Honeycomb sandwich board with embedded multi-level structure

A sandwich panel and multi-level technology, applied in the field of composite materials, can solve the problems of serious noise and vibration in the cabin, and achieve the effects of improving safety level, saving materials and stabilizing the structure

Active Publication Date: 2019-03-19
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the serious problem of noise and vibration in the current cabin, aiming at reducing the weight while absorbing the noise and vibration in the cabin, and improving the comfort of passengers on the premise of meeting the strength requirements

Method used

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  • Honeycomb sandwich board with embedded multi-level structure
  • Honeycomb sandwich board with embedded multi-level structure
  • Honeycomb sandwich board with embedded multi-level structure

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Embodiment Construction

[0029] The description will be further elaborated below in conjunction with specific embodiments.

[0030] A kind of honeycomb sandwich panel embedded with multi-level structure provided by this embodiment, the overall schematic diagram is as follows figure 1 As shown, it consists of upper and lower panels 101 and a middle honeycomb core 102 .

[0031] Among them, the upper and lower panels 101 are made of carbon fiber plates, the tensile strength of which is several times that of ordinary steel, and has excellent creep resistance, corrosion resistance and shock resistance.

[0032] The honeycomb core structure 102 is made of aluminum alloy, which is obtained by combining multiple square bellows arrays, such as figure 2 As shown, the corrugation of the corrugated pipe is induced by a sinusoidal curve, which has a better effect of absorbing vibration than the traditional triangular cross-section corrugated pipe.

[0033] A hierarchical composite structure is embedded inside ...

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Abstract

The invention provides a honeycomb sandwich board with an embedded multi-level structure. The sandwich board is of a sandwich structure composed of an upper panel, a lower panel and a middle honeycombcore, wherein the honeycomb core is formed by combining multiple square corrugated pipe arrays; corrugations of the corrugated pipes form a sine curve; a hierarchical composite structure is embeddedinto the square corrugated pipes along a height direction, and the first layer is an energy absorption board from top to bottom and is formed by arranging multiple energy absorption cells along the length direction of the square corrugated pipes; the second layer is a spiral pipe arranged along the height of the square corrugated pipes, and the upper and lower ends of the spiral pipe respectivelyform a sandwich structure with two polyester fiber boards; and the third layer is of a lattice structure and is composed of multiple lattice cells arrays. According to the honeycomb sandwich board with the embedded multi-level structure, the problem that noise and vibration in the conventional cabin are serious can be solved, the honeycomb sandwich board aims to realize lightweight while absorbingthe noise and vibration in the cabin, and comfort of passengers is improved on premise of meeting the strength requirement.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a honeycomb sandwich panel embedded with a multi-level structure. Background technique [0002] In recent years, with the continuous improvement of people's living standards, tourism has become the best choice for people's leisure and vacation, and it has become a common phenomenon for people to choose airplanes as a means of travel. However, the aircraft is a closed space, and the noise and vibration in the cabin have a certain impact on people's physical and mental health and flight experience. Therefore, people hope to reduce the noise and vibration in the aircraft cabin, so it is necessary to reduce the noise in the cabin as much as possible. and vibration absorption. Since the aircraft is very sensitive to its own weight, this solution needs to be carried out without increasing the aircraft's own weight. In recent years, the honeycomb structure has been widely used in air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/06B32B27/36B32B3/12
CPCB32B3/12B32B5/02B32B2262/0276
Inventor 李吉祥张勇黄文臻何宁
Owner HUAQIAO UNIVERSITY
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