CN109944342A - A kind of cavity type interlayer metamaterial structure - Google Patents
A kind of cavity type interlayer metamaterial structure Download PDFInfo
- Publication number
- CN109944342A CN109944342A CN201711391233.9A CN201711391233A CN109944342A CN 109944342 A CN109944342 A CN 109944342A CN 201711391233 A CN201711391233 A CN 201711391233A CN 109944342 A CN109944342 A CN 109944342A
- Authority
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- China
- Prior art keywords
- cavity
- partition
- metamaterial structure
- type interlayer
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000011229 interlayer Substances 0.000 title claims abstract description 40
- 238000005192 partition Methods 0.000 claims abstract description 47
- 239000010410 layer Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000011797 cavity material Substances 0.000 claims 18
- 239000004566 building material Substances 0.000 abstract description 7
- 239000007787 solid Substances 0.000 abstract description 5
- 210000003850 cellular structure Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 241000132536 Cirsium Species 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a kind of cavity type interlayer metamaterial structures, comprising: interlayer element, interlayer element have cavity, the superficial layer for being located at cavity both ends and back sheet and at least one partition in portion within the cavity；Wherein, partition is parallel with superficial layer and back sheet, and has at least one through-hole on partition.The present invention makes its acoustic feature closer to solid building materials, optimizes user experience by cavity inside setting there is the partition of through-hole to reduce noise intensity and noise frequency to be improved existing honeycomb.
Description
Technical field
The present invention relates to a kind of cavity type interlayer metamaterial structures.
Background technique
The building material part of the existing interlayer containing aluminum honeycomb is as shown in Figure 1 normal cellular structure 10 in the prior art, with
Sheet surface layer 12, aluminum honeycomb 16, based on 14 structure of backer board, although the mechanical characteristics with light-high-strength, its structure feature
It by excitation cavity resonance and is generated sharp, clear for typical operatic tunes resonant structure when being tapped by outside, trampling, hit
Crisp, the loud sound that echoes causes noise jamming to user, and it is made to generate query for the safety of building materials, influences user's body
It tests.
For above-mentioned technical problem in the prior art, not yet put forward effective solutions.
Summary of the invention
In view of the above problems in the related art, the present invention proposes a kind of cavity type interlayer metamaterial structure, can have
Better sound absorption performance and acoustic feature.
The technical scheme of the present invention is realized as follows:
According to an aspect of the invention, there is provided a kind of cavity type interlayer metamaterial structure, comprising: hollow cavity,
It is located at the superficial layer and back sheet and at least one partition in portion within the cavity at cavity both ends；Wherein, partition and table
Surface layer is parallel with back sheet, and has at least one through-hole on partition.
In one embodiment, cavity is prism shape.
In one embodiment, the quantity of partition is one, and partition and superficial layer have first distance, partition and back sheet
With second distance, first distance is equal with second distance.
In one embodiment, on each partition, the quantity of through-hole is one, and through-hole is located at the center of partition.
In one embodiment, on each partition, the quantity of through-hole be it is multiple, multiple through-holes are around the center of partition
It is evenly arranged.
In one embodiment, the shape of cavity is any among regular hexagonal prism, square prism shape and regular triangular prism
It is a kind of.
In some embodiments, the height of cavity is within the scope of 10mm to 50mm.
In some embodiments, the thickness of partition is within the scope of 0.1mm to 0.5mm, and the thickness of the peripheral wall of cavity is in 0.1mm
To 0.5mm.
In some embodiments, the radius of through-hole is in the range of 0.1mm to 1.5mm.
In some embodiments, the material of the peripheral wall of cavity is aluminium.
The present invention is by having the partition of through-hole in cavity inside setting, to be changed to existing honeycomb
Into reducing noise intensity and noise frequency, make its acoustic feature closer to solid building materials, optimize user experience.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic diagram of normal cellular structure in the prior art；
Fig. 2 is the schematic diagram of cavity type interlayer metamaterial structure according to an embodiment of the present invention；
Fig. 3 is the audio spectrum comparison diagram of cavity type interlayer metamaterial structure according to an embodiment of the present invention and the prior art；
Fig. 4 is the resonant frequency of cavity type interlayer metamaterial structure according to an embodiment of the present invention and the ratio of through-hole radius
Relational graph；
Fig. 5 is the resonant frequency of cavity type interlayer metamaterial structure according to an embodiment of the present invention and the ratio of partition position
Relational graph；
Fig. 6 is the schematic diagram of cavity type interlayer metamaterial structure in accordance with another embodiment of the present invention；
Fig. 7 is the schematic diagram of the cavity type interlayer metamaterial structure of another embodiment according to the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Fig. 2, cavity type interlayer metamaterial structure of the invention, comprising: interlayer element 20, interlayer element 20 have
Cavity 22, the superficial layer 24 for being located at 22 both ends of cavity and back sheet 26 and inside cavity 22 at least one every
Plate 28；Wherein, partition 28 is parallel with superficial layer 24 and back sheet 26, and has at least one through-hole 282 on partition 28.
Above-mentioned technical proposal, by cavity inside setting have through-hole partition, thus to existing honeycomb into
It has gone improvement, has reduced noise intensity and noise frequency, make its acoustic feature closer to solid building materials, optimize user's body
It tests.Cavity type interlayer metamaterial structure of the invention possesses legacy cellular structure light wt, high intensity, fire-proof and damp-proof, corrosion resistant
Feature is provided simultaneously with the acoustic feature better than legacy cellular structure.Using this structure as the interlayer of building material part, can make prefabricated
Part has an excellent mechanical property, low cost, easily construction, environmental-friendly mounting means and excellent sound absorption function and
Similar to the acoustic feature of solid wall.Cavity type interlayer metamaterial structure of the invention can be widely applied to multiple fields, such as
Door-plate, floor, non-load bearing wall of building materials field etc., road isolation board, sound insulationg board etc., vehicle, thistle board structure of train etc..
In some embodiments, the peripheral wall of cavity 22 is formed by aluminium.The peripheral wall of cavity 22 can also be according to actual
Applicable cases, the material for selecting other suitable are formed.
In some embodiments, cavity 22 is the cavity of prism shape.
In one embodiment, as shown in Fig. 2, cavity 22 is positive hexagonal prism shape honeycomb.Optionally, cavity 22
It can be quadrangular shape or be regular triangular prism shape.
Inventor compared the sound of the normal cellular structure of cavity type interlayer metamaterial structure and the prior art of the invention
Spectrum signature.Sound spectrum emulation for two kinds of structures, as shown in figure 3, the resonance frequency of cavity type interlayer metamaterial structure of the invention
Rate is greatly lowered, and the strength of resonance weakens.Showing that normal cellular interlayer sound is sharply clear and melodious when tapping sandwich plate, and this
The structure sound of invention is lower to sink simple and honest, and sound is smaller, closer to solid construction.
By emulation, inventor has studied influence of the structural parameters to sound spectrum resonant frequency.As shown in figure 4, the hole of through-hole
Radius is smaller, and resonant frequency is lower；As shown in figure 5, effect is identical when partition position is about central symmetry, and when partition is closer
Among honeycomb, resonant frequency is lower.To sum up, for aluminum honeycomb structure, there is micro-aperture (such as through-hole in centre addition center
Radius in the range of 0.1mm to 1.5mm) hard sheet, can most effectively reduce resonant frequency, it is special to improve acoustics
Sign.
Referring again to shown in Fig. 2, in one embodiment, the quantity of partition 28 is one.Wherein, partition 28 and superficial layer
24 have first distance z1, and partition 28 and back sheet 26 have second distance z, and first distance z1 is equal with second distance z.Also
It is to say, a partition 28 is located at the middle position of cavity 22.
In one embodiment, as shown in Fig. 2, on each partition 28, the quantity of through-hole 282 is one.Wherein, when logical
When the quantity in hole 282 is one, through-hole 282 is located at the center of partition 28.
In one embodiment, as shown in fig. 6, on each partition 28, the quantity of through-hole 282 is multiple.Wherein, when logical
When the quantity in hole 282 is multiple, multiple through-holes 282 are to be evenly arranged around the center of partition.
In one embodiment, as shown in fig. 7, the quantity of partition 28 be it is multiple, multiple partitions 28 can be in cavity 22
For be uniformly distributed or multiple partitions 28 can in cavity 22 non-uniform Distribution.
It should be appreciated that cavity type interlayer metamaterial structure of the invention, such as the number of the shape of prismatic cavity, partition
The position of the quantity of through-hole on amount, position, material and partition, through-hole can carry out configuration and group according to practical situations
It closes.
In some embodiments, the height h of cavity 22 is within the scope of 10mm to 50mm.Preferably, the height h of cavity 22 is
10mm.It is such to configure the cavity type interlayer metamaterial structure so that of the invention, guaranteeing to reduce noise intensity and noise frequency
While have lower height.
In some embodiments, within the scope of 0.1mm to 0.5mm, thickness t's thickness of partition 28 of the peripheral wall of cavity 22 exists
Within the scope of 0.1mm to 0.5mm.This makes cavity type interlayer metamaterial structure guarantee to reduce the same of noise intensity and noise frequency
When, there is lesser block board thickness and cavity wall thickness to be easily installed so that total quality will not be obviously increased.
In some embodiments, the radius of through-hole 282 is in the range of 0.1mm to 1.5mm.As described above, the half of through-hole
Diameter is smaller, more can be effectively reduced resonant frequency.It is preferred, therefore, that the radius of through-hole 282 is 1mm, so as to be effectively reduced
Resonant frequency, and convenient for manufacture.
In the embodiment shown in Figure 2, cavity 22 has the bottom surface of regular hexagon.Optionally, the side length of bottom surface is in 5mm-
Within the scope of 15mm.
It should be appreciated that the size of interlayer element 20 can be configured according to practical situations difference, the present invention is simultaneously
It is defined not to this.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of cavity type interlayer metamaterial structure characterized by comprising interlayer element, the interlayer element have cavity,
It is located at the superficial layer and back sheet and at least one partition positioned at the inside cavity at the cavity both ends；
Wherein, the partition is parallel with the superficial layer and the back sheet, and has at least one through-hole on the partition.
2. cavity type interlayer metamaterial structure according to claim 1, which is characterized in that the cavity is prism shape.
3. cavity type interlayer metamaterial structure according to claim 1, which is characterized in that the quantity of the partition is one
A, the partition and the superficial layer have a first distance, and the partition and the back sheet have a second distance, and described first
Distance is equal with the second distance.
4. cavity type interlayer metamaterial structure according to claim 1, which is characterized in that described logical on each partition
The quantity in hole is one, and the through-hole is located at the center of the partition.
5. cavity type interlayer metamaterial structure according to claim 1, which is characterized in that described logical on each partition
The quantity in hole be it is multiple, multiple through-holes be evenly arranged around the center of partition.
6. cavity type interlayer metamaterial structure according to claim 2, which is characterized in that the shape of the cavity is positive six
Any one among prism, square prism shape and regular triangular prism.
7. cavity type interlayer metamaterial structure according to claim 1, which is characterized in that the height of the cavity is in 10mm
To 50mm.
8. cavity type interlayer metamaterial structure according to claim 1, which is characterized in that the thickness of the partition exists
Within the scope of 0.1mm to 0.5mm, the thickness of the peripheral wall of the cavity is within the scope of 0.1mm to 0.5mm.
9. cavity type interlayer metamaterial structure according to claim 1, which is characterized in that the radius of the through-hole exists
In the range of 0.1mm to 1.5mm.
10. cavity type interlayer metamaterial structure according to claim 1, which is characterized in that the material of the peripheral wall of the cavity
Material is aluminium.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391233.9A CN109944342A (en) | 2017-12-21 | 2017-12-21 | A kind of cavity type interlayer metamaterial structure |
| PCT/CN2018/079865 WO2019119662A1 (en) | 2017-12-21 | 2018-03-21 | Sandwich-form metamaterial structure having cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391233.9A CN109944342A (en) | 2017-12-21 | 2017-12-21 | A kind of cavity type interlayer metamaterial structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109944342A true CN109944342A (en) | 2019-06-28 |
Family
ID=66992988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711391233.9A Pending CN109944342A (en) | 2017-12-21 | 2017-12-21 | A kind of cavity type interlayer metamaterial structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109944342A (en) |
| WO (1) | WO2019119662A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07150749A (en) * | 1993-12-01 | 1995-06-13 | Ibiden Co Ltd | Soundproof floor material |
| JPH10333686A (en) * | 1997-05-28 | 1998-12-18 | Sharp Corp | Muffler |
| CN102953448A (en) * | 2012-11-10 | 2013-03-06 | 苏州金螳螂建筑装饰股份有限公司 | Cavity sound absorbing plate |
| US9127452B1 (en) * | 2014-04-11 | 2015-09-08 | Rohr, Inc. | Porous septum cap |
| CN205475789U (en) * | 2016-03-30 | 2016-08-17 | 贵州大学 | Micropore sound absorption sound insulation composite board structure |
| CN207905148U (en) * | 2017-12-21 | 2018-09-25 | 深圳光启尖端技术有限责任公司 | A kind of cavity type interlayer metamaterial structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233956Y (en) * | 1995-09-25 | 1996-08-28 | 王法源 | High-effect sound-absorbing body |
| CN106863921B (en) * | 2016-12-19 | 2019-05-24 | 北京卫星制造厂 | A kind of sound absorbing-insulating structure |
-
2017
- 2017-12-21 CN CN201711391233.9A patent/CN109944342A/en active Pending
-
2018
- 2018-03-21 WO PCT/CN2018/079865 patent/WO2019119662A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07150749A (en) * | 1993-12-01 | 1995-06-13 | Ibiden Co Ltd | Soundproof floor material |
| JPH10333686A (en) * | 1997-05-28 | 1998-12-18 | Sharp Corp | Muffler |
| CN102953448A (en) * | 2012-11-10 | 2013-03-06 | 苏州金螳螂建筑装饰股份有限公司 | Cavity sound absorbing plate |
| US9127452B1 (en) * | 2014-04-11 | 2015-09-08 | Rohr, Inc. | Porous septum cap |
| CN205475789U (en) * | 2016-03-30 | 2016-08-17 | 贵州大学 | Micropore sound absorption sound insulation composite board structure |
| CN207905148U (en) * | 2017-12-21 | 2018-09-25 | 深圳光启尖端技术有限责任公司 | A kind of cavity type interlayer metamaterial structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019119662A1 (en) | 2019-06-27 |
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