Flapping wing for ornithopter

Abstract

The flapping wing for ornithopter is one double-layer inclined truss structure, and has the end connected to the ornithopter with greater thickness, low layer separated with the truss into homogeneously distributed square frames, and wing sheets fixed to the frames and capable of sealing the square frames. The flapping wing is connected to the ornithopter body via the connecting rotation shaft. The wing sheets are slightly opened normally, when the flapping wing is raised, the wing sheets are opened to reduce resistance, and when the flapping wing moves downwards, the wing sheets seal the square frames to form great upward support force. When the flapping wings swing up and down, great 'differential force' may be produced to reduce power consumption.

Description

technical field [0001] The invention relates to an aircraft flapping wing. Background technique [0002] The orthopter is one of the oldest models ever conceived, and it belongs to bionics. Due to the large weight of human beings and the relatively weak strength of hands and feet, this bird-like orthopter is only a fantasy. The flapping wings designed by some people are all in the shape of a whole cloth bag, and the "contrast force" is extremely small when the upward and downward force is exerted. It is difficult to achieve the purpose of lift-off. We have observed that there is a bony rod in the bird's feathers, and there are whole rows of neatly arranged hair rods on both sides, but one thing people ignore is that it is slightly curved. When the bird's wings are lifted up, the airflow will bend it When the angle becomes larger, the resistance decreases, and when it is pressed down, its feathers become flattened, thereby increasing its uplifting force, so birds can fly w...

AI Technical Summary

Problems solved by technology

Since a considerable part of the middle part of the bird's wing is where the meat membrane or feathers are concentrated, this part cannot form a "contrast force" when swinging up and down, and the effect is still not very ideal.

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