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A Hierarchical Porous Composite Plate with Efficient Vibration Reduction

A composite board and layer technology, applied in the field of materials, can solve the problems of insufficient vibration reduction effect, poor strength, low sound insulation level, etc., and achieve excellent mechanical properties, low density, and the effect of being conducive to vibration reduction and noise reduction.

Active Publication Date: 2021-02-02
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to solve the problems of insufficient vibration damping effect, poor strength and low sound insulation level of traditional boards, and propose a layered porous composite board with high efficiency vibration damping, high strength and good sound insulation effect

Method used

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  • A Hierarchical Porous Composite Plate with Efficient Vibration Reduction
  • A Hierarchical Porous Composite Plate with Efficient Vibration Reduction
  • A Hierarchical Porous Composite Plate with Efficient Vibration Reduction

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Embodiment Construction

[0027] The invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 As shown, the overall structure of the panel is a sandwich structure composed of an upper panel 101 , middle-level porous interlayers 102 , 103 , 104 , and a lower panel 105 to improve the overall mechanical properties.

[0029] Such as figure 2 As shown, the upper panel 101 and the lower panel 105 are composite fiber layers, respectively including the upper aramid fiber layer 201, the middle aluminum fiber layer 202, and the lower aramid fiber layer 203. The sandwich structure composed of the three has good vibration damping Noise reduction effect. The tensile performance of aramid fiber is relatively outstanding, and the corresponding aluminum fiber layer has good compression resistance. The combination of the two through epoxy resin adhesive to form a sandwich board can complement each other and complement each other. At the sam...

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Abstract

The invention provides an efficient vibration-damping layered porous composite board. The efficient vibration-damping layered porous composite board has a sandwich structure and comprises an upper panel, a layered porous interlayer and a lower panel; the upper panel and the lower panel are arranged as complex fiber layers and respectively have the sandwich structure composed of upper and lower aramid fiber paved layers and a middle aluminum fiber interlayer; intersected angles of fibers in the aramid fiber paved layers and the aluminum fiber interlayer are different from each other; the layered porous interlayer is arranged as a compound interlayer composed of upper and lower two-layer truss type porous cores and a middle hemispherical porous core. The invention provides a layered porous composite board with efficient vibration attenuation, high strength and excellent soundproof effect; the problems of inferior damping effect, low strength and low soundproof level of the traditional panels can be solved; the layered porous composite board can be applied to various fields, such as automobiles, aviation and architecture.

Description

technical field [0001] The invention relates to the field of materials, in particular to a hierarchical porous composite plate with high efficiency vibration reduction. Background technique [0002] Vibration is a universal phenomenon in the universe, and various forms of physical phenomena, including sound, light, heat, etc., all contain vibration. Although it has a positive side, in most cases, the destructive impact is immeasurable. For example, vibration will affect the function of precision instruments and equipment, reduce the processing accuracy and finish, and aggravate the fatigue and wear of components. Thereby shortening the service life of machines and structures, vibration may also cause large deformation and damage of structures, some bridges have collapsed due to vibration; flutter of aircraft wings and buffeting of wheels often cause accidents; Vibration will deteriorate the loading conditions; strong vibration and noise will cause serious public hazards. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/02B32B15/088B32B15/14B32B15/20B32B27/02B32B27/12B32B27/34B32B3/24D04H1/4374D04H1/4342D04H1/4234
CPCB32B3/266B32B5/02B32B5/26B32B2262/0261B32B2262/103D04H1/4234D04H1/4342D04H1/4374
Inventor 黄文臻张勇李吉祥陆勇
Owner HUAQIAO UNIVERSITY
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