Geometric gradual change folding line pipe

Abstract

The invention discloses a geometric gradual change folding line pipe. The folding line pipe can be divided into a plurality of modules in the axial direction and peripheral direction, and each module is pre-folded according to a specific paper folding pattern. The modules are pre-folded according to two basic paper folding patterns. The geometric size of each module in the folding line pipe can be changed through seven methods of interpedently changing the side length, included angle and number of the modules, simultaneously changing the side length and included angle, simultaneously changing the side length and number, simultaneously changing the included angle and number, and simultaneously changing the side length, included angle and number, the seven changing methods can be carried out separately or simultaneously in the axial direction and peripheral direction of the folding line pipe, and therefore geometric gradual change of the geometric gradual change folding line pipe in the two directions is realized. The geometric gradual change folding line pipe is novel in structure, rich in design parameter, adjustable in rigidity and buffering and energy absorption performance and capable of meeting the structure bearing and impact resistance requirements under different conditions. The geometric gradual change folding line pipe can be formed by one flat plate through rigid folding, machining is convenient, production cost is lowered, and machining accuracy is improved.

Description

technical field [0001] The present invention relates to a thin-walled tubular structure, and more particularly to a bellows tube with prefolded and geometrically tapered properties. Background technique [0002] Tubular structures have been around for a long time, and ordinary round tubes in life are one of them. However, with the development of industrial technology, tubular structures are used in more and more fields, no longer limited to traditional construction and machinery, but in automobiles, medical care, and aerospace. Correspondingly, the requirements for its structure and performance characteristics are getting higher and higher, and ordinary round tubes and square tubes can no longer meet the needs of production and life. [0003] At present, there are many new tubular structures, one of which is the pleated tube with origami texture on the surface. For example, the patent name is "Deployable structure", and the patent publication number is US6233880B, which pro...

AI Technical Summary

Problems solved by technology

[0002] Tubular structures have been around for a long time, and ordinary round tubes in life are one of them. However, with the development of industrial technology, tubular structures are used in more and more fields, no longer limited to traditional construction and machinery, but in automobiles, medical care, aerospace Correspondingly, the requirements for its structure and performance characteristics are getting higher and higher, and ordinary round tubes and square tubes can no longer meet the needs of production and life.

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