Vane self-adaption rotation and swing type variable dip angle flapping wing device and flapping wing method

Abstract

The invention relates to the field of flapping wing type aircrafts and flying robots, in particular to a vane self-adaption rotation and swing type variable dip angle flapping wing and a flapping wingmethod. The flapping wing comprises a flapping wing body, a swinging shaft and a connecting piece, wherein the flapping wing body is connected onto the connecting piece and can rotate relatively; theconnecting piece is connected onto the swinging shaft and can rotate relatively; the swinging shaft is arranged on an aircraft; the flapping wing body comprises a flapping wing frame and a rotatablevane mounted in the flapping wing frame; and a torsional spring for resetting the vane is further arranged in the flapping wing frame. Compared with the prior art, the vane self-adaption rotation andswing type variable dip angle flapping wing has the characteristics of being small in resetting stroke resistance, large and stable in working stoke resistance, high in pneumatic efficiency, simpler in structure and convenient to manufacture, and adjusting the lift force and the thrust simultaneously, and can be widely applied to various small-sized aircrafts and unmanned aerial vehicles flying with low Reynolds numbers.

Description

technical field [0001] The invention relates to the field of flapping-wing aircraft and flying robots, in particular to a wing-adaptive rotating and swinging flapping wing with variable inclination and a method thereof for an unmanned aerial vehicle. Background technique [0002] There are three flight types of aircraft flying: fixed wing, rotary wing and flapping wing. Among them, flapping wing flight is the flying mode adopted by flying creatures in nature. It mainly uses the up and down flapping of the wings to generate lift and thrust at the same time. , hovering and propulsion functions are based on one body, and at the same time have strong maneuverability and flexibility, and are more suitable for flying around obstacles. For small-sized and low-speed aircraft flying under low Reynolds numbers, the unsteady lift generated by the flapping wing is much greater than the constant lift of the fixed wing; from the perspective of thrust, the propulsion efficiency of the flap...

AI Technical Summary

Problems solved by technology

The main reason for the overall low efficiency of flapping wing aircraft is that most of the current research simply imitates the shape and flapping motion of the wings of birds or insects, but it is difficult to realize the use of the wing's own posture and structure in the process of flapping wings of flying creatures. The change of air resistance reduces air resistance and generates unsteady aerodynamic force, and the resulting low aerodynamic efficiency seriously restricts the popularization and application of flapping-wing aircraft

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