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Sound insulation airplane wallboard

A sound insulation and aircraft technology, applied in the direction of fuselage insulation, etc., can solve problems such as difficulty in aircraft, overcome the limitation of space weight and improve the overall sound insulation effect.

Active Publication Date: 2014-12-17
COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the dual limitations of aircraft space and weight, noise reduction technology for aircraft cabin noise has always been a difficult point in aircraft design

Method used

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  • Sound insulation airplane wallboard
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  • Sound insulation airplane wallboard

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Embodiment Construction

[0023] In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention.

[0024] In the following detailed description, directional terms, such as "front", "rear", "left", "right", "outer side", "inner side", etc., are used with reference to directions described in the drawings. Components of embodiments of the present invention may be positioned in a variety of different orientations, and directional terms are used for purposes of illustration and not limitation.

[0025] Such as Figure 2-5 As shown, the aircra...

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Abstract

The invention provides a sound insulation airplane wallboard. The sound insulation airplane wallboard comprises a skin positioned at an outer side, an internal decoration board positioned at an inner side and sound insulation and heat insulation cotton positioned between the skin and the internal decoration board, wherein the sound insulation airplane wallboard also comprises a phonon crystal material layer positioned between the sound insulation and heat insulation cotton and the internal decoration plate. The sound insulation airplane wallboard increases the effective sound absorption thickness of the sound insulation and heat insulation cotton without increasing the weight and space basically in order to improve the integral sound absorption effect of the sound insulation and heat insulation cotton.

Description

technical field [0001] The invention belongs to the technical field of noise reduction in civil aircraft engineering, and in particular relates to an aircraft sound insulation panel based on the local resonance phonon crystal noise reduction technology. Background technique [0002] With the development of technology and market competition, commercial aircraft are paying more and more attention to the quiet cabin environment, and are constantly pursuing a low-noise cabin environment. However, due to the dual limitations of aircraft space and weight, noise reduction technology for aircraft cabin noise has always been a difficult point in aircraft design. [0003] Generally, the noise reduction technology in the aircraft cabin is realized based on the principle of sound absorption, sound insulation, vibration isolation and the combination of the above-mentioned sound insulation and vibration isolation methods. Sound absorption and noise reduction technologies and sound insula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C1/40
Inventor 吕军孟庆功韩峰冯盟胡莹黄友何立燕冯梓鑫
Owner COMAC
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