Cross-medium aircraft based on bionic morphing wings

Abstract

The invention discloses a cross-medium aircraft based on bionic morphing wings, and belongs to the field of cross-medium aircrafts. According to the bionic variant wing, the bird wing is used as a bionic object, the bird wing is simulated in the aspect of the overall structure of the wing, and the bionic variant wing can be subjected to complex configuration change through rigid-flexible combination, so that the cross-medium aircraft can adapt to different working conditions through active configuration change of the wing and passive deformation of feathers when flying in the air; the resistance of the cross-medium aircraft in the water entering process is reduced by folding the wings backwards before the aircraft enters the water, meanwhile, the attitude stability in the water entering process is improved, and the sailing resistance can be reduced and lift redundancy can be avoided through the backward folding state of the wings when the aircraft sails in the water; the duct of the underwater propeller is arranged in the aircraft body, after the cross-medium aircraft enters water, the internal space of the duct and the wings can be rapidly filled with water, rapid change of the average density of the aircraft is simply and conveniently achieved, and the requirement for the average density of the aircraft in underwater navigation of the cross-medium aircraft is met.

Description

technical field [0001] The invention belongs to the field of trans-medium aircraft, in particular to a trans-medium aircraft based on bionic variant wings. Background technique [0002] The trans-media vehicle is a new concept amphibious unmanned aerial vehicle that can cruise amphibiously in the air and water and can freely cross the air-water interface. It has many military and civil application prospects. The design of cross-medium aircraft involves multiple disciplines, and the technical difficulty is high. In addition, the research started late. There is still no cross-medium aircraft with practical functions in the world. At present, the research in this field is basically still in the overall conceptual design, key Technical research and prototype verification stage. [0003] Existing cross-medium aircraft generally face the problems of large impact load and difficult attitude stability during water entry, and the low average density of cross-medium aircraft during u...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the trans-medium aircraft based on the bionic variant wing disclosed by the present invention is: take the bird wing as the bionic object, imitate the bird wing in the overall structure of the wing, and be able to perform complex deformation through the combination of rigidity and flexibility The type of bionic variant wing enables the trans-medium aircraft to adapt to different working conditions through the active variable configuration of the wing and the passive deformation of the feathers when flying in the air. Before entering the water, the trans-medium aircraft can be reduced The resistance during the water entry process, while improving the attitude stability during the water entry process, the state of the wings folded back when navigating in the water can reduce sailing resistance and avoid redundant lift; by setting the duct of the underwater propeller inside the fuselage , after the trans-medium aircraft enters the water, the internal space of the duct and the wing can be quickly filled with water, and the rapid change of the average density of the aircraft itself can be realized simply and conveniently, so as to meet the requirements of the average density of the trans-medium aircraft for underwater navigation

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