Bionic sharkskin structure capable of reducing drag

Abstract

The invention relates to wings of an aircraft and provides a bionic sharkskin structure capable of reducing drag to overcome the problems that conventional aircrafts cannot improve the off-line pneumatic performance of the whole flight bag in the case of different pneumatic environment conditions on the occasion of a disordered gas field and that the aircrafts encounter great flight drag and cannot meet the demand of flying at different flight speeds in the disordered gas field. The bionic sharkskin structure comprises a dielectric elastomer, a flexible electrode layer and nano-wire conductive coatings, wherein the dielectric elastomer is of a plate structure; one plate surface of the dielectric elastomer is coated with a plurality of the nano-wire conductive coatings; the plurality of the nano-wire conductive coatings are applied along a horizontal direction and along two oblique directions in oblique crossing with the horizontal direction to form a net structure; and other plate surface, opposite to the above plate surface, of the dielectric elastomer is coated with the flexible electrode layer. The bionic sharkskin structure capable of reducing drag in the invention is applied to wing roots.

Description

technical field [0001] The invention relates to an aircraft wing, in particular to a bionic sharkskin drag-reducing structure for the wing of an amphibious aircraft, and belongs to the technical field of aircraft. Background technique [0002] Whether it is a flying animal or an artificial aircraft, in order to perform different tasks (such as cruise, hover, attack or escape, etc.), or to meet the different requirements of the flight environment (such as altitude, speed and climate, etc.), it often needs to be adjusted accordingly. To achieve high efficiency, safety and mission requirements. [0003] Because the aircraft faces different aerodynamic environmental conditions in the turbulent air field, the existing wing root or skin often cannot improve the aerodynamic performance under the entire flight envelope, and the flight resistance of the aircraft is relatively large, which cannot meet the requirements of the turbulent air field. The flight requirements of different f...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the existing aircraft faces different aerodynamic environmental conditions under the turbulent air field, and cannot improve the aerodynamic performance under the entire flight envelope, and the flight resistance of the aircraft is relatively large, and cannot meet the requirements of different flight speeds under the turbulent air field. Flying requirements, and then provide a bionic shark skin drag reduction structure

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