CN112172265B - A buffer board for amortization fort - Google Patents

A buffer board for amortization fort Download PDF

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Publication number
CN112172265B
CN112172265B CN202010911475.1A CN202010911475A CN112172265B CN 112172265 B CN112172265 B CN 112172265B CN 202010911475 A CN202010911475 A CN 202010911475A CN 112172265 B CN112172265 B CN 112172265B
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China
Prior art keywords
layer
fiber layer
square
synthetic fiber
rubber layer
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CN202010911475.1A
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Chinese (zh)
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CN112172265A (en
Inventor
赵子杰
张艳洲
吴继福
于国之
王邦伟
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Building Environments (AREA)

Abstract

The invention discloses a buffer board for a silencing fort, which has a three-layer structure from inside to outside, namely a synthetic fiber layer 1, a 3D three-dimensional fiber layer 2 and a rubber layer 3; the innermost synthetic fiber layer 1 is a flat square synthetic fiber board; the middle 3D three-dimensional fiber layer 2 is composed of a square fiber plate and cluster fibers 4, the cluster fibers 4 are uniformly distributed on the upper surface of the square plate, and the fibers are tightly attached to the bottom of the rubber layer 3 from the top; the outermost layer is a rubber layer 3, and regular rectangular pyramid hollow wedges are arranged on the outermost layer at equal intervals in the transverse direction and the longitudinal direction; the top of the wedge is provided with a silencing hole 5. The present invention can absorb the great noise produced during the shooting of the shell and reduce the direct impact of gunpowder gas on the wall.

Description

A buffer board for amortization fort
Technical Field
The invention belongs to the field of cross-medium projectile inclined water entry experiments, and particularly relates to a buffer plate for a silencing fort.
Background
In recent years, the security of the offshore field is more and more emphasized by countries, and the military strength of each country on the sea is continuously strengthened, so that underwater weapons become an important research subject. At present, underwater weapons in all countries are developed towards high speed, long distance, high damage efficiency and intellectualization. In the research process of underwater weapons, experiments are an important research means. In the experimental setting process of the cannonball, the design and installation of the launching platform are very important.
There are many patents that optimize the launching device for cannonball experiments. Chinese patent 106353066A discloses an experimental device for stable high-speed variable-angle water entry of a rotating object, which can stably release water entry objects in different shapes and rotating at high speed, and can accurately control the water entry angle of the object. Chinese patent 109781384A discloses a multi-navigation body parallel water inlet experimental device, which can realize the synchronous and asynchronous water inlet of navigation bodies in a plurality of navigation body slideways through electromagnets, and has the advantages of simple operation and higher precision and efficiency.
Although the launching device of the cannonball experiment is more and more perfect, the perfect part is mostly focused on experimental performance, and the influence of the experiment on the environment, such as the influence of noise on the environment, is rarely considered.
Disclosure of Invention
The invention aims to provide a buffer plate for a sound attenuation castle.
The technical solution for realizing the purpose of the invention is as follows: a buffer board for a sound attenuation fort has a three-layer structure from inside to outside, and the three-layer structure comprises a synthetic fiber layer 1, a 3D three-dimensional fiber layer 2 and a rubber layer 3;
the innermost synthetic fiber layer 1 is a flat square synthetic fiber board with the thickness of 10-20 mm.
The middle 3D three-dimensional fiber layer 2 consists of a square fiber board and cluster fibers 4, and the thickness of the square fiber board is 15-20 mm; the clumpy fibers 4 are uniformly distributed on the upper surface of the square fiberboard, the length is 5-30 mm, the specific size depends on the shape of the bottom of the rubber layer, and the tops of the clumpy fibers 4 are tightly attached to the bottom of the rubber layer 3.
The outermost layer is a rubber layer 3 on which regular rectangular pyramid hollow wedges which are arranged at equal intervals in the transverse and longitudinal directions are uniformly distributed; the length of the gap between the wedges is 1/3-1/2 of the square width of the bottom surface of the wedge; the top of each wedge is provided with a silencing hole 5, the shape of each wedge is a circular through hole, and the diameter of each through hole is 1/5-1/3 of the square width of the bottom of each wedge;
the width of the synthetic fiber layer 1 and the 3D three-dimensional fiber layer 2 is the same, and the width of the square in the middle of the rubber layer 3 is the same as that of the synthetic fiber layer 1; rectangular flat blocks are distributed around the square of the rubber layer 3 and used for wrapping the side surfaces of the synthetic fiber layer 1 and the 3D three-dimensional fiber layer 2; the length of the rectangle is the same as the width of the square of the rubber layer 3, and the width is the sum of the thicknesses of the square fiberboards of the synthetic fiber layer 1 and the 3D stereoscopic fiber layer 2.
The synthetic fiber layer 1, the 3D three-dimensional fiber layer 2 and the rubber layer 3 are adhered through a special adhesive to form the integral buffer board.
Compared with the prior art, the invention has the following remarkable advantages: (1) The wedges on the rubber layer can partially weaken noise, and the silencing holes on the wedges can absorb noise with different frequencies. The 3D stereoscopic fiber layer may consume and absorb noise. The synthetic fiber layer may attenuate transmission of vibration between the baffle and the wall. Therefore, the invention can absorb the huge noise generated when the cannonball is shot and reduce the influence on surrounding residents and the environment. (2) The 3D three-dimensional fiber layer and the rubber layer can control strong airflow generated by shell emission, and direct impact of gunpowder gas on a wall body can be relieved. And (3) the buffer layer is simple to install and easy to replace.
Drawings
Fig. 1 is a schematic view of a 3D solid fiber layer of a buffer plate for a sound deadening castle.
Fig. 2 is a schematic view of a rubber layer of a baffle plate for a sound deadening castle.
FIG. 3 is a schematic cross-sectional view of a baffle for a sound deadening castle.
Fig. 4 is a schematic view showing the installation of a buffer plate for a sound-deadening castle.
Detailed Description
The invention is further described with reference to the accompanying figures 1 to 4 and examples.
A buffer board for a sound deadening castle is composed of a synthetic fiber layer 1, a 3D three-dimensional fiber layer 2 and a rubber layer 3. 4 are the plexiform fibre on 3D solid fibrous layer 2, 5 are the bloop on the rubber layer wedge, 6 are the internal expansion bolt hole for fixed buffer plate. The buffer board is installed at the wall all around in amortization fort.
In conducting experiments with weaponry, the firing of the cannon can produce significant noise and can produce a significant blast of powder gas. In order to reduce the influence of noise, a cavity structure and a wedge structure are two most commonly used sound absorption structures. If the sound absorber combines the cavity structure and the wedge structure, the sound absorption coefficient and the sound absorption bandwidth of the sound absorber in a high frequency range are increased, and the sound absorption performance in a low frequency range is improved.
The high impact rubber layer 1 combines a cavity with a wedge. The rubber layer 3 is in the shape of 25 regular rectangular pyramid hollow wedges which are arranged in a transverse and longitudinal equal interval mode. The tops of the wedges are provided with silencing holes, the shapes of the silencing holes are circular through holes, and the diameters of the through holes are 1/5 of the square width of the bottoms of the wedges. Therefore, a larger space is formed inside the hollow wedge to consume the impact and noise generated by the shooting of the cannon. According to estimation, the gas impact of gunpowder generated in the silencing pot is about 100MPa, so that the included angle between the generatrix of the regular rectangular pyramid conical wedge on the rubber layer 3 and the bottom surface is 65 degrees, and the influence of noise and gas impact can be well reduced. Meanwhile, in order to ensure that the buffer plate can bear the impact of gunpowder gas, the length of a gap between the wedges on the rubber layer 3 is 1/3 of the square width of the bottom surface of each wedge.
In the middle of the buffer plate is a 3D three-dimensional fiber layer 2. The square board in the 3D three-dimensional fibrous layer 2 comprises the sound-absorbing fiber, and the noise that the sound-absorbing hole got into is absorbed. Meanwhile, the cluster fibers 4 in the 3D three-dimensional fiber layer 2 can effectively dissipate noise and shock waves.
The synthetic fiber layer 1 is arranged at the bottommost layer of the buffer board, and the synthetic fiber layer 1 can mainly weaken vibration transmission between the buffer board and the wall and protect the wall to a certain extent.
The synthetic fiber layer 1,3D three-dimensional fiber layer 2 and the rubber layer 3 are adhered by a special adhesive silicone structural adhesive 995 to form an integral buffer board. In which the synthetic fibre layers 1,3d and the three-dimensional fibre layers 2 are of the same size and are joined by means of a special adhesive. The rubber layer 3 is slightly larger in size and wraps the side edge portions of the three-dimensional fiber layers 2 of the synthetic fiber layers 1,3 d.
The invention relates to a buffer plate for a sound attenuation fort, which is installed and fixed through 4 penetrating holes, namely inner expansion bolt fixing holes 6, on the buffer plate. Firstly, the buffer plate is fixedly arranged on a wall body through 4 inner expansion bolt fixing holes 6 by using expansion bolts, and then the four side faces are bonded and connected through silicone structural adhesive between the buffer plate and the buffer plate.

Claims (6)

1. A buffer board for amortization fort which characterized in that: the three-dimensional fiber composite material comprises three layers of structures from inside to outside, namely a synthetic fiber layer (1), a 3D (three-dimensional) fiber layer (2) and a rubber layer (3);
the innermost synthetic fiber layer (1) is a flat square synthetic fiber board; the 3D three-dimensional fiber layer (2) is composed of a square fiber board and cluster fibers (4), the cluster fibers (4) are uniformly distributed on the upper surface of the square fiber board, and the tops of the cluster fibers (4) are tightly attached to the bottom of the rubber layer (3); the outermost layer is a rubber layer (3) on which regular rectangular pyramid hollow wedges are arranged at equal intervals in the transverse direction and the longitudinal direction; the top of each wedge is provided with a bloop (5);
the widths of the synthetic fiber layer (1) and the 3D three-dimensional fiber layer (2) are the same, and the width of a square in the middle of the rubber layer (3) is the same as that of the synthetic fiber layer (1); rectangular flat blocks are distributed around the square of the rubber layer (3) and are used for wrapping the side surfaces of the synthetic fiber layer (1) and the 3D three-dimensional fiber layer (2); the length of the rectangle is the same as the square width of the rubber layer (3), and the width is the sum of the thicknesses of the square fiberboards of the synthetic fiber layer (1) and the 3D stereoscopic fiber layer (2).
2. The baffle plate for a hamburger as recited in claim 1, wherein: the thickness of the synthetic fiber layer (1) is 10-20 mm.
3. The baffle for a hamburger as recited in claim 1, wherein: the thickness of the square fiberboard is 15-20 mm; the length of the cluster fiber (4) is 5-30 mm.
4. The baffle plate for a hamburger as recited in claim 1, wherein: the length of the gap between the wedges is 1/3-1/2 of the square width of the bottom surface of each wedge.
5. The baffle plate for a hamburger as recited in claim 1, wherein: the sound deadening holes (5) are circular through holes, and the diameter of each through hole is 1/5-1/3 of the square width of the wedge bottom.
6. The baffle for a hamburger as recited in claim 1, wherein: the synthetic fiber layer (1), the 3D three-dimensional fiber layer (2) and the rubber layer (3) are adhered through an adhesive to form the integral buffer board.
CN202010911475.1A 2020-09-02 2020-09-02 A buffer board for amortization fort Active CN112172265B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010911475.1A CN112172265B (en) 2020-09-02 2020-09-02 A buffer board for amortization fort

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Application Number Priority Date Filing Date Title
CN202010911475.1A CN112172265B (en) 2020-09-02 2020-09-02 A buffer board for amortization fort

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CN112172265B true CN112172265B (en) 2022-10-21

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2040516U (en) * 1988-09-01 1989-07-05 郑志 Asbestos flocking sound absorbing plate
CN2279396Y (en) * 1996-08-23 1998-04-22 于钢瑞 Hollow plastic pile coating acoustical plate
CN202016442U (en) * 2011-03-07 2011-10-26 广德天运无纺有限公司 Sound deadening flameproof pad for vehicle
CN102384571A (en) * 2011-09-29 2012-03-21 Tcl空调器（武汉）有限公司 Silencing structure of air-conditioning compressor
CN103943101A (en) * 2014-03-19 2014-07-23 中船重工海声科技有限公司 Acoustical sound absorption module for anechoic tank
CN209079366U (en) * 2018-09-08 2019-07-09 杭州圣艾侬壁布有限公司 A kind of noise reduction wall cloth

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