The Control Efficiency Analysis of Asymmetry Transmutation forFolding Wing Morphing Aircraft

Abstract

Folding wing morphing aircraft can alter their shape largely which causes the aerodynamic parameters change significantly. A control scheme that using asymmetric morphing as a control input is proposed in this paper to investigate the control efficiency and the effective range of asymmetric morphing. Firstly, the nonlinear dynamic equations and aerodynamic model that can depict the full morphing process are derived. Then, an asymmetric morphing control model is proposed based on the asymmetric morphing control method. Finally, by comparing with the efficiency of conventional control and the dynamic response of simulation, the maximum effective interval of the asymmetric morphing control is found. The results show that the efficiency of asymmetric morphing control is higher at lower flight speeds, and the asymmetric morphing control can provide the highest roll handling efficiency near the reference folding angle of 90°.

Keywords

• folding wing
• morphing aircraft
• asymmetric morphing
• control
• efficiency
• simulation