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Damping and sound-insulating composite structural board

A composite structure and panel technology, which is applied in the field of vibration-damping and sound-insulating materials, to achieve the effects of simple manufacturing process, good vibration-damping performance, and maintaining ecological balance

Inactive Publication Date: 2011-01-26
DALIAN JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional noise control methods mostly use materials with a large damping ratio, use sound insulation, vibration isolation technology, and even re-structural design to control noise, and the results often contradict the goal of lightweight rail trains

Method used

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  • Damping and sound-insulating composite structural board
  • Damping and sound-insulating composite structural board
  • Damping and sound-insulating composite structural board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The panel 2 of the vibration-damping and sound-insulating composite board is AZ31 or AZ31RE (the suffix RE indicates that the alloy is a magnesium alloy modified with mixed rare earth) magnesium alloy board, and the core board 1 is a plant fiber composite ecological board, and its overall structure is as follows figure 1 As shown; the core plate 1 uniformly distributes the special-shaped curved surface 3 on one side, such as figure 2 As shown; the special-shaped curved surface 3 is a combined curved surface composed of a spherical surface and a cylindrical surface, and the focus of the special-shaped curved surface is on the inside of the panel, such as image 3 shown.

Embodiment 2

[0037] The panel 2 of the vibration-damping and sound-insulating composite board is an AZ31 or AZ31RE magnesium alloy board, and the core board 1 is a plant fiber composite ecological board. Its overall structure is as follows: figure 1 As shown; the core plate 1 uniformly distributes the special-shaped curved surface 3 on one side, such as figure 2 Shown; Different from Embodiment 1, the special-shaped curved surface 3 is a spherical surface, and the focus of the special-shaped curved surface is outside the panel, as Figure 4 shown.

Embodiment 3

[0039] The panel 2 of the vibration-damping and sound-insulating composite board is an AZ31 or AZ31RE magnesium alloy board, and the core board 1 is a plant fiber composite ecological board. Its overall structure is as follows: figure 1 As shown; the core plate 1 uniformly distributes the special-shaped curved surface 3 on one side, such as figure 2 As shown; the special-shaped curved surface 3 is a combined curved surface composed of a spherical surface and a cylindrical surface, and the focus of the special-shaped curved surface is on the inside of the panel; different from Example 1, the position of the central axis of the special-shaped curved surface including the focus of the special-shaped curved surface is filled with shock-absorbing and sound-absorbing material 4, and respectively bonded with the core board and the panel, such as Figure 5 shown.

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Abstract

The invention relates to a damping and sound-insulating composite structural board. The damping and sound-insulating composite structural board comprises a plant fiber ecological core board and panels, wherein the panels are bonded with the core board and are magnesium alloy boards; and irregular curved surfaces are uniformly distributed on the single side or both sides of the core board, which are bonded with the panels. By combining the traditional sound insulating technology with structural sound insulating technology, the damping and sound-insulating composite structural board has the obvious advantages of simple process, low cost, low density, high sound insulating performance, mechanical performance, machining performance and surface quality, metallic luster, resource conservation, contribution to the maintenance of ecological balance, and wide application to decorative materials and high-speed trains.

Description

technical field [0001] The invention relates to vibration-damping and sound-insulating materials, in particular to a vibration-damping and sound-insulating composite structural board. Background technique [0002] Due to the enhancement of environmental and forest resource protection awareness, countries gradually restrict the use of wood to make wood-based panels, and wood-based panels made of crop straws have the advantages of saving resources (forest resources), environmental protection and good processing performance, and have become a research hotspot in recent years. , and has been widely used. However, with the improvement of people's quality of life, ordinary wood-based panels can no longer meet people's higher requirements for living environment, such as low noise requirements. [0003] In addition, with the rapid development of China's economy, transportation vehicles represented by rail trains are the most important means of transportation. People put forward hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/30B32B9/02B32B15/04B61D17/04
CPCY02T30/34Y02T30/00
Inventor 刘赵铭权高峰张英波谷秀娥
Owner DALIAN JIAOTONG UNIVERSITY
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