Wing with high intensity and high stiffness

Abstract

The invention relates to a wing, in particular to a wing with high strength and high rigidity. The invention solves the problems that the whole rigidity and strength of the wing are bad due to non-continuous fiber of the upper envelope and lower envelope of the existing wing, the wing is easy to generate local destabilization and warpage, the wing handle has low bearing strength, the deformation of the wing handle and the wing is not harmonized, and the mechanical processing efficiency of the wing handle is low. The wing comprises three proposals: proposal 1, the envelope is covered on the external wall of the reinforced rib formed by a first core pipe and a second core pipe; two cores are respectively inserted inside the first core pipe and the second core pipe; proposal 2, the envelope is covered on the external wall of the reinforced rib formed by a first core pipe, a second core pipe and a third core pipe; three cores are respectively inserted inside the first core pipe, the second core pipe and the third core pipe; proposal 3, the envelope is covered on the external wall of the reinforced rib formed by a first core pipe, a second core pipe and two fourth core pipes; four cores are respectively inserted inside the first core pipe, the second core pipe and two fourth core pipes; the wing has good whole rigidity and strength and high bearing strength.

Description

technical field [0001] The present invention relates to a wing. Background technique [0002] Composite materials are the material basis of high-performance products and an important guarantee for the realization of advanced designs. Compared with other materials, composite materials have high specific strength and specific stiffness. Under the trend of full composite materials for wings at home and abroad, According to the development plan of different specifications and types of airfoils in China, for the airfoils with large aspect ratio and thin wings, the wingspan is large, the airfoil is thin, and the chord length is small. In order to prevent the large deformation of the airfoil from damage, the structure of the airfoil To have relatively high strength and rigidity. The first structure of the existing fiber-reinforced resin-based composite airfoil adopts the structural form of upper skin, lower skin and internal vertical and horizontal ribs. The upper skin, lower skin...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the upper and lower skins of the existing fins have poor overall rigidity and strength due to the discontinuity of fibers, local instability and warping of the fins are easy to occur, and the bearing strength of the wing shank is low. The problems of incongruous deformation between the fins and the low efficiency of machining of the wing shank, thus providing a wing with high strength and high rigidity

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