CN107369436A - A kind of compound sound-absorption structural containing hollow soft resonating body - Google Patents
A kind of compound sound-absorption structural containing hollow soft resonating body Download PDFInfo
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- CN107369436A CN107369436A CN201610308932.1A CN201610308932A CN107369436A CN 107369436 A CN107369436 A CN 107369436A CN 201610308932 A CN201610308932 A CN 201610308932A CN 107369436 A CN107369436 A CN 107369436A
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- Prior art keywords
- hollow soft
- resonating
- sound
- resonating body
- soft
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 44
- 150000001875 compounds Chemical class 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims description 9
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000011148 porous material Substances 0.000 abstract description 11
- 239000010409 thin film Substances 0.000 abstract description 3
- 239000011358 absorbing material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 239000013536 elastomeric material Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 206010011878 Deafness Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001260 vocal cord Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Abstract
The present invention relates to noise processed field, there is provided a kind of compound sound-absorption structural containing hollow soft resonating body.The compound sound-absorption structural for containing hollow soft resonating body includes containing body, hollow soft resonating body and protection body；Multiple hollow soft resonating body are filled with containing body, and space is formed between hollow soft resonating body；Containing body includes open face, and open face position is provided with protection body, and is distributed with protection body towards the through hole inside containing body.In the program, noise is entered inside containing body by through hole, hollow soft resonating body inside containing body not only has the characteristics of thin-film material sound absorption, and there is space between hollow soft resonating body, so that the hollow soft resonating member being packed together forms similar sound-absorbing porous material.Thus, the compound sound-absorption structural containing hollow soft resonating body of the program has resonance sound-absorbing performance and the performance of porous sound absorption simultaneously, to obtain preferable acoustically effective in the range of broad frequency band.
Description
Technical field
The present invention relates to noise processed field, more particularly to it is a kind of containing hollow soft resonating body
Compound sound-absorption structural.
Background technology
With the development of modern industry and transportation business, environmental pollution is made an uproar also with generation
Sound pollution is one of three major issues of world today's pollution.Noise not only endangers the sense of hearing system of people
System, makes one aging that is tired, deaf, but also can accelerating building and mechanical structure, influences
The precision and service life of equipment and instrument.Therefore sqouynd absorption lowering noise is gradually evolved into relevant for one
High-tech, environment and the mankind, which develop in harmony, is badly in need of the important topic of solution, and sqouynd absorption lowering noise is new
Structure, acoustic characteristic and its application of material are an important topics for being related to multi-crossed disciplines.
Sound-absorbing material is divided into resonance sound-absorbing material and the major class of sound-absorbing porous material two by sound absorbing mechanism.
Resonance sound-absorbing material mainly absorbs low-frequency sound, and that is commonly used in engineering has film resonate, be thin
Plate resonates and perforated plate resonant structure.Film resonant structure is to utilize thin-film material and its rear enclosed
Air layer formed resonator system.Resonance sound-absorbing structure for sheet is that thin plate produces in the presence of sound wave
Raw vibration, because frictional dissipation occurs between keel in intralamellar part during vibration, acoustic energy is set to become machinery
Vibration, is finally changed into heat energy and plays sound absorption.Perforated plate RESONANCE ABSORPTION structure, it is worn
There is closed cavity behind each hole on orifice plate, equivalent to many " Helmholtz " resonance in parallel
Device, when the frequency of incidence wave and the consistent resonant frequency of system, that is, produce resonance.Now,
Reciprocal air vibration at plate holes of perforating, its amplitude reach maximum, and rub and damp
Maximum, for acoustic energy because viscous loss is changed into heat energy, i.e., acoustic energy, which dissipates, reaches maximum.This is perforation
The advantages of plate RESONANCE ABSORPTION structure.But this structure also has the shortcomings that its is intrinsic, its major defect
It is：The selectivity of frequency is strong, that is to say that its sound sucting band is narrow, only near resonant frequency
There can be preferable sound absorbing capabilities, and off-resonance frequence, its acoustically effective are substantially deteriorated.Horse
Big formal plan once pointed out solve perforation plate problem and be not only technical innovation and creation, and sound absorption material
The significant development of material and sound absorption structure.Therefore, extra resonance absorbing peak reason how is introduced to work as
So to overcome resonant structure own limitations to provide a thinking.
Sound-absorbing porous material is due to cause air vibration after sound wave enters porous material, due to shaking
Dynamic to be stopped by tortuous pore wall, air and pore wall occur friction and viscous make suitable one
The acoustic energy divided is converted into thermal dissipation.It is hot caused by the heat exchange between air and hole wall in hole
Loss, also makes sound energy attenuation, causes energy loss.
The content of the invention
(1) technical problems to be solved
The purpose of the present invention is：A kind of composite sound absorbing knot containing hollow soft resonating body is provided
Structure, the advantages of comprehensive existing resonance sound-absorbing material and sound-absorbing porous material, and solves existing skill
The problem of selectivity of resonance sound-absorbing material frequencies is strong in art.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides one kind to contain hollow soft resonating body
Compound sound-absorption structural, including containing body, hollow soft resonating body and protection body；The receiving
Multiple hollow soft resonating body, and shape between the hollow soft resonating body are filled with body
Into space；The containing body includes open face, and the open face position, which is provided with, prevents the sky
The protection body of soft-hearted matter resonating body leakage, and be distributed with the protection body towards the appearance
Receive the through hole in internal portion.
Preferably, the material of the hollow soft resonating body is latex or silica gel.
Preferably, the hollow soft resonating body is in hollow ball-shape, or in hollow ellipsoid shape.
Preferably, it is described hollow soft filled with various shapes and sizes in the containing body
Matter resonating body.
Preferably, the containing body is rectangular box.
Preferably, the containing body includes bottom plate and the gusset plate being fixed on the bottom plate,
And the bottom plate and gusset plate are solid slab and are in rigid.
Preferably, the containing body includes bottom plate and the gusset plate being fixed on the bottom plate,
The gusset plate is solid slab and is in rigidity, and the bottom plate is elastic plate.
Preferably, the containing body is the rectangle installing frame surrounded by gusset plate.
Preferably, the protection body is protecting wire net.
Preferably, the protection body is perforated plate.
(3) beneficial effect
The technique effect of the present invention has advantages below：The present invention's contains hollow soft resonating body
Compound sound-absorption structural, including containing body, hollow soft resonating body and protection body；The receiving
Multiple hollow soft resonating body, and shape between the hollow soft resonating body are filled with body
Into space；The containing body includes open face, and the open face position, which is provided with, prevents the sky
The protection body of soft-hearted matter resonating body leakage, and be distributed with the protection body towards the appearance
Receive the through hole in internal portion.In the program, noise is entered inside containing body by through hole, is accommodated
The hollow soft resonating body in internal portion not only has the characteristics of thin-film material sound absorption, and hollow soft
There is space, so that the hollow soft resonating member shape being packed together between matter resonating body
Into similar sound-absorbing porous material.Thus, the program is compound containing hollow soft resonating body
Sound absorption structure has resonance sound-absorbing performance and the performance of porous sound absorption simultaneously, with broad frequency band model
Enclose the interior preferable acoustically effective of acquisition.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, under
Face will be briefly described to the required accompanying drawing used in embodiment or description of the prior art,
It should be evident that drawings in the following description are only some embodiments of the present invention, for
, on the premise of not paying creative work, can be with for those of ordinary skill in the art
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the stereochemical structure of the compound sound-absorption structural containing hollow soft resonating body in embodiment
Schematic diagram；
Fig. 2 is the section view signal of the compound sound-absorption structural containing hollow soft resonating body in embodiment
Figure；
In figure：1st, containing body；11st, gusset plate；12nd, bottom plate；2nd, hollow soft resonating body；
3rd, protection body.
Embodiment
With reference to the accompanying drawings and examples embodiments of the present invention are made further to retouch in detail
State.Following examples are used to illustrate the present invention, but can not be used for limiting the scope of the present invention.
In the description of the invention, it is necessary to explanation, term " " center ", " longitudinal direction ", " horizontal stroke
To ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ",
The orientation or position relationship of the instruction such as " bottom ", " interior ", " outer " are based on orientation shown in the drawings
Or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and behaviour
Make, therefore be not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited,
Term " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, also may be used
To be to be detachably connected, or it is integrally connected；Can be mechanical connection or electrical connection；
Can be joined directly together, can also be indirectly connected by intermediary.For the common of this area
For technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Refer to Fig. 1-2, the compound sound-absorption structural containing hollow soft resonating body of the present embodiment,
Including containing body 1, hollow soft resonating body 2 and protection body 3.Filled with more in the containing body 1
The individual hollow soft resonating body 2, and form space between the hollow soft resonating body 2.Institute
Stating containing body 1 also includes open face, the open face position be provided with prevent it is described hollow soft
The protection body of resonating body leakage, and be distributed with the protection body 3 towards the containing body 1
Internal through hole.
When the compound sound-absorption structural containing hollow soft resonating body of the present embodiment is used for into noise reduction,
Noise is entered inside containing body 1 by through hole, the hollow soft resonating body 2 inside containing body 1
With the soft characteristic of the thin matter of wall, so as to which its soft thin-walled has the characteristic of film resonance.Herein
On the basis of, space is formed between the hollow soft resonating body 2 of accumulation, so as to what is be packed together
Many hollow soft resonating body 2 form similar sound-absorbing porous material.Thus, the present embodiment contains
The compound sound-absorption structural for soft-hearted matter resonating body of having time has resonance sound-absorbing performance and porous suction simultaneously
The performance of sound, to obtain preferable acoustically effective in the range of broad frequency band.
The more typical material that can be used for doing hollow soft resonating body 2 of one of which is exactly latex
The balloon made.Obviously, after filling the air, it is in hollow shape to balloon, and quality is soft
It is soft.And in order that obtaining the characteristic that ball has film to resonate, then only need on this basis,
Thickness of the balloon under designated volume is designed, and causes it to meet phase in varied situations
The noise reduction sound absorption answered requires.Certainly, in addition to latex, the material of hollow soft resonating body 2 is also
The composite that silica gel, latex and silica gel can be used to be formed, and other meet that what is required answers
Condensation material etc..
By foregoing description, the film resonance sound-absorbing characteristic of hollow soft resonating body 2 is main
Depending on its material and thickness.On this basis, a large amount of hollow soft resonating body 2 are deposited in
When together, the arrangement relation of all hollow soft resonating body 2 will determine its porous sound absorption characteristic.
In the present embodiment, for the ease of the arrangement of hollow soft resonating body 2, and ensure its acquisition
Preferable porous sound absorption characteristic, preferably hollow soft resonating body 2 is in hollow ball-shape, or in sky
Heart ellipsoid.In the case of this kind, hollow ball-shape and hollow ellipsoid shape can preferably ensure to accumulate
Space is formed between hollow soft resonating body 2 together.On this basis, if to ensure
Space is uniform, then the hollow soft shape formed objects of resonating body 2 filled in preferred containing body 1
It is equal.
Certainly, if it is desired to ensureing that the space that hollow soft resonating body 2 is formed is various, so as to work as sound
Sound enter it is fashionable friction and viscous occurs with pore wall, and so that more acoustic energy are converted into thermal energy consumption
Dissipate, then the hollow soft shape and size of resonating body 2 can variation.
From the foregoing, it will be observed that do not have special want for the shape and size of hollow soft resonating body 2
To ask, hollow soft resonating body 2 can be square, be trapezoidal, rhombus even any shape, as long as
It is made in production technology, and can be between the hollow soft resonating body 2 of accumulation
Form space.As long as in the present embodiment on the whole for, what is be close together is hollow soft
There is space between resonating body 2, and cause all hollow soft resonating body 2 being packed together
Form similar sound-absorbing porous material, do not require all adjacent hollow soft resonating body 2 it
Between space be present.
On the basis of the above, the effect of containing body 1 is to fix and install hollow soft resonance
Body 2, it is set to can be used for noise-reducing device, such as soundproof wall, sound panel etc..In view of this,
On basic demand that hollow soft resonating body 2 is fixed and installed is met, to the structure of containing body 1
It is not particularly limited with material.Also, by the above-mentioned composite sound absorbing containing hollow soft resonating body
When structure is used for the acoustic isolation facilities such as soundproof wall, sound panel, containing body 1 can also be soundproof wall branch
Frame, or sound insulation framework etc., thus only need to apply hollow soft resonance at the construction field (site)
Body 2 is filled to wall mounting or sound insulation framework.
The containing body 1 of the present embodiment, for material angle, containing body 1 can be metal material
Can also be nonmetallic materials.In addition, for from structure, containing body 1 can both use rule
Structure then, irregular structure can also be used, for example, the accommodating chamber that containing body 1 is formed is simultaneously
Depth need not be waited everywhere, it is not required that wide everywhere.
The present embodiment only enumerates a kind of containing body 1 of rectangular box body shape, it should be appreciated that
The containing body 1 of rectangular box shape does not form the limitation to the structure of containing body 1.
Please with further reference to Fig. 1 and Fig. 2, rectangular box includes bottom plate 12 and is fixed on the bottom
Gusset plate 11 on plate 12, and the bottom plate 12 and gusset plate 11 are solid slab and are in rigid.
Wherein, it is solid and can more preferably realize filling out for hollow soft resonating body 2 in rigid gusset plate 11
Fill, certainly in the case where meeting the requirement of the soft filling of fixation hollow, gusset plate 11 can also use hollow
, or surface is provided with perforate.In addition, using solid, rigid bottom plate 12, itself also has
There is the effect of certain noise barrier.In addition to using the bottom plate 12 of solid, rigid, bottom plate 12
Cored slab can also be used, and perforate can also be set on hollow bottom plate 12.Certainly, this
Place's bottom plate 12 can also use elastic construction, e.g. protecting wire net, or elastomeric material is solid
Cored slab of plate or elastomeric material etc., also, the bottom plate of elastomeric material also have it is certain every
Audio fruit.Even, it can preferably realize what hollow soft resonating body 2 was accumulated in gusset plate 11
During effect, it is convenient to omit bottom plate 12, so as to which containing body 1 is that the rectangle surrounded by gusset plate 11 is pacified
Frame up.
On the basis of the above, in order to guide sound to enter in the accommodating chamber of containing body 1, and it is and empty
Soft-hearted matter resonating body 2 contacts, then containing body 1 also includes open face.In the construction of noise-reducing device
Or among preparation process, the direction of general open face will consider the propagation relation of itself and sound,
For example, when the compound sound-absorption structural containing hollow soft resonating body is used for into soundproof wall, then spacious
Mouth face is normally on the inner surface of wall, is accommodated so as to which the sound guidance of interior is entered
The inside of body 1 simultaneously absorbs and consumed.
And in order to prevent hollow soft resonating body 2 from being dropped from open face position, the present embodiment contains
The compound sound-absorption structural for soft-hearted matter resonating body of having time, open face position is provided with protection body 3.Its
In, hollow soft resonating body 2 can be fixed on by protection body 3 in containing body 1, so as to right
Hollow soft resonating body 2 plays a protective role.Made an uproar in addition, the setting of protection body 3 should not stop
Sound is entered in containing body 1, therefore is distributed with protection body 3 towards inside the containing body 1
Through hole.
In the present embodiment, protection body 3 can use the structure type of protecting wire net, so as to the net of protecting wire net
Hole is equivalent to " through hole led to inside the containing body 1 " mentioned above.Wherein, to shield
The material of net do not have it is special to go, can be metal material or be nonmetallic materials, only
Hollow soft resonating body 2 can be played a protective role.In addition, in order to ensure to sky
The sealing effect of soft-hearted matter resonating body 2, then the most basic requirement of the mesh of obvious protecting wire net is exactly
Prevent hollow soft resonating body 2 from rushing down dew from mesh.On this basis, mesh can be circular
Hole, square opening, diamond hole, hex hole, fish scale shape hole, slotted eye or other any
Shape.In addition, the size of mesh is also changeable.
Except the structure type using protecting wire net, the protection body 3 of the present embodiment can also use perforation
The form of plate, the perforation wherein on perforated plate are equivalent to mentioned above " lead to the receiving
Through hole inside body 1 ".Perforated plate itself has the characteristics of resonance sound-absorbing, so as to further
Strengthen the acoustically effective for the compound sound-absorption structural that the present embodiment contains hollow soft resonating body.When
So, the cost of perforated plate can be higher than protecting wire net.
The compound sound-absorption structural containing hollow soft resonating body of the present embodiment, by hollow soft
The use of resonating body 2 so that the compound sound-absorption structural containing hollow soft resonating body has widened suction
Vocal cords are wide, and all have good acoustically effective in wider frequency band range.It is also, empty
The soft-hearted structure of matter resonating body 2 is relatively easy, and processing cost is low；It is further, since hollow soft common
Vibration body 2 will all be gone to containing body 1 and protection body 3 without special, hence in so that containing hollow soft
The compound sound-absorption structural of matter resonating body has larger flexibility.Also, the present embodiment contains
The compound sound-absorption structural of hollow soft resonating body, also have be easily worked, in light weight, installation side
Just the advantages that, cost is relatively low.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although
The present invention is described in detail with reference to embodiment, one of ordinary skill in the art should
Understand, various combinations, modification or equivalent substitution are carried out to technical scheme, all
The spirit and scope of technical solution of the present invention are not departed from, the right that all should cover in the present invention is wanted
Ask among scope.
Claims (10)
- A kind of 1. compound sound-absorption structural containing hollow soft resonating body, it is characterised in that bag Include containing body, hollow soft resonating body and protection body；Filled with multiple described in the containing body Hollow soft resonating body, and form space between the hollow soft resonating body；The containing body Including open face, the open face position, which is provided with, prevents the hollow soft resonating body leakage The protection body, and be distributed with the protection body towards the through hole inside the containing body.
- 2. the compound sound-absorption structural according to claim 1 containing hollow soft resonating body, Characterized in that, the material of the hollow soft resonating body is latex or silica gel.
- 3. the compound sound-absorption structural according to claim 1 containing hollow soft resonating body, Characterized in that, the hollow soft resonating body is in hollow ball-shape, or in hollow ellipsoid shape.
- 4. the compound sound-absorption structural according to claim 1 containing hollow soft resonating body, It is characterized in that, described hollow soft filled with various shapes and sizes in the containing body Matter resonating body.
- 5. the compound sound-absorption structural according to claim 1 containing hollow soft resonating body, Characterized in that, the containing body is rectangular box.
- 6. the compound sound-absorption structural according to claim 5 containing hollow soft resonating body, Characterized in that, the containing body includes bottom plate and the gusset plate being fixed on the bottom plate, And the bottom plate and gusset plate are solid slab and are in rigid.
- 7. the compound sound-absorption structural according to claim 5 containing hollow soft resonating body, Characterized in that, the containing body includes bottom plate and the gusset plate being fixed on the bottom plate, The gusset plate is solid slab and is in rigidity, and the bottom plate is elastic plate.
- 8. the compound sound-absorption structural according to claim 1 containing hollow soft resonating body, Characterized in that, the containing body is the rectangle installing frame surrounded by gusset plate.
- 9. the compound sound-absorption structural according to claim 1 containing hollow soft resonating body, Characterized in that, the protection body is protecting wire net.
- 10. the composite sound absorbing knot according to claim 1 containing hollow soft resonating body Structure, it is characterised in that the protection body is perforated plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308932.1A CN107369436A (en) | 2016-05-11 | 2016-05-11 | A kind of compound sound-absorption structural containing hollow soft resonating body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308932.1A CN107369436A (en) | 2016-05-11 | 2016-05-11 | A kind of compound sound-absorption structural containing hollow soft resonating body |
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| CN107369436A true CN107369436A (en) | 2017-11-21 |
Family
ID=60304617
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| CN201610308932.1A Pending CN107369436A (en) | 2016-05-11 | 2016-05-11 | A kind of compound sound-absorption structural containing hollow soft resonating body |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777947A (en) * | 1995-03-27 | 1998-07-07 | Georgia Tech Research Corporation | Apparatuses and methods for sound absorption using hollow beads loosely contained in an enclosure |
| CN1307329A (en) * | 2000-01-25 | 2001-08-08 | 中国科学院声学研究所 | Resonant sound-absorbing tube bundle type perforated-plate structure |
| US20080135327A1 (en) * | 2005-03-30 | 2008-06-12 | Toshiyuki Matsumura | Sound Absorbing Structure |
| CN101727894A (en) * | 2010-01-08 | 2010-06-09 | 中国科学院声学研究所 | Composite sound absorbing device with built-in resonant cavity |
| CN102298925A (en) * | 2011-09-08 | 2011-12-28 | 周国柱 | Composite sound-absorbing structure |
-
2016
- 2016-05-11 CN CN201610308932.1A patent/CN107369436A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777947A (en) * | 1995-03-27 | 1998-07-07 | Georgia Tech Research Corporation | Apparatuses and methods for sound absorption using hollow beads loosely contained in an enclosure |
| CN1307329A (en) * | 2000-01-25 | 2001-08-08 | 中国科学院声学研究所 | Resonant sound-absorbing tube bundle type perforated-plate structure |
| US20080135327A1 (en) * | 2005-03-30 | 2008-06-12 | Toshiyuki Matsumura | Sound Absorbing Structure |
| CN101727894A (en) * | 2010-01-08 | 2010-06-09 | 中国科学院声学研究所 | Composite sound absorbing device with built-in resonant cavity |
| CN102298925A (en) * | 2011-09-08 | 2011-12-28 | 周国柱 | Composite sound-absorbing structure |
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Application publication date: 20171121 |