Piezoelectric dragonfly-imitating micro flapping-wing aircraft

Abstract

The invention discloses a piezoelectric dragonfly-imitating micro flapping-wing aircraft. The piezoelectric dragonfly-imitating micro flapping-wing aircraft comprises an aircraft body, wing fixed plates, dragonfly-imitating wings and four twin-lamella piezoelectric actuators; the aircraft body comprises a fixing chamber, the wing fixed plates are fixed in a cavity of the fixing chamber, fixed orifices are arranged on opposite sidewalls of the fixing chamber, the dragonfly-imitating wings pass through the fixed orifices and are fixed on the wing fixed plate; the dragonfly-imitating wings comprise two front wings and two rear wings, one end of the twin-lamella piezoelectric actuator passes through the fixed orifices and is fixed with a wing root of the wing, other parts are suspended, and a cantilever beam structure is formed, and each twin-lamella piezoelectric actuator respectively controls one wing to generate flapping movement or adjusts deflecting direction under voltage excitation. The wings can bear high-frequency alternating stress, can bear different loads of various attitudes such as flapping, gliding and circling, and can obtain excellent balance stability and attitude control diversity; and more wings can obtain larger bearing capability.

Description

technical field [0001] Embodiments of the present invention relate to the field of micro-aircraft technology, and more specifically, embodiments of the present invention relate to a piezoelectric dragonfly-like flapping-wing micro-aircraft. Background technique [0002] The concept of Micro Aerial Vehicle (MAV) was first proposed by DARPA in 1992. The size standard of MAV proposed at that time is that the length, width and height of the body should not exceed 0.15m, the maximum weight is about 0.1kg, the payload is about 0.056kg, and the speed is 10-20m / s. Considering the practical load requirements of the United States, Usually the size is less than 0.33m. Usually divided into fixed wing, rotary wing, flapping wing three. [0003] Micro flapping wing aircraft is a new type of aircraft that imitates the flight of birds or insects. It uses complex movements of wings to achieve flight. Compared with fixed-wing and rotary-wing, the flapping-wing flight mode has a larger lift...

AI Technical Summary

Problems solved by technology

[0008] The present invention overcomes the deficiencies of the prior art and provides a piezoelectric imitation dragonfly miniature flapping wing aircraft, hoping to solve the problem that the existing aircraft cannot withstand high-frequency alternating stress and the flight attitude is limited by taking advantage of the flying advantages of dragonfly wings , poor stability and weak carrying capacity

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