CN110588085A - Acoustic lattice interlayer gradient plate - Google Patents

Acoustic lattice interlayer gradient plate Download PDF

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Publication number
CN110588085A
CN110588085A CN201910760724.9A CN201910760724A CN110588085A CN 110588085 A CN110588085 A CN 110588085A CN 201910760724 A CN201910760724 A CN 201910760724A CN 110588085 A CN110588085 A CN 110588085A
Authority
CN
China
Prior art keywords
sound insulation
acoustic
bracing pieces
gradient plate
supporter
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.)
Pending
Application number
CN201910760724.9A
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Chinese (zh)
Inventor
陈照波
付涛
程明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Research Institute Of Mechanical And Electrical Engineering (jiashan) Of Harbin University Of Technology
Original Assignee
Research Institute Of Mechanical And Electrical Engineering (jiashan) Of Harbin University Of Technology
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Research Institute Of Mechanical And Electrical Engineering (jiashan) Of Harbin University Of Technology filed Critical Research Institute Of Mechanical And Electrical Engineering (jiashan) Of Harbin University Of Technology
Priority to CN201910760724.9A priority Critical patent/CN110588085A/en
Publication of CN110588085A publication Critical patent/CN110588085A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/016—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of aluminium or aluminium alloys
    • 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
    • B32B3/28—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 comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • 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
    • B32B5/14—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 a layer differing constitutionally or physically in different parts, e.g. denser near its faces
    • 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
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)

Abstract

An acoustic lattice interlayer gradient plate belongs to the technical field of noise treatment. Two top surface board levels set up side by side from top to bottom and be fixed with the dot matrix core between two top surface boards, and the material of every top surface board is the functional gradient material, and the dot matrix core includes the multiunit supporter, and the multiunit supporter is the setting of rectangular array next-door neighbour, and every group supporter all includes four bracing pieces, and the one end fixed connection of four bracing pieces is in the same place, and the other end of four bracing pieces is radial setting. The invention realizes the light weight and high strength, and better realizes the coordination between the high strength and the high sound insulation performance; lower density, i.e., lighter mass; the frequency position of the whole sound insulation peak value is changed in a targeted manner, the range of the noise reduction frequency band of the structure is enlarged, the noise reduction and sound insulation performance of the structure is improved to the greatest extent, and the defects of narrow sound insulation frequency band and poor sound insulation performance of the traditional sandwich plate structure are overcome.

Description

Acoustic lattice interlayer gradient plate
Technical Field
The invention relates to an acoustic dot matrix interlayer gradient plate, and belongs to the technical field of noise treatment.
Background
The sandwich panel is widely applied to the wall plate structure of carrying equipment such as high-speed trains, airplanes and ships due to the characteristics of light weight, heat insulation, better vibration reduction, noise reduction and the like. In the sandwich core structure, the lattice sandwich can better meet the requirements of the engineering field on structure lightening, low vibration and high sound insulation performance by virtue of high specific height, impact resistance, collision energy absorption and good heat and sound insulation performance of the lattice sandwich. However, the differences of working environments in different application fields are large, requirements are different, and requirements of various fields on rigidity, strength, vibration reduction, noise reduction and other performances are difficult to meet.
Disclosure of Invention
In order to solve the problems in the background technology, the invention provides an acoustic lattice interlayer gradient plate.
The invention adopts the following technical scheme: the utility model provides an acoustics dot matrix intermediate layer gradient board, includes dot matrix core and two top surface boards, two top surface board levels set up side by side from top to bottom and be fixed with the dot matrix core between two top surface boards, and the material of every top surface board is the functional gradient material, the dot matrix core includes the multiunit supporter, the multiunit supporter is the setting of rectangle array next-door neighbour, and every group supporter all includes four bracing pieces, the one end fixed connection of four bracing pieces is in the same place, and the other end of four bracing pieces is radial setting.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the lattice core material and the surface layer panel structure of the functional gradient material are used, so that the light weight and the high strength are realized while the sound insulation effect is ensured, and the coordination between the high strength and the high sound insulation performance is better realized; compared with the traditional sandwich plate which uses metal materials as integral materials, the sandwich plate has lower density, namely lighter weight; the sizes of all parts of the structure can be adjusted according to the working environment, the frequency position of the whole sound insulation peak value is changed in a targeted manner by changing the surface layer panel material parameters and the lattice core material unit structure parameters, the range of the noise reduction frequency band of the structure is expanded, the noise reduction and sound insulation performance of the structure is improved to the greatest extent, and the defects of narrow sound insulation frequency band and poor sound insulation performance of the traditional sandwich plate structure are overcome.
Drawings
FIG. 1 is an isometric view of the overall construction of an acoustic lattice sandwich gradient plate of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The first embodiment is as follows: as shown in fig. 1, the invention discloses an acoustic lattice sandwich gradient plate, which comprises a lattice core material 2 and two surface layer panels 1, wherein the two surface layer panels 1 are horizontally arranged in parallel up and down, the lattice core material 2 is fixed between the two surface layer panels 1, the material of each surface layer panel 1 is a functional gradient material with high strength and high density, and the thickness of each surface layer panel 1 is freely set according to actual needs; dot matrix core 2 includes the multiunit supporter, the multiunit supporter is the setting of rectangular array next-door neighbour, and every supporter of group all includes four bracing pieces, the one end fixed connection of four bracing pieces is in the same place, and the other end of four bracing pieces is radial setting, and the supporter structure has characteristics such as specific gravity light, intensity height, because dot matrix core 2 has formed the multiple spot after pasting with top layer panel 1 and has combined, and the reliability is better.
The second embodiment is as follows: in this embodiment, the lattice core 2 and the two surface panels 1 are bonded and fixed by a strong adhesive. Greatly simplifying the processing technology and reducing the manufacturing cost of the structure.
The third concrete implementation mode: this embodiment is further described as a first embodiment, and each of the skin panels 1 has a non-uniform structure.
The fourth concrete implementation mode: this embodiment is a further description of the third embodiment, and each of the surface panels 1 is formed by gradually changing the gradient of aluminum and silica in the plate length direction.
Setting material parameters rho (z) and E (z) of the functional gradient panel to be in power function distribution along the thickness direction:
where P is the functional gradient index, h is the sheet thickness, z is the ordinate of the functionally gradient panel in the coordinate system, the subscript 'c' represents the silica material and'm' represents the aluminum material.
The fifth concrete implementation mode: as shown in fig. 1, this embodiment is a further description of the first embodiment, and the included angle between each two adjacent support rods in each group of support bodies is the same.
The sixth specific implementation mode: as shown in fig. 1, this embodiment is further described as an embodiment five, and each of the support rods is a cylinder. Each group of supporting bodies are symmetrically arranged at a certain included angle by four cylinders, and are formed at one time by a 3D printing technology, so that the supporting body has the characteristics of high precision, high strength and the like.
The seventh embodiment: in the present embodiment, the dot matrix core 2 and the two skin panels 1 are made of the same material, which will be described further below with reference to the first embodiment.
The specific implementation mode is eight: in this embodiment, the lattice core 2 and the two surface panels 1 are made of lightweight aluminum.
The parameters of the two surface panels 1 determine the sound insulation characteristic of the sound insulation board, the sound insulation board mainly plays a sound insulation effect, and the parameters of the lattice core material 2 determine the noise reduction effect of the medium and low frequency of the structure and the strength of the structure, and are mainly used for reducing the medium and low frequency noise and playing a supporting role. Through the optimized design, the invention has the advantages of light weight, high strength, good sound insulation property and low noise.
When the sound insulation board is designed, parameters of the surface layer panel 1 and the lattice core material 2 are designed according to the frequency band and the structural quality requirements of sound insulation, wherein the parameters comprise material density, elastic modulus of the board, structure and size of the lattice structure and the like.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. An acoustic lattice sandwich gradient plate is characterized in that: including dot matrix core (2) and two top surface board (1), two top surface board (1) levels set up side by side from top to bottom and are fixed with dot matrix core (2) between two top surface board (1), and the material of every top surface board (1) is the functional gradient material, dot matrix core (2) include the multiunit supporter, the multiunit supporter is the setting of rectangle array next-door neighbour, and every group supporter all includes four bracing pieces, the one end fixed connection of four bracing pieces is in the same place, and the other end of four bracing pieces is radial setting.
2. An acoustic lattice sandwich gradient plate as claimed in claim 1, wherein: the lattice core material (2) is fixedly bonded with the two surface layer panels (1) through the super glue.
3. An acoustic lattice sandwich gradient plate as claimed in claim 1, wherein: each surface layer panel (1) is of a non-uniform structure.
4. An acoustic lattice sandwich gradient plate as claimed in claim 3, wherein: each surface panel (1) is formed by aluminum and silicon dioxide in a gradient manner along the length direction of the panel.
5. An acoustic lattice sandwich gradient plate as claimed in claim 1, wherein: every group every two adjacent bracing pieces in the supporter contained angle homogeneous phase is the same.
6. An acoustic lattice sandwich gradient plate as claimed in claim 5, wherein: each support rod is a cylinder.
7. An acoustic lattice sandwich gradient plate as claimed in claim 1, wherein: the lattice core material (2) and the two surface layer panels (1) are made of the same material.
8. An acoustic lattice sandwich gradient plate as claimed in claim 7, wherein: the lattice core material (2) and the two surface layer panels (1) are made of light aluminum.
CN201910760724.9A 2019-08-16 2019-08-16 Acoustic lattice interlayer gradient plate Pending CN110588085A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910760724.9A CN110588085A (en) 2019-08-16 2019-08-16 Acoustic lattice interlayer gradient plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910760724.9A CN110588085A (en) 2019-08-16 2019-08-16 Acoustic lattice interlayer gradient plate

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113103689A (en) * 2021-04-30 2021-07-13 中国商用飞机有限责任公司北京民用飞机技术研究中心 Airplane nacelle noise elimination device based on lattice configuration and manufacturing method thereof
CN114619726A (en) * 2022-03-09 2022-06-14 江苏科技大学 Novel lattice sandwich board based on acoustic black holes and manufacturing method

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CN104550980A (en) * 2015-01-21 2015-04-29 南京工业大学 Preparation method for high-gradient porous metal film
CN106866896A (en) * 2017-02-28 2017-06-20 西安交通大学 A kind of dot matrix metal composite construction with nano-core-shell structure and preparation method thereof

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CN101740022A (en) * 2009-12-18 2010-06-16 西北有色金属研究院 Metallic fiber gradient hole sound absorbing material and method for preparing same
CN104289865A (en) * 2014-08-21 2015-01-21 青岛蓝图文化传播有限公司市南分公司 Dot matrix truss structure function material and machining method thereof
CN104260436A (en) * 2014-10-10 2015-01-07 哈尔滨工业大学 Metal pyramid type lattice sandwich plate and preparation method thereof
CN104550980A (en) * 2015-01-21 2015-04-29 南京工业大学 Preparation method for high-gradient porous metal film
CN106866896A (en) * 2017-02-28 2017-06-20 西安交通大学 A kind of dot matrix metal composite construction with nano-core-shell structure and preparation method thereof

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113103689A (en) * 2021-04-30 2021-07-13 中国商用飞机有限责任公司北京民用飞机技术研究中心 Airplane nacelle noise elimination device based on lattice configuration and manufacturing method thereof
CN113103689B (en) * 2021-04-30 2023-11-21 中国商用飞机有限责任公司北京民用飞机技术研究中心 Aircraft nacelle muffler device based on lattice configuration and manufacturing method thereof
CN114619726A (en) * 2022-03-09 2022-06-14 江苏科技大学 Novel lattice sandwich board based on acoustic black holes and manufacturing method
CN114619726B (en) * 2022-03-09 2023-10-13 江苏科技大学 Lattice sandwich board based on acoustic black holes and manufacturing method

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Application publication date: 20191220