CN206639584U - A kind of sound absorption cell cube of MULTILAYER COMPOSITE containing cavity suitable for underwater environment - Google Patents
A kind of sound absorption cell cube of MULTILAYER COMPOSITE containing cavity suitable for underwater environment Download PDFInfo
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- CN206639584U CN206639584U CN201720244200.0U CN201720244200U CN206639584U CN 206639584 U CN206639584 U CN 206639584U CN 201720244200 U CN201720244200 U CN 201720244200U CN 206639584 U CN206639584 U CN 206639584U
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Abstract
A kind of sound absorption cell cube of MULTILAYER COMPOSITE containing cavity suitable for underwater environment, mainly alignd including top layer, absorbent treatment and basalis, four sides on top layer, absorbent treatment and substrate layer vertical, top layer is the sound transmitting rubber without cavity, and upper surface is four sides taper；Absorbent treatment includes the elliposoidal cavity of planar-periodic arrangement, and the material of absorbent treatment is sound absorbing capabilities excellent rubber or other Advances in Sound Absorption Polymers；Basalis is the higher sound absorbent rubber of acoustic impedance.The utility model has the advantages that simple in construction, broad band sound absorption effect is good, easy for installation, quality is small, can be applied in fields such as ship stealth, anechoic tank, stem sonar cabin noise reductions.
Description
Technical field
A kind of acoustic construction is the utility model is related to, especially a kind of underwater sound absorption nappe.
Background technology
Underwater sound absorption body is based on the wedge absorber of quality of rubber materials at present, but because wedge appearance and size is larger, especially
Its height is generally higher, and so as to require higher to the bulk at workmen's technological level and construction, this is to a certain degree
On improve the difficulty of construction, and add the cost of construction.Although the theoretical sound absorbing capabilities of wedge absorber are good, in reality
During operation, limited because wedge bottom surface is generally circular, therefore by execution conditions and workmen's technological level, construction surface
It can not be usually completely covered by wedge absorber, these all have a greatly reduced quality the overall acoustically effective for causing wedge.And due to inhaling
The actual weight of sound wedge is larger, and when being applied to the vertical construction surfaces such as wall, baffle, wedge is easily because gravitational moment is made after construction
With and the problem of produce degumming, come off, the appearance of these problems considerably increases the maintenance cost in later stage.
The content of the invention
It is generally higher to solve above-mentioned wedge absorber size especially height, at workmen's technological level and construction
Bulk requires higher, and wedge bottom surface is generally circular, and construction surface can not be usually completely covered by wedge absorber, and inhales
The actual weight of sound wedge is larger, the problems such as degumming comes off easily occurs, the purpose of this utility model is to provide a kind of broad band sound absorption
Performance is good, size low height is small, it is easy for construction, be easy to cover comprehensively construction surface, it is in light weight it is difficult for drop-off, suitable for underwater environment
MULTILAYER COMPOSITE containing cavity sound absorption cell cube.
MULTILAYER COMPOSITE containing cavity sound absorption cell cube provided by the utility model suitable for underwater environment, including top layer 1, suction
Sound layer 2 and basalis 3, it is characterised in that：Top layer for pyramid；Absorbent treatment is in right prism shape, include closing, parallel to
In ellipsoid cone cavity 6n of planar-periodic arrangement in the plane of absorbent treatment bottom surface, the side of the major axis of cavity parallel to absorbent treatment
Stupefied, the centre of sphere of n cavity is located in approximately the same plane, and the plane is parallel with the bottom surface of absorbent treatment；Basalis is polygon sheet
Structure；It is connected successively with being glued between top layer, absorbent treatment, basalis, wherein top layer bottom surface is connected with a bottom surface of absorbent treatment,
Another bottom surface of absorbent treatment is connected with basalis；The projection phase of top layer, absorbent treatment and basalis in the plane where basalis
Mutually overlap；Wherein n is the positive integer not less than 1.
The cavity planar presses periodic arrangement, spread pattern can be the forms such as honeycombed, rectangle and triangle (see
Fig. 4), according to frequency range where target noise, optimal cavity major and minor axis ratio and its planar-periodic spread pattern are selected.
Preferably, on parallel to the stupefied direction in absorbent treatment side, the thickness on top layer is 4~5mm, and the thickness of absorbent treatment is 40
~120mm, the thickness of basalis is 4~5mm, and the damping loss factor of absorbent treatment is 0.25~0.55；The same bottom surface of absorbent treatment
On the length of most long two summit lines be more than the thickness sum on top layer, absorbent treatment and basalis.
It is furthermore preferred that the thickness of the absorbent treatment is 40-100mm.
Preferably, the surface material is sound transmitting rubber, and top layer is free of cavity；Absorbent treatment material is macromolecule sound absorption material
Material；Basalis material is the sound absorbent rubber that acoustic impedance is higher than absorbent treatment material, and basalis is free of cavity.
It is furthermore preferred that the absorbent treatment material is sound absorbent rubber.
Preferably, the major and minor axis ratio of the cavity is 1.2~3.5.
The utility model also provides a kind of sound absorption structure formed using above-mentioned MULTILAYER COMPOSITE containing cavity sound absorption cell cube, bag
Include construction plane 5, damping glue 4 and sound absorption cell cube；Ensure construction coplanar flat during construction, and 5 are uniformly smeared in construction surface~
Viscous damping glue thick 10mm, and sound absorption cell cube is pasted onto in construction plane successively by viscous damping glue, by inhaling
The reasonable selection of sound layer bottom shape, make the basalis of sound absorption cell cube that construction plane be completely covered, and compress until damping glue
Dry.In corner and junction, suitably should be reinforced using mechanical connection.
Compared with the prior art, it is provided by the utility model sound absorption cell cube have simple in construction, broad band sound absorption effect is good,
The advantages that quality is small, difficult for drop-off, cell cube integral thickness (height) is small, it is convenient various sizes, shape space in carry out
Installation；Absorbent treatment is prism-shaped, and cell cube bottom surface is polygon, can be by cell cube (absorbent treatment) bottom during construction and installation
The reasonable selection in face, the control basalis adaptable with it is as more as possible to be even completely covered construction plane.The utility model carries
The sound absorption cell cube of confession can be applied in fields such as ship stealth, anechoic tank, stem sonar cabin noise reductions.
Brief description of the drawings
Fig. 1 is sound absorption cell cube schematic appearance provided by the utility model；
Fig. 2 is sound absorption Unit agent structure schematic diagram provided by the utility model；
Fig. 3 is sound absorption cell cube cross-sectional view provided by the utility model；
Fig. 4 is sound absorption cell cube absorbent treatment internal cavity planar-periodic exemplary distribution form signal provided by the utility model
Figure, Fig. 4 (a) is honeycomb arrangement, and Fig. 4 (b) is rectangular arranged, and Fig. 4 (c) is rounded projections arranged.
Reference in figure, wherein 1 is top layer, 2 be absorbent treatment, and 3 be basalis, and 4 be damping glue, and 5 be construction surface, 6
For cavity.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.It should be understood that
, embodiment be only the present invention is explained and and it is non-limiting.
Embodiment 1
Structural elements obtains the cell cube that absorbs sound as shown in Figure 1, including top layer 1, absorbent treatment 2 and basalis 3, top layer are summit
Upward positive pyramid shape；Absorbent treatment is in four-prism shape, include closing, on the plane parallel to absorbent treatment bottom surface in flat
The ellipsoid cone cavity of face periodic arrangement 6,16, the major axis of cavity is stupefied parallel to the side of absorbent treatment, the centre bit of 16 cavitys
In in approximately the same plane, bottom surface of the plane parallel to absorbent treatment；Basalis is square sheets shape；Top layer, absorbent treatment, substrate
It is connected successively with being glued between layer, wherein top layer is connected with bottom surface with absorbent treatment upper bottom surface, absorbent treatment bottom surface and basalis phase
Even；The projection of top layer, absorbent treatment and basalis in the plane where absorbent treatment bottom surface overlaps.
The cavity planar presses periodic arrangement, and spread pattern can be shown in Fig. 4 (b).
On parallel to the stupefied direction in absorbent treatment side, the thickness on top layer is 4mm, and the thickness of absorbent treatment is 40mm, basalis
Thickness be 4mm, the damping loss factor of absorbent treatment is 0.25；Absorbent treatment bottom surface catercorner length is 70mm.
The surface material is sound transmitting rubber, such as material is polyurethane or butene rubber etc., and top layer is free of cavity；Sound absorption
Layer material is the Advances in Sound Absorption Polymers such as sound absorbent rubber, polyurethane；The sound absorption bigger than sound absorbing material layer of basalis material acoustic impedance
Rubber, basalis are free of cavity.
In the present embodiment, top layer uses butene rubber, and absorbent treatment uses acoustic polyurethane, and basalis uses fourth eyeball rubber
Glue.
The major and minor axis ratio of the cavity is 1.2.
Embodiment 2
Difference with embodiment 1 is：Top layer is bored for positive triangle, and absorbent treatment bottom surface is equilateral triangle；Basalis is positive three
Angular sheet shape；In the ellipsoid cone cavity 6,36 of planar-periodic arrangement on the plane parallel to absorbent treatment bottom surface；It is described
Cavity planar presses periodic arrangement, and spread pattern is similar to Fig. 4 (c)；On parallel to the stupefied direction in absorbent treatment side, the thickness on top layer
Spend for 5mm, the thickness of absorbent treatment is 120mm, and the thickness of basalis is 5mm, and the damping loss factor of absorbent treatment is 0.55；Sound absorption
A height of 150mm of layer base triangle；Absorbent treatment material is sound absorbent rubber；Basalis material is that damping loss factor is 0.58
Sound absorbent rubber, basalis are free of cavity；The major and minor axis ratio of the cavity is 3.5.
Embodiment 3
Difference with embodiment 2 is：Absorbent treatment thickness is 100mm.
Embodiment 4-6
By taking the use in stem sonar transducer space as an example, the sound absorption of MULTILAYER COMPOSITE containing cavity cell cube structure described in embodiment 1-3 is utilized
Build sound absorption structure, including construction plane 5, damping glue 4 and sound absorption cell cube；Ensure construction coplanar flat during construction, and constructing
The thick viscous damping glue of 5mm is uniformly smeared in face, and sound absorption cell cube is pasted onto in construction plane successively by viscous damping glue,
By the splicing to absorbent treatment bottom surface, make the basalis of sound absorption cell cube that construction plane be completely covered, and compress until damping glue
Dry.Laid by taking the use in stem sonar transducer space as an example, and by above-mentioned requirements, should be suitably using machinery in corner and junction
Connection is reinforced.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (7)
- The cell cube 1. a kind of MULTILAYER COMPOSITE containing cavity suitable for underwater environment absorbs sound, including top layer (1), absorbent treatment (2) and base Bottom (3), it is characterised in that：Top layer for pyramid；Absorbent treatment is in right prism shape, include closing, parallel to absorbent treatment In ellipsoid cone cavity (6) n of planar-periodic arrangement in the plane of bottom surface, the major axis of cavity is stupefied parallel to the side of absorbent treatment, n The centre of sphere of individual cavity is located in approximately the same plane, and the plane is parallel with the bottom surface of absorbent treatment；Basalis is polygon laminated structure； It is connected successively with being glued between top layer, absorbent treatment, basalis, wherein top layer bottom surface is connected with a bottom surface of absorbent treatment, sound absorption Another bottom surface of layer is connected with basalis；The projection phase mutual respect of top layer, absorbent treatment and basalis in the plane where basalis Close；Wherein n is the positive integer not less than 1.
- 2. the sound absorption cell cube of MULTILAYER COMPOSITE containing cavity as described in claim 1, it is characterised in that：Stupefied parallel to absorbent treatment side Direction on, the thickness on top layer is 4~5mm, and the thickness of absorbent treatment is 40~120mm, and the thickness of basalis is 4~5mm, sound absorption The damping loss factor of layer is 0.25~0.55；On the same bottom surface of absorbent treatment the length of two most long summit lines be more than top layer, The thickness sum of absorbent treatment and basalis.
- The cell cube 3. MULTILAYER COMPOSITE containing cavity according to claim 2 absorbs sound, it is characterised in that：The thickness of the absorbent treatment For 40-100mm.
- 4. the sound absorption cell cube of MULTILAYER COMPOSITE containing cavity according to claim 1 or 3, it is characterised in that：The surface material For sound transmitting rubber, top layer is free of cavity；Absorbent treatment material is Advances in Sound Absorption Polymers；Basalis material is acoustic impedance higher than sound absorption The sound absorbent rubber of layer material, basalis are free of cavity.
- The cell cube 5. MULTILAYER COMPOSITE containing cavity according to claim 4 absorbs sound, it is characterised in that：The absorbent treatment material is Sound absorbent rubber.
- 6. the sound absorption cell cube of MULTILAYER COMPOSITE containing cavity according to claim 1 or 3, it is characterised in that：The length of the cavity Short axle ratio is 1.2~3.5.
- 7. the sound absorption structure that a kind of sound absorption cell cube of MULTILAYER COMPOSITE containing cavity using described in claim 1 or 3 is formed, its feature It is：Including construction plane (5), damping glue (4) and sound absorption cell cube；Ensure construction coplanar flat during construction, and in construction surface It is uniform to smear the thick viscous damping glue of 5~10mm, and sound absorption cell cube is pasted it by viscous damping glue successively and put down in construction On face, and compress until damping glue is dried.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492814A (en) * | 2018-03-28 | 2018-09-04 | 贵州大学 | A kind of combination cavity type acoustic stimulation based on impedance transition mechanism type |
| CN108520739A (en) * | 2018-03-28 | 2018-09-11 | 贵州大学 | A kind of impedance transition mechanism type acoustic stimulation based on locally resonant principle |
| CN109102790A (en) * | 2018-08-16 | 2018-12-28 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Pressure resistance sound insulation baffle under a kind of module-type water |
| CN110288969A (en) * | 2019-06-20 | 2019-09-27 | 西安交通大学 | A kind of right cylinder type dot matrix enhancing cavity type underwater sound absorption structure |
| CN110288971A (en) * | 2019-06-20 | 2019-09-27 | 南京航空航天大学 | A kind of right cylinder type dot matrix enhancing locally resonant type underwater sound absorption structure |
| CN110310617A (en) * | 2019-06-20 | 2019-10-08 | 西安交通大学 | A kind of enhancing of right cylinder type dot matrix is mingled with type underwater sound absorption structure |
| CN110706685A (en) * | 2019-09-24 | 2020-01-17 | 哈尔滨工程大学 | Vibration and noise reduction structure for working environment of underwater detection equipment |
| CN111739501A (en) * | 2020-06-01 | 2020-10-02 | 南京航空航天大学 | Underwater sound absorption structure of damping lining level honeycomb perforated plate |
| CN111739502A (en) * | 2020-06-01 | 2020-10-02 | 南京航空航天大学 | Underwater sound absorption metamaterial with damping lining hexagonal honeycomb perforated plate |
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2017
- 2017-03-14 CN CN201720244200.0U patent/CN206639584U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492814A (en) * | 2018-03-28 | 2018-09-04 | 贵州大学 | A kind of combination cavity type acoustic stimulation based on impedance transition mechanism type |
| CN108520739A (en) * | 2018-03-28 | 2018-09-11 | 贵州大学 | A kind of impedance transition mechanism type acoustic stimulation based on locally resonant principle |
| CN109102790A (en) * | 2018-08-16 | 2018-12-28 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Pressure resistance sound insulation baffle under a kind of module-type water |
| CN110288969A (en) * | 2019-06-20 | 2019-09-27 | 西安交通大学 | A kind of right cylinder type dot matrix enhancing cavity type underwater sound absorption structure |
| CN110288971A (en) * | 2019-06-20 | 2019-09-27 | 南京航空航天大学 | A kind of right cylinder type dot matrix enhancing locally resonant type underwater sound absorption structure |
| CN110310617A (en) * | 2019-06-20 | 2019-10-08 | 西安交通大学 | A kind of enhancing of right cylinder type dot matrix is mingled with type underwater sound absorption structure |
| CN110288969B (en) * | 2019-06-20 | 2022-04-22 | 西安交通大学 | Straight column type lattice reinforced cavity type underwater sound absorption structure |
| CN110706685A (en) * | 2019-09-24 | 2020-01-17 | 哈尔滨工程大学 | Vibration and noise reduction structure for working environment of underwater detection equipment |
| CN110706685B (en) * | 2019-09-24 | 2022-03-04 | 哈尔滨工程大学 | Vibration and noise reduction structure for working environment of underwater detection equipment |
| CN111739501A (en) * | 2020-06-01 | 2020-10-02 | 南京航空航天大学 | Underwater sound absorption structure of damping lining level honeycomb perforated plate |
| CN111739502A (en) * | 2020-06-01 | 2020-10-02 | 南京航空航天大学 | Underwater sound absorption metamaterial with damping lining hexagonal honeycomb perforated plate |
| CN111739501B (en) * | 2020-06-01 | 2023-07-11 | 南京航空航天大学 | Damping lining level honeycomb perforated plate underwater sound absorption structure |
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