Corrugated structure-based sliding type flexible composite material skin

Abstract

The invention relates to a corrugated structure-based sliding type flexible composite material skin. The corrugated structure-based sliding type flexible composite material skin is composed of a composite material corrugated plate, composite material thin plates and an elastomer layer. The connection relations of the composite material corrugated plate, the composite material thin plates and the elastomer layer are as follows: the composite material thin plates are bonded on the horizontal cementing surfaces of the composite material corrugated plate; the left side of each composite material thin plate is cemented on a corresponding horizontal cementing surface at a wave crest, and is in lap joint with one composite material thin plate at an adjacent wave crest at the right side; and the elastomer layer is tightly attached to the composite material thin plates. The characteristic that the composite corrugated plate has large rigidity in a corrugated direction and the characteristic that the composite thin plates have large out-of-plane rigidity are combined, and therefore, a large deformation function can be achieved, out-of-plane aerodynamic loads can be resisted. The corrugated structure-based sliding type flexible composite material skin has the advantages of simple structure and low weight. The flexible skin scheme for a morphing wing is practical and feasible.

Description

technical field [0001] The invention provides a sliding flexible composite material skin based on a corrugated structure, which belongs to the field of composite material structure design. [0002] technical background [0003] In the field of aviation, "variant aircraft" is an aircraft that can enhance the performance of the mission profile by changing its geometric shape, and the most critical technology is the morphing wing. The morphing wing needs a flexible skin that can not only realize the large deformation function in the plane, but also have enough out-of-plane stiffness to bear the aerodynamic load. Currently, there are a variety of materials or structures that can be used for flexible skins of variant aircraft, including shape memory alloys, honeycomb structures, and telescopic structures, but these structures are difficult to meet in terms of weight, structural complexity, or maintaining a smooth aerodynamic surface. Require. Therefore, the present invention pro...

AI Technical Summary

Problems solved by technology

Currently, there are a variety of materials or structures that can be used for flexible skins of variant aircraft, including shape memory alloys, honeycomb structures, and telescopic structures, but these structures are difficult to meet in terms of weight, structural complexity, or maintaining a smooth aerodynamic surface. Require

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