Flexible metal composite material skin structure capable of regulating and controlling local out-of-plane deformation

By integrating airbags into the wing and using a flexible metal composite skin structure, the problem of airbag de-icing devices affecting the wing's aerodynamic performance was solved, achieving a smooth wing shape and improved aerodynamic performance.

CN121317079AActive Publication Date: 2026-01-13TAIYUAN UNIVERSITY OF TECHNOLOGY
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Patent Information

Application Number
CN202511913957.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-18
Publication Date
2026-01-13
Estimated Expiration
2045-12-18

AI Technical Summary

Technical Problem

When existing airbag de-icing devices are installed on the surface of aircraft wings, they are difficult to fit completely against the wing surface, resulting in a decrease in the smoothness of the wing surface and affecting the aerodynamic performance of the aircraft.

Method used

The airbag is integrated into the wing and a flexible metal composite skin structure with adjustable local out-of-plane deformation is adopted. It includes a locally deformable metal substrate, a drive device, and a continuous surface material. The drive device causes the metal substrate to deform locally, forming a smooth aerodynamic shape.

Benefits of technology

It improves the aerodynamic performance of the aircraft, maintains the smooth shape of the wings, reduces the loss of the maximum lift coefficient, and enhances the stability and durability of the structure.

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Abstract

The invention discloses a flexible metal composite material skin structure capable of regulating and controlling local out-of-plane deformation, and belongs to the technical field of metal skin structures. The paper-cut structure is introduced to the surface of the metal skin, the mechanical response of the paper-cut structure is regulated and controlled by changing characteristic parameters such as a paper-cut pattern and the thickness of the metal skin, so that the structure has the characteristics of high ductility and small plastic deformation, and the structure can recover to original deformation along with retraction of the driving device after expanding and protruding along with the driving device; and the aerodynamic configuration continuity of the wing is ensured. Basic requirements of flexible skin applied to the deformable wing are met, a feasible choice is provided for fusion of an air bag anti-icing and deicing mechanism and the deformable wing, and the method is expected to be widely applied to the fields of aviation, spacecraft deicing, deformable wings and the like.
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