CN205033651U - Compound sound insulation board of viscoplasticity - Google Patents
Compound sound insulation board of viscoplasticity Download PDFInfo
- Publication number
- CN205033651U CN205033651U CN201520723879.2U CN201520723879U CN205033651U CN 205033651 U CN205033651 U CN 205033651U CN 201520723879 U CN201520723879 U CN 201520723879U CN 205033651 U CN205033651 U CN 205033651U
- Authority
- CN
- China
- Prior art keywords
- layer
- sound
- insulating layer
- absorbent treatment
- damping layer
- 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.)
- Expired - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
本实用新型公开了一种粘弹性复合隔声板，包括依次设置的阻尼层（1）、隔声层（2）和吸声层（3），所述阻尼层（1）的一侧与水下运动体的壳体表面相贴合，阻尼层（1）采用各向同性的聚氨酯或高分子树脂制作，隔声层（2）采用聚烯烃弹性体或玻璃纤维制作，吸声层（3）采用光敏树脂制作，所述吸声层（3）内部阵列设置有封闭式的空腔（4）。本实用新型所述阻尼层可以达到减振吸音的目的；隔声层起到加固定性的作用使整个复合隔声板整体具有一定的力学强度同时调节多层结构在中低频段的隔声能力；吸声层将外界噪声进行吸声，减少反射回波，吸声层内部设置空腔进一步增强了吸声的作用；通过本实用新型能有效吸声水下船舶的低频噪声，且构简单。
The utility model discloses a viscoelastic composite sound insulation board, which comprises a damping layer (1), a sound insulation layer (2) and a sound absorption layer (3) arranged in sequence, one side of the damping layer (1) is connected with water The shell surfaces of the lower moving body are attached together, the damping layer (1) is made of isotropic polyurethane or polymer resin, the sound insulation layer (2) is made of polyolefin elastomer or glass fiber, and the sound absorption layer (3) Made of photosensitive resin, the inner array of the sound-absorbing layer (3) is provided with closed cavities (4). The damping layer of the utility model can achieve the purpose of vibration reduction and sound absorption; the sound insulation layer plays the role of immobilization so that the whole composite sound insulation board has a certain mechanical strength and at the same time adjusts the sound insulation capacity of the multi-layer structure in the middle and low frequency bands The sound-absorbing layer absorbs external noise and reduces reflected echoes, and the cavity inside the sound-absorbing layer further enhances the sound-absorbing effect; the utility model can effectively absorb low-frequency noise of underwater ships, and the structure is simple.
Description
Technical field
The utility model relates to a kind of sound absorption structure, particularly relates to a kind of underwater sound MULTILAYER COMPOSITE acoustic construction with viscoelastic structure absorbent treatment.
Background technology
Underwater acoustic materials refers to the acoustical material used in facility under water, along with the appearance of nuclear-powered submarine and the development of Underwater Battery, undersea detection technology plays a part abnormal important, the quantity of nuclear submarine, capital ship, supertanker and combination vessel increases increasingly in recent years, thus also more and more higher to the requirement of underwater acoustic system and underwater noise control.Meanwhile, the kind of kuppe, sound transmitting window, baffle, reflector, anechoic coatings and volume sound absorber is also on the increase, and this facilitates the development of underwater acoustic materials greatly.
Use under being in the condition of external pressure effect in the usual environment under water of underwater acoustic materials, therefore certain compressive resistance must be had.Current underwater acoustic materials relates generally to foamed material and elastomeric material etc., and compared with close material, the most outstanding feature of foamed material is that characteristic impedance is low, and this is that they obtain the main cause of application in underwater acoustic system.And elastomeric material is widely used in the underwater acoustic system being representative with submarine sound eliminating tile.Polyurethane underwater acoustic materials is the new polymers class underwater acoustic materials that development in recent years is got up, and the application in underwater acoustic system such as the foamed material of polyurethane and elastomeric material has good development prospect.
Underwater acoustic materials relates generally to the aspects such as underwater acoustic absorption material, underwater acoustic transmission material and underwater acoustic reflection material.But be only do single research for the material of a certain kind in the application of current underwater acoustic materials, it can only absorb sound in the application usually can not anti-sound or sound insulation, and the phenomenon that there is sound leakage occurs.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of Viscoelastic Composite sound insulationg board, to solve the technological deficiency that underwater acoustic materials of the prior art can not meet instructions for use comprehensively, there is good sound absorption, anti-sound and sound insulation function, the generation of effective minimizing sound leakage phenomenon.
The purpose of this utility model is achieved through the following technical solutions: a kind of Viscoelastic Composite sound insulationg board, comprise the damping layer, sound insulating layer and the absorbent treatment that set gradually, the side of described damping layer and the surface of shell of underwater moving body fit, described damping layer adopts isotropic polyurethane or macromolecule resin to make, described sound insulating layer adopts polyolefin elastomer or glass fibre to make, described absorbent treatment adopts photosensitive resin to make, and described absorbent treatment inside is provided with enclosed cavity.Damping layer can reach the object of vibration damping sound-absorbing; Sound insulating layer plays reinforcing and acts on qualitatively, thus makes whole compound sound insulationg board entirety have certain mechanical strength and regulate sandwich construction at the sound-insulation capability of medium and low frequency section simultaneously; Outside noise absorbs sound by absorbent treatment, reduces reflection echo, and absorbent treatment inside arranges the effect that cavity further enhancing sound absorption.
The thickness of above-mentioned damping layer is 8mm ~ 20mm.
The thickness of above-mentioned sound insulating layer is 1.2mm ~ 1.8mm.
The thickness of above-mentioned absorbent treatment is 10mm ~ 50mm.
Above-mentioned cavity is made up of cylindrical cavity portion and conical cavity portion, and the opening in described conical cavity portion is towards described sound insulating layer.
Preferably, described damping layer, connected mode between sound insulating layer and absorbent treatment are integrated hot-forming, and moulding process is simple, cost is low.
Optionally, described in state damping layer, sound insulating layer and absorbent treatment bonding by bonding agent successively and one cold moudling, can make between each layer firmly bonding thus, preferably, described bonding agent is acrylic resin.
Preferably, described damping layer employing thickness is that the layer of polyurethane of 12mm makes, and described sound insulating layer employing thickness is that the polyolefin elastomer layer of 1.4mm makes, and described absorbent treatment employing thickness is the photosensitive resin layer making of 50mm.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, in the utility model from the material behavior selected, described damping layer can reach the object of vibration damping sound-absorbing; Sound insulating layer plays reinforcing and acts on qualitatively, thus makes whole compound sound insulationg board entirety have certain mechanical strength and regulate sandwich construction at the sound-insulation capability of medium and low frequency section simultaneously; Outside noise absorbs sound by absorbent treatment, reduces reflection echo, and described absorbent treatment inside arranges the effect that cavity further enhancing sound absorption.
2, the utility model has taken into account sound-absorbing material and sound insulating material performance separately, uses rich aeriferous, light-duty, low-impedance polyolefin elastomer material as sound insulating material, can high water pressure resistant.There is good sound isolation effect.
3, the utility model can adopt integrated hot pressing formed or by bonding agent bonding and one cold moudling, moulding process is simple, cost is low.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is cavity structure schematic diagram described in the utility model.
Description of reference numerals: 1, damping layer; 2, sound insulating layer; 3, absorbent treatment; 4, cavity; 41, cylindrical cavity portion; 42, conical cavity portion.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, utility model is described further:
As depicted in figs. 1 and 2, a kind of Viscoelastic Composite sound insulationg board, comprise the damping layer 1, sound insulating layer 2 and the absorbent treatment 3 that set gradually, the described side of damping layer 1 and the surface of shell of underwater moving body fit, described damping layer 1 adopts isotropic polyurethane or macromolecule resin to make, described sound insulating layer 2 adopts polyolefin elastomer or glass fibre to make, and described absorbent treatment 3 adopts photosensitive resin to make, and described absorbent treatment 3 inside is provided with enclosed cavity 4.The thickness of described damping layer is 8mm ~ 20mm, and the thickness of described sound insulating layer is 1.2mm ~ 1.8mm, and the thickness of described absorbent treatment is 10mm ~ 50mm.
In the present embodiment, preferably, described damping layer employing thickness is that the layer of polyurethane of 12mm makes, and described sound insulating layer employing thickness is that the polyolefin elastomer layer of 1.4mm makes, and described absorbent treatment thickness is 50mm and is made by 3D printing shaping by photosensitive resin.
In originally implementing, described cavity 4 is made up of cylindrical cavity portion 41 and conical cavity portion 42, and the opening in described conical cavity portion 42 is towards described sound insulating layer.Preferably, the diameter in described cylindrical cavity portion 41 is 1.4mm, is highly 24mm; Described conical cavity portion 42 outside diameter is 9.6mm, end diameter is 1.4mm, is highly 24mm; The two ends of cavity 4 are 1mm apart from the distance on described absorbent treatment 3 surface.
In the present embodiment, preferably, described damping layer, connected mode between sound insulating layer and absorbent treatment are integrated hot-forming, and moulding process is simple, cost is low.
As another optional scheme of the present embodiment, described in state damping layer, sound insulating layer and absorbent treatment bonding by bonding agent successively and one cold moudling, can make between each layer firmly bonding thus, preferably, described bonding agent is acrylic resin.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. a Viscoelastic Composite sound insulationg board, it is characterized in that: comprise the damping layer (1), sound insulating layer (2) and the absorbent treatment (3) that set gradually, the side of described damping layer (1) and the surface of shell of underwater moving body fit, described damping layer (1) adopts isotropic polyurethane or macromolecule resin to make, described sound insulating layer (2) adopts polyolefin elastomer or glass fibre to make, described absorbent treatment (3) adopts photosensitive resin to make, and described absorbent treatment (3) local array is provided with enclosed cavity (4).
2. a kind of Viscoelastic Composite sound insulationg board as claimed in claim 1, is characterized in that: the thickness of described damping layer (1) is 8mm ~ 20mm.
3. a kind of Viscoelastic Composite sound insulationg board as claimed in claim 1, is characterized in that: the thickness of described sound insulating layer (2) is 1.2mm ~ 1.8mm.
4. a kind of Viscoelastic Composite sound insulationg board as claimed in claim 1, is characterized in that: the thickness of described absorbent treatment (3) is 10mm ~ 50mm.
5. a kind of Viscoelastic Composite sound insulationg board as claimed in claim 1, is characterized in that: described cavity (4) is made up of cylindrical cavity portion (41) and conical cavity portion (42), and the opening of described conical cavity portion (42) is towards described sound insulating layer (2).
6. a kind of Viscoelastic Composite sound insulationg board as claimed in claim 1, is characterized in that: described damping layer (1), connected mode between sound insulating layer (2) and absorbent treatment (3) are integrated hot-forming.
7. a kind of Viscoelastic Composite sound insulationg board as claimed in claim 1, is characterized in that: described damping layer (1), sound insulating layer (2) and absorbent treatment (3) successively by bonding agent bonding and one cold moudling.
8. a kind of Viscoelastic Composite sound insulationg board as claimed in claim 7, is characterized in that: described bonding agent is acrylic resin.
9. a kind of Viscoelastic Composite sound insulationg board as described in as arbitrary in Claims 1-4, it is characterized in that: described damping layer (1) employing thickness is that the layer of polyurethane of 12mm makes, described sound insulating layer (2) employing thickness is that the polyolefin elastomer layer of 1.4mm makes, and described absorbent treatment (3) employing thickness is that the photosensitive resin layer of 50mm makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520723879.2U CN205033651U (en) | 2015-09-18 | 2015-09-18 | Compound sound insulation board of viscoplasticity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520723879.2U CN205033651U (en) | 2015-09-18 | 2015-09-18 | Compound sound insulation board of viscoplasticity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205033651U true CN205033651U (en) | 2016-02-17 |
Family
ID=55292578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520723879.2U Expired - Fee Related CN205033651U (en) | 2015-09-18 | 2015-09-18 | Compound sound insulation board of viscoplasticity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205033651U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109122A (en) * | 2015-09-18 | 2015-12-02 | 贵州大学 | Viscoelasticity composite sound insulating board |
| CN112829387A (en) * | 2021-02-26 | 2021-05-25 | 彩虹无人机科技有限公司 | Sound-absorbing tile attached to outer surface of underwater vehicle shell and underwater vehicle |
| CN116477028A (en) * | 2023-04-26 | 2023-07-25 | 上海交通大学 | A Locally Small Radius of Curvature Airfoil Structure for Underwater Vehicles |
-
2015
- 2015-09-18 CN CN201520723879.2U patent/CN205033651U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109122A (en) * | 2015-09-18 | 2015-12-02 | 贵州大学 | Viscoelasticity composite sound insulating board |
| CN112829387A (en) * | 2021-02-26 | 2021-05-25 | 彩虹无人机科技有限公司 | Sound-absorbing tile attached to outer surface of underwater vehicle shell and underwater vehicle |
| CN116477028A (en) * | 2023-04-26 | 2023-07-25 | 上海交通大学 | A Locally Small Radius of Curvature Airfoil Structure for Underwater Vehicles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105109122A (en) | Viscoelasticity composite sound insulating board | |
| CN102354493B (en) | Controllable underwater sound-absorbing panel | |
| CN103738037B (en) | A kind of medium and low frequency acoustical and thermal composite panel | |
| CN108544824B (en) | An acoustic cover for underwater vibration reduction and sound absorption of ships | |
| CN205033651U (en) | Compound sound insulation board of viscoplasticity | |
| CN108492814A (en) | A kind of combination cavity type acoustic stimulation based on impedance transition mechanism type | |
| CN105006226A (en) | Cylindrical cavity combination sound-absorbing coating | |
| CN103600809B (en) | A kind of vibration and noise reducing Ship Structure flexible interlayer sheet | |
| CN102543062B (en) | Broadband pressureproof sound reflecting structure | |
| CN113808563A (en) | Low-frequency sound absorption covering layer containing cylindrical scatterer with gradient parameters | |
| CN108172208A (en) | A Local Resonant Chiral Honeycomb Covering Layer | |
| CN104464710A (en) | Acoustic sandwich panel | |
| CN108447466A (en) | A Locally Resonant Acoustic Covering | |
| CN204904826U (en) | Embedded cylindrical cavity of binary overburden that absorbs sound | |
| EP2960900B1 (en) | Systems and methods for acoustic windows | |
| CN105620697A (en) | Multilayer material combined cavity anechoic tile | |
| CN204926787U (en) | Combined sound absorption overburden of cylindrical cavity | |
| CN103538534A (en) | Composite damping vibration attenuation sound insulation board | |
| CN206711599U (en) | A kind of cycle born of the same parents structure composite sound panel | |
| CN201554527U (en) | Chip break angle silencer | |
| CN204288799U (en) | A kind of sound insulation of the compound for sonar array baffle | |
| CN203977620U (en) | The light steel wall of sound insulation | |
| CN204496908U (en) | A kind of underwater sound isolation baffle | |
| CN202677822U (en) | Sponge acoustical isolation baffle | |
| CN110599993A (en) | Carbon fiber sound baffle for underwater detection equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20210918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |