchronization error generation method, which uses synchronous deviation to represent synchronization performance, is proposed. A distributed synchronous controller is also designed, ensuring the convergence of synchronization errors to zero. The wing is morphed into the desired one, and all morphing devices act cooperatively in the process. Finally, the effectiveness and stability of the cooperative control method are verified by numerical simulation. Compared with the parallel control method, the synchronization and steady-state performances of this proposed method are significantly improved.