Bionic flapping wing flapping and twisting combined motion transmission device for miniature aircraft

Abstract

The invention discloses a bionic flapping wing flapping and twisting combined motion transmission device for a miniature aircraft, and belongs to the field of aircraft design. The device comprises a supporting rod, a transmission mechanism and a flapping wing main structure. The supporting rod is vertically arranged, the bottom of the supporting rod is fixedly connected with a fuselage of the miniature aircraft, and the middle and top end of the supporting rod are respectively connected with the transmission mechanism and a flapping wing main beam. The transmission mechanism comprises an uppersleeve, a lower sleeve, a driving rod, an L-shaped connecting rod and a limiting rope. The flapping wing main structure comprises the flapping wing main beam, a flapping wing outer beam, a flapping wing main rib, a flapping wing auxiliary beam and a wing membrane. The device can solve the technical problems that (1) under the condition that the maximum value of the lifting force at the time of downswing is guaranteed, the resistance at the time of upswing is effectively reduced; (2) the flapping wing torsion angle can be adjusted by adjusting the length of the limiting rope, and operation issimple and convenient; and (3) the resistance in the upswing is reduced, the resistance in the downswing stage has no obvious difference from that of a traditional flapping wing, and the advantage ofhigh energy utilization rate is achieved.

Description

technical field [0001] The invention relates to a transmission device for combined movement of bionic flapping wings flapping and torsion for micro-aircraft, and belongs to the field of aircraft design. Background technique [0002] The micro air vehicle is small in size and easy to carry, and has good maneuverability and concealment. Therefore, MAVs are suitable for completing tasks such as exploration, reconnaissance, and rescue in narrow spaces and harsh environments. It is precisely because of the application requirements and vacancies of micro air vehicles under special conditions that micro air vehicles have become a research hotspot in the field of aviation in the past two decades. wing aircraft. These three types of aircraft have their own advantages and disadvantages. To put it simply, fixed-wing aircraft has the traditional advantages of high-speed flight, but it is difficult to achieve hovering or vertical take-off and landing; rotorcraft can achieve vertical ta...

AI Technical Summary

Problems solved by technology

These three types of aircraft have their own advantages and disadvantages. To put it simply, fixed-wing aircraft has the traditional advantages of high-speed flight, but it is difficult to achieve hovering or vertical take-off and landing; The torque leads to a more complex structure, and there are also disadvantages of low aerodynamic efficiency at low Reynolds numbers

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