CN201773576U - A vibration-damping and sound-insulating composite structural panel - Google Patents
A vibration-damping and sound-insulating composite structural panel Download PDFInfo
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- CN201773576U CN201773576U CN2010202850046U CN201020285004U CN201773576U CN 201773576 U CN201773576 U CN 201773576U CN 2010202850046 U CN2010202850046 U CN 2010202850046U CN 201020285004 U CN201020285004 U CN 201020285004U CN 201773576 U CN201773576 U CN 201773576U
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- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 238000013016 damping Methods 0.000 title claims description 29
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 239000011358 absorbing material Substances 0.000 claims 2
- 238000009413 insulation Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 5
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- 230000002159 abnormal effect Effects 0.000 description 41
- 238000010276 construction Methods 0.000 description 12
- 235000013311 vegetables Nutrition 0.000 description 9
- 230000002146 bilateral effect Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
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- 230000001070 adhesive effect Effects 0.000 description 2
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- 230000009467 reduction Effects 0.000 description 2
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- 239000002671 adjuvant Substances 0.000 description 1
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- 229910045601 alloy Inorganic materials 0.000 description 1
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- 231100000252 nontoxic Toxicity 0.000 description 1
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Abstract
The utility model relates to a shock-absorption sound-insulation composite structural board, which comprises a plant fiber ecological core board and a face board which are adhered. The face board is made of magnesium alloys, special-shaped curved surfaces are evenly distributed on a single side or double sides of the adhered surface of the core board with the face board. By combining traditional sound insulation technology and structural sound absorption technology, the shock-absorption sound-insulation composite structural board has the remarkable advantages of simple process, low cost, low density, fine sound insulation performance, mechanical property and processing property, fine surface quality, metallic luster, resource conservation, favor for keeping ecological balance and capability of being widely applied to decorative materials and high-speed trains.
Description
Technical field
The utility model relates to the vibration damping sound-proof material, relates in particular to a kind of vibration damping sound insulation composite structure sheet material.
Background technology
Because the enhancing of environment and forest conservation consciousness; various countries progressively limit and adopt timber to make wood-based plate; and the wood-based plate that adopts agricultural crop straw to make has the advantages such as (forest reserves), environmental protection and good processing properties that economize on resources; become the research focus in recent years, and obtained widespread use.But along with the raising of people's living standard, common wood-based plate can not satisfy people's requirement higher to living environment, as the low noise requirement.
In addition, along with fast development of Chinese economy, the transportation and communication that with the track train is representative is as the most important vehicles, people have not only proposed high request to its performance, and its riding comfort also proposed high request, the noise level in the car is an important indicator that embodies its comfortableness.The harm of noise is many-sided.It not only causes very big interference to people's normal life and work, influence people's talk, thinking, make the people produce agitation, slow in reacting, inefficiency, the notice of disperseing the people, cause operating irregularity, and serious be that noise can make people's hearing and health suffer damage, give rise to diseases.Therefore, in order to improve the comfortableness of track train, many in the world countries have all formulated strict control criterion to the internal car noise level, and with the control of internal car noise as important research direction.Traditional noise control method materials that adopt big damping ratio utilize sound insulation, vibration isolation technique even carry out structural design again and control noise more, and the result often contradicts with the light-weighted target of track train.
The utility model content
In view of existing in prior technology the problems referred to above, the utility model is based on economizing on resources, and the consideration of performances such as raising vibration damping sound insulation discloses a kind of vibration damping sound insulation composite construction board.
Sound insulation principle of the present utility model combines traditional sound insulation technology and structure noise reduction technology, one side adopts damping, damping property is good and density is little, the magnesium alloy of light weight is made the absorbing acoustic absorbant of panel and interpolation, realizes eliminating the noise and the focusing absorbing with sound by special structural design on the other hand.
Technical solution of the present utility model is achieved in that
It comprises ecological central layer of vegetable fibre and magnesium alloy panel, and central layer is bonding forms for described magnesium alloy panel and vegetable fibre ecology.
Further, on the described central layer with the adhesive surface of panel the one-sided or bilateral abnormal curved surface that evenly distributes;
Described abnormal curved surface is meant composite surface or the parabolic composite surface that combines with cylinder that sphere, parabola, sphere combine with cylinder.
Further, the equally distributed abnormal curved surface of described bilateral evenly is dislocatedly distributed.The foursquare center that connects into as the focus of 4 abnormal curved surfaces of the corresponding opposite side of any one focus of the abnormal curved surface of a side.
Further, be filled with absorbing and/or acoustic absorbant in the described abnormal curved surface or between panel and the abnormal curved surface.
Further, described absorbing and/or acoustic absorbant are positioned at the position of the central shaft of the abnormal curved surface that comprises described abnormal curved surface focus, and be bonding respectively with described central layer and panel;
Described abnormal curved surface focus is meant the convergent point of sound wave after the abnormal curved surface reflection.
Sound is by the sound wave transmission, and for vibration damping isolating composite plate described in the utility model, sound wave transmission within it is divided into following a few step:
1, sound wave is passed to the magnesium alloy panel surface, has acoustic wave segment this moment and meets the magnesium alloy panel and reflect, and acoustic wave segment then sees through the magnesium alloy panel, because magnesium alloy vibration damping, damping capacity are better, the transmitted acoustic pulse sound intensity will weaken;
2, the sound wave that penetrates the magnesium alloy panel continues to be passed to central layer abnormal curved surface place:
(1) acoustic wave segment can reflect, and most of reflection wave converges at abnormal curved surface focus place, and is reverse as reflective sound wave, and then the sound intensity weakens or offsets herein; As reflection wave in the same way, then the sound intensity strengthens herein, by the sound absorption added and/or absorbing absorbed sound wave herein, to reach the noise elimination effect.
(2) acoustic wave segment penetrates central layer and arrives opposite side magnesium alloy panel at the interface, the non-dense plates of central layer described in the utility model, there are a large amount of porous interfacial layers in inside, sound wave penetrates in the central layer process, have a large amount of sound waves by porous interfacial layer scattering, absorption, in addition the sound-absorbing adjuvant that adds of this central layer also can play certain sound intensity effect that reduces.
3, sound wave is passed to opposite side magnesium alloy panel at the interface, still has acoustic wave segment reflection (noise-cancelling theory as mentioned above), and the acoustic wave segment transmission is passed to magnesium alloy panels outside (the transmitted acoustic pulse sound intensity continues to weaken).
In sum, after sound wave was passed to opposite side from a side of vibration damping isolating composite plate described in the utility model, the sound wave sound intensity significantly weakened, and reaches soundproof effect preferably.
Compared with prior art, the utlity model has following remarkable advantage:
1, described magnesium alloy panel density is little, and damping, damping property are good, and surface quality is good, has metallic luster, and can paint in the surface.
2, adopt agricultural crop straw to make central layer, substitute timber, economize on resources, be beneficial to and keep the ecologic equilibrium, and binder free or employing non-toxic adhesive, pollution-free, environmental protection.
3, special structure noise reduction designs the principle that utilization is eliminated the noise with sound and focused on absorbing, makes the more significant vibration damping sound insulation value of having of composite construction board.Guarantee composite construction board simultaneously.
4, the composite construction board manufacture craft is simple, and density is little, and cost is low, and has mechanical property and processing characteristics preferably, can be widely used in ornament materials and bullet train compartment.
Description of drawings
Fig. 1 is a vibration damping isolating composite plate structural representation;
Fig. 2 is one-sided abnormal curved surface (sphere+cylinder) central layer vertical view;
Fig. 3 is central layer abnormal curved surface (sphere+cylinder) diagrammatic cross-section;
Fig. 4 is central layer abnormal curved surface (sphere) diagrammatic cross-section;
Fig. 5 is central layer abnormal curved surface (sphere+cylinder) diagrammatic cross-section of adding absorbing (sound) material;
Fig. 6 is central layer abnormal curved surface (parabola) diagrammatic cross-section;
Fig. 7 is a bilateral abnormal curved surface central layer vertical view.
Embodiment
The panel 2 of vibration damping isolating composite plate is AZ31 or AZ31RE (wherein suffix RE represents that this alloy is the magnesium alloy with the mishmetal modification) magnesium alloy plate, and central layer 1 is a vegetable fibre complex ecological plate, and its one-piece construction as shown in Figure 1.
Embodiment 2
The panel 2 of vibration damping isolating composite plate is AZ31 or AZ31RE magnesium alloy plate, and central layer 1 is a vegetable fibre complex ecological plate, and its one-piece construction as shown in Figure 1; The one-sided even distribution abnormal curved surface 3 of central layer, as shown in Figure 2; Described abnormal curved surface 3 is the composite surface that sphere and cylinder constitute, and the abnormal curved surface focus is in the panel inboard, as shown in Figure 3.
The panel 2 of vibration damping isolating composite plate is AZ31 or AZ31RE magnesium alloy plate, and central layer is a vegetable fibre complex ecological plate, and its one-piece construction as shown in Figure 1; The one-sided even distribution abnormal curved surface 3 of central layer, as shown in Figure 2; Different with embodiment 2, described abnormal curved surface 3 is a sphere, and the focus of abnormal curved surface is in panels outside, as shown in Figure 4.
The panel 2 of vibration damping isolating composite plate is AZ31 or AZ31RE magnesium alloy plate, and central layer 1 is a vegetable fibre complex ecological plate, and its one-piece construction as shown in Figure 1; Central layer 1 one-sided even distribution abnormal curved surface 3, as shown in Figure 2; Described abnormal curved surface 3 is the composite surface that sphere and cylinder constitute, and the abnormal curved surface focus is in the panel inboard; Different with embodiment 2, comprise that the position of central shaft of the abnormal curved surface of described abnormal curved surface focus is filled with absorbing and acoustic absorbant 4, and bonding respectively with described central layer 1 and panel 2, as shown in Figure 5.
Embodiment 5
The panel 2 of vibration damping isolating composite plate is AZ31 or AZ31RE magnesium alloy plate, and central layer 1 is a vegetable fibre complex ecological plate, and its one-piece construction as shown in Figure 1; Central layer 1 one-sided even distribution abnormal curved surface, as shown in Figure 2; Different with embodiment 2, described abnormal curved surface 3 is parabolic, as shown in Figure 4.
Embodiment 6
The panel 2 of vibration damping isolating composite plate is AZ31 or AZ31RE magnesium alloy plate,, central layer 1 is a vegetable fibre complex ecological plate, its one-piece construction is as shown in Figure 1; Different with the foregoing description, the bilateral of described central layer 1 abnormal curved surface 3 that evenly distributes, wherein the abnormal curved surface of a side is the composite surface that sphere and cylinder constitute, its focus is in the panel inboard, as shown in Figure 3; The abnormal curved surface of opposite side is a sphere, and its focus is in panels outside, as shown in Figure 4.The abnormal curved surface of both sides is dislocatedly distributed, i.e. the foursquare center that connects into of 4 sphere centre ofs sphere of the corresponding opposite side in the center of any one sphere of a side, as shown in Figure 7.
Embodiment 7
The panel 2 of vibration damping isolating composite plate is AZ31 or AZ31RE magnesium alloy plate, and central layer 1 is a vegetable fibre complex ecological plate, and its one-piece construction as shown in Figure 1; Identical with embodiment 6, the bilateral of described central layer 1 abnormal curved surface 3 that evenly distributes, and the abnormal curved surface of both sides is dislocatedly distributed, as shown in Figure 7; But different with embodiment 5, the equally distributed abnormal curved surface 3 of central layer 1 bilateral is parabola, as shown in Figure 6.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; such as; other array configurations of the one-sided or bilateral of other magnesium alloy panel, described abnormal curved surface and the one-sided or bilateral of abnormal curved surface are filled with absorbing and acoustic absorbant etc., also belong to the row of protection.Anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within the protection domain of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202850046U CN201773576U (en) | 2010-08-03 | 2010-08-03 | A vibration-damping and sound-insulating composite structural panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202850046U CN201773576U (en) | 2010-08-03 | 2010-08-03 | A vibration-damping and sound-insulating composite structural panel |
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| Publication Number | Publication Date |
|---|---|
| CN201773576U true CN201773576U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202850046U Expired - Lifetime CN201773576U (en) | 2010-08-03 | 2010-08-03 | A vibration-damping and sound-insulating composite structural panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954760A (en) * | 2010-08-03 | 2011-01-26 | 大连交通大学 | Damping and sound-insulating composite structural board |
-
2010
- 2010-08-03 CN CN2010202850046U patent/CN201773576U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954760A (en) * | 2010-08-03 | 2011-01-26 | 大连交通大学 | Damping and sound-insulating composite structural board |
| CN101954760B (en) * | 2010-08-03 | 2012-11-21 | 大连交通大学 | Damping and sound-insulating composite structural board |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110323 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |