Chord-length self-adaptive telescopic flapping wing and flapping-wing aircraft suitable for active torsional flapping mechanism

Abstract

The invention provides a chord length adaptive stretching and contracting type flapping wing suitable for an active torsion flapping mechanism and a flapping wing machine. The chord length adaptive stretching and contracting type flapping wing comprises a front beam, a rear beam, stretching and contracting type wing ribs and a lap-joint type outer panel skin, wherein a flapping wing skeleton is distributed and provided with the multiple stretching and contracting type wing ribs in the direction from a wing root to a wing tip, each stretching and contracting type wing rib comprises a front edgesegment wing rib, a rear edge segment wing rib and a stretching and contracting sleeve, and the lap-joint type outer panel skin comprises a front edge segment outer panel skin and a rear edge segmentouter panel skin. The chord length adaptive stretching and contracting type flapping wing suitable for the active torsion flapping mechanism and the flapping wing machine have the advantages that (1), the chord length adaptive stretching and contracting type flapping wing has the ability of changing the wing area adaptively to be capable of adapting to a certain degree of chordal stretching and contracting generated by the active torsion flapping mechanism, the aerodynamic shape integrity of an active torsion flapping wing in the whole flapping process is guaranteed, thus the aerodynamic performance is guaranteed, and the flapping wing flight aerodynamic efficiency is improved; and (2), by means of design on the outer panel skin, the wing face is guaranteed to be a whole with a complete aerodynamic shape in the flapping process, and then the flapping wing overall aerodynamic characteristic is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of flapping wing design, and in particular relates to a chord-length self-adaptive telescopic flapping wing and a flapping wing aircraft suitable for an active torsional flapping mechanism. Background technique [0002] The micro flapping wing aircraft is a new concept aircraft that imitates the flight of birds. It has the advantages of small size, light weight, maneuverability and high efficiency. If it is equipped with sensors and related data transmission and flight control systems, it will form a micro flapping wing UAV. platform, it will have broad application prospects. [0003] Focusing on this topic, various countries have developed various flapping-wing aircraft. It has been found through research that during the flapping process, the torsional movement of the flapping-wing aircraft can significantly enhance the aerodynamic characteristics of the flapping wing. However, if a conventional flapping w...

AI Technical Summary

Problems solved by technology

However, if a conventional flapping wing with an invariable shape is used, when the wing surface twists during the flapping process, the wing surface cannot maintain a complete aerodynamic shape, thereby reducing the overall aerodynamic characteristics of the flapping wing.

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