A kind of beat-to-beat four-wing flapping-wing aircraft and its movement method

Abstract

The utility model relates to a beat-to-beat four-wing flapping-wing aircraft. It includes a fuselage and four wings; the fuselage is provided with a wing controller; the four wings are respectively two upper wings and two lower wings; the two upper wings are respectively an upper right wing and an upper left wing; The two lower wings are respectively the lower right wing and the lower left wing; the upper right wing includes the upper right inner wing and the upper right outer wing, and the upper left wing includes the upper left inner wing and the upper left outer wing; the inner ends of the upper right inner wing and the upper left inner wing are respectively hinged on The two sides of the fuselage; the right lower wing includes the right lower inner wing and the right lower outer wing, and the left lower wing includes the left lower inner wing and the left lower outer wing; the inner ends of the right lower inner wing and the left lower inner wing are respectively hinged The side is located at the lower side of the upper right inner wing and the upper left inner wing. The invention has the advantages that the wings can be bent, folded and rotated, and the upper and lower wings can be shot together. There are two modes of movement, one is high lift mode and the other is fast propulsion mode. In high-lift mode, two downs and one upswing are achieved within one flapping cycle to increase lift.

Description

technical field [0001] The invention belongs to the technical field of flapping-wing aircraft, in particular to a counter-beating four-wing flapping-wing aircraft and a movement method. Background technique [0002] The flapping-wing aircraft is a new type of flapping-wing aircraft that imitates the flapping wings of birds or insects. Different from traditional fixed-wing aircraft and rotorcraft, the flapping-wing aircraft mainly achieves propulsion and elevation by flapping, folding and twisting the wings, and has a relatively With high flexibility, it has broad application prospects in both national defense and civilian applications. [0003] In nature, bees provide lift by flapping and separating wings to generate leading edge vortices. This flapping method includes flapping and twisting of wings, which can effectively use leading edge vortices. However, due to the excessive angle of attack of the fuselage during flight, , so the flight speed is slow. Imitating the wing...

AI Technical Summary

Problems solved by technology

Chinese patent CN 103482064A adopts a bird-like two-stage flapping wing, and joints are used at the joints of the inner and outer wings to hinge, which basically realizes the up and down flapping and the bending and folding of the outer wings, and imitates the flight process of birds to a certain extent. Joint hinged structure control is difficult

Chinese patent CN 101417708A divides the flapping wing surface into inner and outer wing sections, and controls the folding angle of the front and rear wing sections by setting angle limiters on the front and rear wing ribs, so as to realize the torsion phenomenon during the flapping process of the flapping wing. The disadvantage is that the angle of attack of the flapping wing can only be set at a fixed value by setting the angle limiter, and it cannot be adjusted flexibly according to the incoming flow velocity

However, there is no relevant report on the beat-to-beat four-wing flapping-wing aircraft and its movement method

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