Regular-hexagon honeycomb core with detachable circular noise-reducing structures

A regular hexagonal and honeycomb core technology, applied in the field of aerospace composite materials, can solve the problems of invariable noise reduction performance, complex noise reduction performance, and irregular changes, etc., to achieve repeatable performance design, simple and flexible changes, and low noise reduction. The effect of improved noise performance

Inactive Publication Date: 2017-08-08
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The design of the noise reduction performance of the current honeycomb materials is not only complicated, such as regularly arranged regular hexagonal honeycomb materials, often only have a noise reduction effect on the sound in a certain frequency range, but have poor noise reduction effects on other frequencies. ; Another example is some circular honeycomb materials circumscribed to each other, changing the radius of a circular honeycomb structure, all other circular structures will be changed accordingly, and the changes are irregular, and once the manufacture of this honeycomb material is completed, it includes All performance within the noise reduction performance is immutable

Method used

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  • Regular-hexagon honeycomb core with detachable circular noise-reducing structures
  • Regular-hexagon honeycomb core with detachable circular noise-reducing structures
  • Regular-hexagon honeycomb core with detachable circular noise-reducing structures

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Embodiment 1

[0034] Example 1: Please refer to Figure 1-4 , Figure 9-10 , Figure 11-12 , Figure 15-16The circular honeycomb (2) structure is composed of a hollow aluminum cylinder and three aluminum plates with rectangular grooves at 120° to each other. The aluminum plate (4) of the circular honeycomb structure is connected to the main structure of the regular hexagonal honeycomb (1) There is a rectangular groove at one end. The geometric dimensions of the end of the connection between the missing wall plate (5) and the circular honeycomb (2) structure of the regular hexagonal honeycomb structure are the same as the geometric dimensions of the rectangular groove (6) of the aluminum plate of the circular honeycomb structure. The wall plate (5) where the honeycomb part is missing is inserted into the rectangular groove (6) of the aluminum plate of the circular honeycomb structure. The regular hexagonal honeycomb (1) main structure and the circular honeycomb (2) structure are fastened...

Embodiment 2

[0038] Example 2: Please refer to Figure 1-2 , Figure 5-6 , Figure 9-10 , Figure 13-14 , Figure 17-18 , the circular honeycomb (2) structure is composed of an aluminum hollow cylinder and three aluminum plates that are 120° to each other. The missing wall plate (5) of the regular hexagonal honeycomb is connected to the circular honeycomb (2) and has a rectangular concave at one end. The geometric dimensions of the aluminum plate at one end of the connection between the aluminum plate (4) of the circular honeycomb structure and the main structure of the regular hexagonal honeycomb (1) are the same as the geometric dimensions of the rectangular slot (9) of the wall plate where the regular hexagonal honeycomb part is missing. The aluminum plate (4) of the circular honeycomb structure is inserted into the rectangular groove (9) of the wall plate where the regular hexagonal honeycomb part is missing. The regular hexagonal honeycomb (1) main structure and the circular honey...

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Abstract

The invention discloses a regular-hexagon honeycomb core with detachable circular noise-reducing structures. The regular-hexagon honeycomb core comprises regular-hexagon honeycomb main structures, circular honeycomb structures and Y-shaped aluminum components, wherein the circular honeycomb structures are added among the regular-hexagon honeycomb main structures; part of wall plates at the positions, where the circular honeycomb structures and the Y-shaped aluminum components are mounted, of the regular-hexagon honeycomb main structures are lacking; the extra spaces are suitable for the mounting of the detachable circular honeycomb structures; the radiuses, the heights and the mounting density of the circular honeycomb structures can be adjusted as required; once one circular honeycomb structure is not needed, the circular honeycomb structure can be replaced by one Y-shaped aluminum component; not only the regular-hexagon honeycomb main structures and the circular honeycomb structures but also the regular-hexagon honeycomb main structures and the Y-shaped aluminum components can be fastened by adopting the mutually active force generated from material plasticity deformation; and accordingly, the Y-shaped aluminum components can also be detached.

Description

technical field [0001] The invention belongs to the technical field of aerospace composite materials, in particular to a regular hexagonal honeycomb core with a detachable circular noise reduction structure. Background technique [0002] The honeycomb composite material is similar to the continuous arrangement of I-beam structures, and has excellent compressive and flexural properties, as well as high specific strength and specific modulus. Compared with solid materials of the same material, the honeycomb structure is 70%-90% lighter than the solid material under the same bearing capacity, so the honeycomb material is widely used in the structure of aviation, aerospace vehicles and high-speed trains, because honeycomb The material also has the advantages of shock absorption, sound insulation, heat insulation and strong weather resistance. Honeycomb materials are also used in heat insulation and sound insulation building materials for housing, entertainment venues and other b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16S3/02F16S3/08
Inventor 李成虎韩观林吴锦武
Owner NANCHANG HANGKONG UNIVERSITY
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