Flapping wing simulation flapping mechanism

Abstract

The invention discloses a flapping wing simulation flapping mechanism, comprising a front wing, a hinge, a universal joint head I, a U-shaped frame, a rear wing, a universal joint head II, a pull rodI, a T-shaped plate, a slider, and a cam mechanism, wherein the upper ends of the two sides of the U-shaped frame are respectively provided with inclined V-shaped notches, the root of the front wing is connected with the root of the rear wing through the universal joint head I, and the rear wing is connected with the rear part of the upper end of the U-shaped frame through the universal joint headII. The rear wing of the invention rotates upward around the axes of the universal joint head I and the universal joint head II during the flapping, the trailing edge of the anterior wing covers theleading edge of the posterior wing, pressure difference between the upper and low surfaces of the forewing and the hindwing increase, while upward aerodynamic increases, When the rear wing rotates downward around the axes of the universal joint head I and the universal joint head II, the front wing is separated from the rear wing, the pressure difference between the upper and lower surfaces of thefront wing and the rear wing is reduced, and the downward aerodynamic force is reduced, so that the upward lift force is generated in one flapping cycle, and the whole structure is simple, the control is convenient, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the field of aircraft manufacturing, in particular to a wing-flapping simulation type flapping mechanism. Background technique [0002] Since the 1990s, many countries in the world have been working hard to develop micro-aircraft, and in low Reynolds number flight, flapping-wing aircraft imitating birds or insects are more efficient than fixed-wing or rotary-wing mode micro-aircraft. [0003] Although human beings have made great progress in theoretical research on the aerodynamics of flapping wing aircraft, the understanding of the law of motion of flapping wings and the complex aerodynamic forces in the process of movement is still not very clear. The flight of creatures in nature, without exception, adopts the flapping wing flight method, but the methods of generating lift are not the same. [0004] The development of flapping-wing aircraft in foreign countries is represented by the United States, the Netherlands, Germany, ...

AI Technical Summary

Problems solved by technology

[0003] Although human beings have made great progress in theoretical research on the aerodynamics of flapping wing aircraft, they still do not have a clear understanding of the law of motion of flapping wings and the complex aerodynamic forces in the process of movement.

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