CN211307733U - Multilayer composite damping sound insulation structure - Google Patents
Multilayer composite damping sound insulation structure Download PDFInfo
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- CN211307733U CN211307733U CN201922305059.2U CN201922305059U CN211307733U CN 211307733 U CN211307733 U CN 211307733U CN 201922305059 U CN201922305059 U CN 201922305059U CN 211307733 U CN211307733 U CN 211307733U
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Abstract
The utility model provides a compound damping sound insulation structure of multilayer belongs to the damping and falls the technical field of making an uproar, especially relates to a compound damping sound insulation structure of multilayer. The problem of current boats and ships cabin wallboard be difficult to have concurrently light and sound insulation demand is solved. The honeycomb aluminum core material and the foamed aluminum core material are fixedly bonded through a hot melt adhesive film, the honeycomb aluminum core material is connected with the foamed aluminum core material, the honeycomb aluminum core material is fixedly bonded through the hot melt adhesive film, the foamed aluminum core material is connected with the viscoelastic damping layer, and the viscoelastic damping layer is connected with the second metal panel. The wall plate is mainly used for the wall plate of a ship cabin.
Description
Technical Field
The utility model belongs to the technical field of make an uproar falls in the damping, especially relate to a compound damping sound insulation structure of multilayer.
Background
The wall plate materials widely used for ship cabin decoration and separation at present mainly comprise composite rock wool boards and honeycomb aluminum boards. The composite rock wool board is composed of two galvanized face boards and a rock wool core material in the middle interlayer, and has the characteristics of flame retardance, no toxicity and the like, and the sound insulation quantity of the composite rock wool board is related to the thickness and the surface density. The honeycomb aluminum plate is two layers of aluminum panels, the middle interlayer is a honeycomb aluminum core material, and the honeycomb aluminum plate has the advantages of light weight, high specific strength and the like, but the sound insulation capacity is generally not high, and the honeycomb aluminum plate does not have a sound insulation function generally. Along with the continuous improvement of the noise level of the ship cabin and the trend of light weight of the ship, the two boards are difficult to adapt to the requirements of light weight and sound insulation of the built-in board.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem among the prior art, provide a compound damping sound insulation structure of multilayer.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a compound damping sound insulation structure of multilayer, it includes first metal decking, honeycomb aluminium core, foamed aluminium core, viscoelastic damping layer and second metal decking, first metal decking links to each other with honeycomb aluminium core, it is fixed to bond through hot melt adhesive film between first metal decking and the honeycomb aluminium core, honeycomb aluminium core links to each other with foamed aluminium core, it is fixed to bond through hot melt adhesive film between honeycomb aluminium core and the foamed aluminium core, the foamed aluminium core links to each other with viscoelastic damping layer, viscoelastic damping layer links to each other with the second metal decking.
Furthermore, the first metal panel and the second metal panel are made of aluminum alloy plates with the thickness of 0.8-1 mm.
Furthermore, the outer surfaces of the first metal panel and the second metal panel are provided with PVC films or fluorocarbon resin coatings.
Further, the thickness of the honeycomb aluminum core material is 12 mm.
Furthermore, the thickness of the foamed aluminum core material is 10mm, the aperture is 1-3 mm, and the porosity is 80% -90%.
Furthermore, the viscoelastic damping layer is embedded into the holes on the surface of the foamed aluminum core material at the connecting surface of the foamed aluminum core material and the viscoelastic damping layer.
Furthermore, the thickness of the viscoelastic damping layer is 1mm, and the surface density is 1.6kg/m2。
Furthermore, the viscoelastic damping layer is made of a polyurethane viscoelastic damping material, and the loss factor is greater than 0.3.
Compared with the prior art, the beneficial effects of the utility model are that: the problem of current boats and ships cabin wallboard be difficult to have concurrently light and sound insulation demand is solved. The novel honeycomb and foamed aluminum core materials are adopted, and both the honeycomb and the foamed aluminum core materials have the characteristics of light weight and good mechanical properties, so that the whole sound insulation structure has good specific strength and specific rigidity. The closed-cell foamed aluminum core material, the viscoelastic damping material and the metal panel are compounded, the closed-cell foamed aluminum core material has good acoustic performance, and the viscoelastic damping material is used between the foamed aluminum and the second metal panel, so that the damping of the sound insulation structure is enhanced, and the sound insulation quantity of the sound insulation structure is improved. The honeycomb aluminum core material is adopted, the space is divided into a plurality of closed cells by the honeycomb structure, air flowing is prevented, sound waves are blocked, and the sound insulation effect of the sound insulation structure is further enhanced. The sound insulation structure has the advantages of high sound insulation, good bending resistance and compression resistance, light weight and the like.
Drawings
Fig. 1 is a schematic view of a multilayer composite damping sound insulation structure according to the present invention.
1-a first metal panel, 2-a honeycomb aluminum core material, 3-a foamed aluminum core material, 4-a viscoelastic damping layer and 5-a second metal panel.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely explained below with reference to the drawings in the embodiment of the present invention.
Referring to fig. 1 to illustrate the present embodiment, a multilayer composite damping sound insulation structure comprises a first metal panel 1, a honeycomb aluminum core material 2, a foamed aluminum core material 3, a viscoelastic damping layer 4 and a second metal panel 5, wherein the first metal panel 1 is connected with the honeycomb aluminum core material 2, the first metal panel 1 is fixedly bonded with the honeycomb aluminum core material 2 through a hot melt adhesive film, the honeycomb aluminum core material 2 is connected with the foamed aluminum core material 3, the honeycomb aluminum core material 2 is fixedly bonded with the foamed aluminum core material 3 through a hot melt adhesive film, the foamed aluminum core material 3 is connected with the viscoelastic damping layer 4, and the viscoelastic damping layer 4 is connected with the second metal panel 5.
In the embodiment, the first metal panel 1 and the second metal panel 5 are both made of aluminum alloy plates with the thickness of 0.8-1 mm, and the outer surfaces of the first metal panel and the second metal panel are provided with PVC films or fluorocarbon resin coatings; the thickness of the honeycomb aluminum core material 2 is 12mm, the thickness of the foam aluminum core material 3 is 10mm, the pore diameter is 1-3 mm, the porosity is 80% -90%, the viscoelastic damping layer 4 is made of polyurethane viscoelastic damping material, the loss factor is greater than 0.3, the thickness of the viscoelastic damping layer 4 is 1mm, and the surface density is 1.6kg/m2. The first metal panel 1 and the honeycomb aluminum core material 2 as well as the honeycomb aluminum core material 2 and the foamed aluminum core material 3 are bonded and fixed by hot melt adhesive films, the polyurethane viscoelastic damping material used by the viscoelastic damping layer 4 has good adhesiveness during curing, the foamed aluminum core material 3 is immersed in the viscoelastic damping material premix, the foamed aluminum core material 3 and the viscoelastic damping layer 4 are connected at the surface, and the viscoelastic damping layer 4 is embedded into the surface holes of the foamed aluminum core material 3In the hole. And a layer of viscoelastic damping material with the thickness of about 1mm is blade-coated on the inner side of the second metal panel 5, and is bonded with one side of the foamed aluminum core material 3 filled with the viscoelastic damping material to form a sound insulation structure whole, and then hot-press compounding and cold-press shaping are carried out.
The multilayer composite damping sound insulation structure provided by the utility model is introduced in detail, and the principle and the implementation mode of the utility model are explained by applying specific examples, and the explanation of the above examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (8)
1. A multilayer composite damping sound insulation structure is characterized in that: it includes first metal decking (1), honeycomb aluminium core (2), foamed aluminium core (3), viscoelastic damping layer (4) and second metal decking (5), first metal decking (1) links to each other with honeycomb aluminium core (2), it is fixed to bond through hot melt adhesive film between first metal decking (1) and the honeycomb aluminium core (2), honeycomb aluminium core (2) link to each other with foamed aluminium core (3), it is fixed to bond through hot melt adhesive film between honeycomb aluminium core (2) and the foamed aluminium core (3), foamed aluminium core (3) link to each other with viscoelastic damping layer (4), viscoelastic damping layer (4) link to each other with second metal decking (5).
2. The multilayer composite damping sound insulation structure of claim 1, characterized in that: the first metal panel (1) and the second metal panel (5) are both made of aluminum alloy plates with the thickness of 0.8-1 mm.
3. The multilayer composite damping sound insulation structure of claim 1, characterized in that: and PVC films or fluorocarbon resin coatings are arranged on the outer surfaces of the first metal panel (1) and the second metal panel (5).
4. The multilayer composite damping sound insulation structure of claim 1, characterized in that: the thickness of the honeycomb aluminum core material (2) is 12 mm.
5. The multilayer composite damping sound insulation structure of claim 1, characterized in that: the thickness of the foamed aluminum core material (3) is 10mm, the pore diameter is 1-3 mm, and the porosity is 80-90%.
6. The multilayer composite damping sound insulation structure of claim 1, characterized in that: the viscoelastic damping layer (4) is embedded into the holes on the surface of the foamed aluminum core material (3) at the position of the surface where the foamed aluminum core material (3) is connected with the viscoelastic damping layer (4).
7. The multilayer composite damping sound insulation structure of claim 1, characterized in that: the thickness of the viscoelastic damping layer (4) is 1mm, and the surface density is 1.6kg/m2。
8. The multilayer composite damping sound insulation structure of claim 1, characterized in that: the viscoelastic damping layer (4) is made of polyurethane viscoelastic damping material, and the loss factor is larger than 0.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922305059.2U CN211307733U (en) | 2019-12-19 | 2019-12-19 | Multilayer composite damping sound insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922305059.2U CN211307733U (en) | 2019-12-19 | 2019-12-19 | Multilayer composite damping sound insulation structure |
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| CN211307733U true CN211307733U (en) | 2020-08-21 |
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| CN201922305059.2U Active CN211307733U (en) | 2019-12-19 | 2019-12-19 | Multilayer composite damping sound insulation structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112519330A (en) * | 2020-11-04 | 2021-03-19 | 东南大学 | Damping metamaterial damping plate |
| CN115339217A (en) * | 2022-09-21 | 2022-11-15 | 马鞍山哈德莱夫新材料有限公司 | Edge folding process of aluminum honeycomb decorative plate |
-
2019
- 2019-12-19 CN CN201922305059.2U patent/CN211307733U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112519330A (en) * | 2020-11-04 | 2021-03-19 | 东南大学 | Damping metamaterial damping plate |
| CN112519330B (en) * | 2020-11-04 | 2022-04-29 | 东南大学 | Damping metamaterial damping plate |
| CN115339217A (en) * | 2022-09-21 | 2022-11-15 | 马鞍山哈德莱夫新材料有限公司 | Edge folding process of aluminum honeycomb decorative plate |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Dongkai Inventor after: Dong Dan Inventor after: Lin Zhuang Inventor after: Shao Yawei Inventor before: Yang Dongkai Inventor before: Dong Dan |
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| CB03 | Change of inventor or designer information |