Multi-grade accordion type honeycomb structure

A honeycomb structure, accordion technology, applied in the direction of sheet/board, building elements, etc., can solve the problems of resistance to local buckling deformation and low local collapse, and achieve the effect of optimized design and good bearing performance

Inactive Publication Date: 2019-07-09
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for the traditional corrugated sandwich structure, its bending resistance perpendicular to the corrugation direction is significantly greater than that parallel to the corrugation direction; the shear resistance parallel to the corrugation direction is signif

Method used

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  • Multi-grade accordion type honeycomb structure
  • Multi-grade accordion type honeycomb structure
  • Multi-grade accordion type honeycomb structure

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[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, the present invention provides a multi-level accordion honeycomb structure, and its representative cells are figure 2 (a) Intermediate level 1 accordion cell and figure 2 (b) The middle-level corrugated board sandwich cells are composited, and the corrugated sandwich board replaces the solid cell wall of the accordion honeycomb structure to obtain the multi-stage accordion honeycomb structure of the present invention. According to the relative relationship between the cells, the representative cells can be decomposed into three types of edges: the first integral edge 1 and the second integral edge 4, the first half edge 2 and the second half edge 5, and the first wave edge 3 and the second edge. Wave edge 6. The first whole edge 1 and the second whole edge 4, the first half edge 2 and the second half edge 5, and the first wave...

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Abstract

The invention discloses a multi-grade accordion type honeycomb structure. The multi-grade accordion type honeycomb structure is formed in the manner that a plurality of two grades of representative cells are arranged in a cyclically staggered manner. Each representative cell at the first grade is of a wavy structure which is formed by stacking two identical rhombus structures in parallel in a staggered manner and has a certain wall thickness. Each representative cell at the second grade is of a corrugated sandwich structure and used for combining the two grades of representative cells, so thatthe multi-grade accordion type honeycomb structure can be obtained. According to the multi-grade accordion type honeycomb structure, external load is absorbed by means of the multi-grade deformationmanner, staged distribution of the load is conducted at the same time, so that the structure mass is remarkably lowered, meanwhile repeated bearing can be conducted; and in this way, the bearing capacity and energy efficiency of the multi-grade accordion type honeycomb structure are improved, and the lightweight design target is fully achieved. In addition, for different loading conditions and work environments, the side length, the flare angle, the wall thickness and other parameters of each cell can be adjusted, optimizing design is conducted on the multi-grade accordion type honeycomb structure, and the engineering application value of the structure is brought into full play.

Description

technical field [0001] The invention belongs to the field of lightweight structure design, and in particular relates to a multi-level accordion type honeycomb structure. Background technique [0002] The load-bearing performance of a structure and its own weight have always been a contradictory set of relationships in engineering. The stronger the load-bearing capacity, the heavier the structure. With the rapid development of modern society, how to greatly reduce the quality of structures while improving their load-bearing capacity has become a focus of attention in the fields of aerospace, civil engineering, marine ships, vehicle engineering, energy power, and national defense industries. In this context, human beings learn from nature and design and prepare a variety of lightweight porous structures from natural structures such as animal bones, bee nests, bird wings, and plant roots. It has excellent performance and good designability in terms of wave absorption, heat dis...

Claims

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Application Information

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IPC IPC(8): F16S1/02
CPCF16S1/02
Inventor 秦庆华李剑峰伍天星张威张建勋王铁军
Owner XI AN JIAOTONG UNIV
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