Rigid-flexible coupled UAV morphing wing and additive manufacturing method thereof

A rigid-flexible coupled UAV morphing wing, comprising SMA strips/wires for controlling the wing upward deformation, SMA strips/wires for controlling the wing downward deformation, reinforcing ribs, a flexible substrate, an insulating covering, an SMA polymer composite strip for controlling the wingtip downward deformation, an SMA polymer composite strip for controlling the wingtip upward deformation, SMA springs for controlling the wing backward deformation, and SMA springs for controlling the wing forward deformation;

• wherein
• the SMA strips/wires for controlling the wing upward deformation and the SMA strips/wires for controlling the wing downward deformation are arranged alternately, and a plurality of reinforcing ribs are arranged at intervals on the SMA strips/wires for controlling the wing upward deformation and the SMA strips/wires for controlling the wing downward deformation;
• the SMA strips/wires for controlling the wing upward deformation and the SMA strips/wires for controlling the wing downward deformation are arranged on the flexible substrate, and are wrapped with the insulating covering;
• the SMA polymer composite strip for controlling the wingtip downward deformation and the SMA polymer composite strip for controlling the wingtip upward deformation are arranged in the flexible substrate of an wingtip, with the SMA polymer composite strip for controlling the wingtip upward deformation on an outer side and the SMA polymer composite strip for controlling the wingtip downward deformation on an inner side;
• the SMA spring for controlling the wing backward deformation and the SMA spring for controlling the wing forward deformation are arranged alternately, and are located on the flexible substrate;
• the SMA spring for controlling the wing backward deformation and the SMA spring for controlling the wing forward deformation are connected between two reinforcing ribs located at the wing root;
• and
• the SMA strips/wires for controlling the wing upward deformation, the SMA strips/wires for controlling the wing downward deformation, the flexible substrate, the SMA polymer composite strip for controlling the wingtip downward deformation, the SMA polymer composite strip for controlling the wingtip upward deformation, the SMA spring for controlling the wing backward deformation, and the SMA spring for controlling the wing forward deformation each are provided with an electric heating element.