Multidimensional dynamic active variant flapping wing aircraft

Abstract

The invention relates to a multidimensional dynamic active variant flapping wing aircraft, which comprises a fuselage, flapping wings, an empennage, an actuation system and a control system. The multidimensional dynamic active variant flapping wing aircraft mainly imitates complex deformation of pinion bones in a flight flapping cycle. The flapping wing variant mechanism in the actuation system includes a wing skin, a humerus strut, a radius strut, an ulna strut, a metacarpus strut, a variant steering engine, a variant pull rod, and hinges between the struts. The variant mechanism and a flapping wing up-and-down flapping mechanism run synchronously under the control of control system program. When the flapping wings flap downward, the flapping wing front edge skeletons are in a flat unfolding state, the flapping wing area is increased, and the lift force is increased. When the flapping wings flap upward, the flapping wing front edge skeletons are in a multi-fold and spanwise contraction distortion state, the flapping wing area is decreased, and the damping force is reduced. In every flapping cycle, dynamic variant flapping of the flapping wings is realized, thereby realizing high efficiency flight imitating big birds.

Description

technical field [0001] The invention relates to a multi-dimensional dynamic and active variant flapping-wing aircraft, which belongs to the field of special aircraft. Background technique [0002] The current aircraft is mainly in the form of fixed wings. The flying principle of the flapping wings of birds is different from that of fixed-wing aircraft. It does not need propellers or jet propulsion. The flapping wings can generate both lift and thrust. It has changed people's traditional concept of aircraft design. [0003] Although the miniature flapping-wing aircraft that simply imitates the flapping flight of a bird has been successful, the existing flapping-wing aircraft only flutter with a single degree of freedom up and down, and the basic shape of the wing remains unchanged, and the skin is formed under the action of inertial force and aerodynamic force. The "passive flexible deformation", the flapping mechanism consumes a lot of energy and has low aerodynamic efficie...

AI Technical Summary

Problems solved by technology

[0003] Although the miniature flapping-wing aircraft that simply imitates the flapping flight of a bird has been successful, the existing flapping-wing aircraft only flutter with a single degree of freedom up and down, and the basic shape of the wing remains unchanged, and the skin is formed under the action of inertial force and aerodynamic force. "Passive flexible deformation", the flapping mechanism consumes a lot of energy and has low aerodynamic efficiency

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