A flapping-folding-active torsion hybrid-driven bionic flapping-wing aircraft

Abstract

The invention discloses a flapping-folding-active torsion hybrid-driven bionic flapping-wing aircraft. The bionic flapping-wing aircraft includes a fuselage body, a flapping mechanism, a twisting mechanism, wings on both sides and an empennage mechanism. The front fixed frame and the rear fixed frame connected by the shaft, the flapping transmission gear is housed on the front fixed frame, and the torsion transmission gear is housed on the rear fixed frame, and the transmission gear is connected with the flapping wing skeleton through the transmission device. When the flapping motor starts, the synchronous pulley on the output shaft of the flapping motor rotates to drive the flapping wing transmission gear to rotate to realize the flapping and folding movement of the wings. In the same way, the torsion motor is started to realize the torsional movement of the wing; the empennage transmission mechanism is fixed at the tail of the fuselage, and the steering of the aircraft is realized by adjusting the empennage servo. The overall aircraft contains two motors, which increase the flexibility of the aircraft and improve the flight efficiency. It truly imitates the movement of birds' wings and can realize various flight functions.

Description

technical field [0001] The invention belongs to the field of aircraft and relates to the technical field of a bionic flapping-wing aircraft, in particular to a bionic flapping-wing aircraft driven by a flapping-folding-active torsion hybrid drive. Background technique [0002] The bionic flapping wing aircraft is a new type of flying machine that imitates the flight of birds and insects and is designed and manufactured based on the principle of bionics. The bionic flapping wing aircraft usually has the characteristics of moderate size, easy to carry, flexible flight, good concealment, etc., so it has very important and extensive applications in the fields of civil and national defense. [0003] At present, most of the flapping-wing aircraft studied are single-degree-of-freedom mechanisms. This type of driving method is simple in structure, light in weight, and realizes a single form of motion. The flight flexibility and stability cannot be compared with flying creatures. Pa...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the flapping-wing aircraft studied are single-degree-of-freedom mechanisms. This type of driving method is simple in structure, light in weight, and realizes a single form of motion. The flight flexibility and stability cannot be compared with flying creatures.

Patent (CN106043692A) provides a multi-degree-of-freedom bird-like flapping-wing aircraft that integrates flapping wings swinging, twisting, bending and folding. Although it can realize multi-degree-of-freedom movements, it has many driving parts, large mass, and complex structure, so it is not easy to miniaturize

Patent (CN105329443A) discloses a flutter-torsion coupled motion flapping-wing aircraft with simple structure, capable of flapping and twisting two degrees of freedom, flexible flight and large effective lift, but in order to make it miniaturized, a drive The original moving part cannot realize multiple motion forms at the same time. The deformation of the flapping wing is passive deformation under the action of aerodynamic force. The quality of the flight depends entirely on the control of the flexibility of the flapping wing. The transmission mechanism of the aircraft is not flexible enough, the movement mode that can be realized is fixed, and the flapping angle or twisting angle of the wings during flight cannot be independently changed, and the flexible flying posture of birds cannot be truly imitated.

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