CN108058454A - A kind of adaptive damping noise reduction foam layer plate and preparation method thereof - Google Patents
A kind of adaptive damping noise reduction foam layer plate and preparation method thereof Download PDFInfo
- Publication number
- CN108058454A CN108058454A CN201711463160.XA CN201711463160A CN108058454A CN 108058454 A CN108058454 A CN 108058454A CN 201711463160 A CN201711463160 A CN 201711463160A CN 108058454 A CN108058454 A CN 108058454A
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- qtech413
- damping
- panel
- noise reduction
- isomax
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
-
- 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
- B32B5/18—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 features of a layer of foamed material
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
-
- 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
- B32B2605/00—Vehicles
Abstract
The invention discloses a kind of adaptive damping noise reduction foam layer plates and preparation method thereof, sandwich plate includes top panel, lower panel and the foam core positioned at interlayer, the foam core is Meta Materials isotropism ISOMAX foaming structures, is made of anisotropic square wall panel structure and triangle pyramid wall panel structure；The top panel and lower panel are Qtech413 damping-constraining panels, and damp gluing knot by Qtech413 macromolecules by upper and lower two pieces of identical sheet metals and form.The sandwich plate, even if in the case of very light weight, still possesses extremely strong rigidity and intensity compared with conventional metals honeycomb and foaming structure, under the excitation of violent sound and vibration, possesses very strong resistance to deformation and survivability, the performance with ultra-light ultra-strong；In addition, the upper and lower damping panel of the present invention, uses Qtech413 damping-constraining panels, it, still can be in wide-band adaptive damping noise reduction on the premise of not increasing architecture quality excessively and not influencing the original mechanical property of structure.
Description
Technical field
The invention belongs to aerospace, ships and high ferro technical fields, and in particular to a kind of adaptive damping noise reduction foam
Sandwich plate and preparation method thereof.
Background technology
Metal beehive and foam layer plate are integrated because of multifunction structures such as its lightweight, high-strength, heat-insulated, vibration damping and noise reductions
Feature is widely used in the wall panel structure of aerospace flight vehicle, rocket launcher, ships and high ferro etc..Existing technology,
The research of intensity and vibration and noise reducing performance to light porous material Sandwich Plates focuses mostly on four traditional deformations, six sides
In shape honeycomb sandwich panel and foam layer harden structure.With science and technology and the need of economic fast development and national defence war preparedness
Will, the speed of aerospace flight vehicle, rocket launcher, ships and high ferro etc. is getting faster, and the smart machine of installation is increasingly
It is more, traditional metal beehive sandwich plate and metal foam Sandwich Plates, in the case where meeting architecture quality requirement, just
The performances such as degree, intensity and vibration and noise reducing have been unable to meet the basic demand of structural safety performance.Therefore, structure is being mitigated as far as possible
In the case of quality, develop and possess higher intensity, rigidity, the high-performance panel structure of more preferable adaptive damping noise reduction, have become
For the task of top priority.
In terms of vibration and noise reducing, traditional porous material sandwich plate, mostly by applying formal structure or filling in sandwich layer
Damping material, to carry out the vibration and noise reducing of some low-frequency ranges.On the one hand, formal structure or filling damping material are applied, it can mistake
It is increase quality, thus the excessive structure and mechanical property influenced or change porous material sandwich plate more.It in addition, often can only be
Some low-frequency range vibration and noise reducings, it is difficult to adaptive damping noise reduction.
Therefore, in order to overcome legacy cellular and foam layer harden structure there are the shortcomings that, prepare ultralight high strongly-adaptive and subtract
It shakes noise reduction foam layer harden structure, it has also become the active demand in the fields such as aerospace, ships and high ferro.
The content of the invention
The shortcomings that the purpose of the present invention is overcoming conventional foam sandwich plate carrying difference and being difficult adaptive damping noise reduction, from knot
Structure and two aspect of functional material are set out, and are the fields such as aerospace, ships and high ferro, are provided a kind of adaptive damping noise reduction foam
Sandwich plate and preparation method thereof.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of adaptive damping noise reduction foam layer plate, including top panel, lower panel and the foam core positioned at interlayer,
The foam core is Meta Materials isotropism ISOMAX foaming structures, by anisotropic square wall panel structure and triangle gold
Word tower wall harden structure forms；The top panel and lower panel are Qtech413 damping-constraining panels, and identical by upper and lower two pieces
Sheet metal by Qtech413 macromolecules damp gluing knot form.
A kind of preparation method of adaptive damping noise reduction foam layer plate, comprises the following steps：
(1) 3D printing ISOMAX foam sandwich constructions；
(2) by after Qtech413 uniform stirrings, it is evenly coated on a sheet metal, afterwards by another identical metal
Thin plate, boundary alignment are pasted on Qtech413 films, after compression, when placement 12 is small, treat that the cooling completely of Qtech413 films is solidifying
Gu it is fabricated to Qtech413 damping-constraining panels；
(3) by after JL-499 refractory metal Instant cement uniform stirrings, single side is evenly coated in damping-constraining panel under
On damping-constraining panel, the ISOMAX foam cores with printing in step (1), boundary alignment bonding is to get to required adaptive
Vibration and noise reducing foam layer plate.
Compared with prior art, advantageous effect caused by technical scheme is：
The sandwich plate of the present invention, uses Meta Materials ISOMAX foaming structures, it is existing uniquely to reach more at present
The isotropism foaming structure of the Porous materials theoretical stiffness limit, compared with conventional metals honeycomb and foaming structure, even if in quality
In the case of very light, still possess extremely strong rigidity and intensity, under the excitation of violent sound and vibration, possess very strong resistance to deformation and anti-broken
Bad ability has the performance of ultra-light ultra-strong；In addition, traditional porous material sandwich plate, uses simple metal panel more, passes through
Apply formal structure or filling damping material in sandwich layer, to carry out the vibration and noise reducing of some low-frequency ranges, and the present invention's is upper and lower
Panel is damped, uses Qtech413 damping-constraining panels, is not increasing architecture quality excessively and not influence structure original
It, still can be in wide-band (including low frequency and medium-high frequency) adaptive damping noise reduction on the premise of mechanical property.
Description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is the separate state diagram of ISOMAX foam sandwich constructions and upper and lower damping panel construction.
Fig. 3 is ISOMAX foam representative unit schematic diagrames.
In figure：1- foam cores；2- sheet metals；3-Qtech413 films
Specific embodiment
Below in conjunction with the accompanying drawings to the structure, principle and preparation method of invention, it is further detailed.
Fig. 1 is the overall structure diagram of ultralight high-strength adaptive damping noise reduction foam layer plate proposed by the present invention, it
Including Meta Materials ISOMAX foam cores 1 and Qtech413 damping-constrainings upper and lower panel (see Fig. 2).Metal ISOMAX in figure
Foam sandwich construction and damping-constraining above and below harden structure, merely illustrative, specific structure size, ISOMAX foam cell numbers
The thickness of amount is (see Fig. 3), sandwich uses metal material, the sheet metal 2 that upper and lower panel uses and Qtech413 films 3, can
Suitably to be chosen according to actual requirement of engineering.Wherein, ISOMAX is the title of sandwich foam, it is University of California sage fragrant plant pulling school
A kind of Meta Materials isotropism foaming structure that the scientific research personnel of material system proposes, is named as ISOMAX；Qtech413 is Qingdao
One of series macromolecular damping material that Polytechnics Huang Weibo professors seminar proposes, Qtech is " Qingdao science and engineering " four Chinese
The English abbreviation of word, 413 be the number of damping material, is put together, referred to as Qtech413.
The thickness of ISOMAX foam cores is remembered for d, and relative density is ρ/ρs(ρsFor the density of constituent material), then it forms
The long l of wall of the square wall panel structure of ISOMAX foaming structuresc=d/2.Form the sheet metal of Qtech413 damping-constraining panels
Thickness with Qtech413 films is respectively t/2 and tQ.Form the square wall panel structure of ISOMAX foaming structures and triangle gold
The wall thickness of word tower wall harden structure is respectively tcAnd tt。
Theory analysis shows the isotropic behavior of ISOMAX foaming structures, can be square by suitably choosing anisotropy
The thickness t of sidingcWith the thickness t of triangle pyramid sidingtTo determine.This is that ISOMAX foam layer harden structures are ultralight high-strength
Basis.The quality of ISOMAX foam layer plates and overall load-carrying properties, can by adjusting ISOMAX foam cores thickness d,
Relative density ρ/ρsIt is realized with the thickness t of sheet metal.And the adaptive damping performance of ISOMAX foam layer harden structures, it is main
It to be realized by Qtech413 damping-constrainings panel.Qtech413 is that Qingdao Technological University Huang Weibo professors seminar proposes
One of Qtech series macromolecular damping materials.It is acted synergistically by resin extender and energy consumption filler, by vibration noise mechanical energy
Thermal energy consumption is converted into, composition constrained damping structure is combined with restraining structure, there is the recombination loss in the range of 0.15-0.2
The factor, higher than rubber damping material and the complex loss factor of aqueous damping coating.Meanwhile Qtech413 has excellent attachment
Property, flexibility, water proofing property and shock resistance, to moisture, temperature-insensitive, thermal stability is good, temperature in use it is wide (- 45 DEG C-
150℃).It can be by adjusting the thickness of the flexible films of Qtech-413, to adapt to different substrate metal thin plates and different works
Condition.So ISOMAX foam layers harden structure can be used for different occasions, obtain different ultralight strength character and adaptive
Damping property, such as aerospace, the ships field different with high ferro.
The preparation method of the present invention mainly includes following steps：
(1) 3D printing ISOMAX foam sandwich constructions；
(2) by after Qtech413 uniform stirrings, by the thickness of requirement of engineering, single side is evenly coated on sheet metal, afterwards
By another identical sheet metal, boundary alignment is pasted onto on Qtech413 films.After compression, when placement 12 is small,
The thorough cooled and solidified of Qtech413 films is fabricated to Qtech413 damping-constraining upper and lower panels.
(3) by after JL-499 refractory metal Instant cement uniform stirrings, single side is evenly coated in Qtech413 damping-constrainings face
On plate, afterwards, as upper and lower panel, the ISOMAX foam cores with printing in step (1), boundary alignment is pasted together, i.e.,
Obtain required ultralight high-strength adaptive damping noise reduction Meta Materials ISOMAX foam layer plates.
The present invention is not limited to embodiments described above.The description of specific embodiment is intended to describe and be said above
Bright technical scheme, above-mentioned specific embodiment is only schematical, is not restricted.This is not being departed from
In the case of invention objective and scope of the claimed protection, those of ordinary skill in the art may be used also under the enlightenment of the present invention
The specific conversion of many forms is made, within these are all belonged to the scope of protection of the present invention.
Claims (2)
1. a kind of adaptive damping noise reduction foam layer plate, which is characterized in that including top panel, lower panel and positioned at interlayer
Foam core, the foam core is Meta Materials isotropism ISOMAX foaming structures, by anisotropic square wall panel structure
It is formed with triangle pyramid wall panel structure；The top panel and lower panel are Qtech413 damping-constraining panels, and by it is upper,
Lower two pieces of identical sheet metals damp gluing knot by Qtech413 macromolecules and form.
2. a kind of preparation method of adaptive damping noise reduction foam layer plate, which is characterized in that comprise the following steps：
(1) 3D printing ISOMAX foam sandwich constructions；
(2) by after Qtech413 uniform stirrings, it is evenly coated on a sheet metal, afterwards by another identical metal foil
Plate, boundary alignment are pasted on Qtech413 films, after compression, when placement 12 is small, treat that the cooling completely of Qtech413 films is solidifying
Gu it is fabricated to Qtech413 damping-constraining panels；
(3) by after JL-499 refractory metal Instant cement uniform stirrings, single side is evenly coated in damping-constraining panel and lower constraint
It damps on panel, the ISOMAX foam cores with printing in step (1), boundary alignment bonding is to get to required adaptive damping
Noise reduction foam layer plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463160.XA CN108058454A (en) | 2017-12-28 | 2017-12-28 | A kind of adaptive damping noise reduction foam layer plate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463160.XA CN108058454A (en) | 2017-12-28 | 2017-12-28 | A kind of adaptive damping noise reduction foam layer plate and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108058454A true CN108058454A (en) | 2018-05-22 |
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| CN201711463160.XA Pending CN108058454A (en) | 2017-12-28 | 2017-12-28 | A kind of adaptive damping noise reduction foam layer plate and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742277A (en) * | 2018-12-14 | 2019-05-10 | 华侨大学 | A kind of reinforced high efficient protected battery case |
| CN110001170A (en) * | 2019-04-02 | 2019-07-12 | 中国兵器工业第五九研究所 | A kind of flexible foam filled honeycomb damping-constraining sandwich and preparation method thereof |
| CN112623109A (en) * | 2020-12-14 | 2021-04-09 | 中国海洋大学 | Vibration-damping sandwich beam and vibration-damping deck frame |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1312201A (en) * | 1960-12-29 | 1962-12-14 | Minnesota Mining & Mfg | Vibration damping coating |
| AU4550397A (en) * | 1997-10-09 | 1999-05-03 | Strangaard, Christian | Method of manufacturing a sandwich board and a board and structure manufactured by the method |
| CN101618611A (en) * | 2009-07-31 | 2010-01-06 | 北京市射线应用研究中心 | Urethane foam composite board and preparation method thereof |
| CN102909900A (en) * | 2012-10-26 | 2013-02-06 | 西安交通大学 | Epoxy resin-based damping material-filled corrugated structure sandwich plate and preparation method thereof |
| CN104175623A (en) * | 2014-08-19 | 2014-12-03 | 西安交通大学 | Foamed aluminum-corrugated plate composite sandwich plate and preparation method thereof |
| CN104589731A (en) * | 2015-01-09 | 2015-05-06 | 哈尔滨理工大学 | Rectangular pyramid resin-based dot matrix sandwich foamed composite panel and manufacturing method thereof |
| CN205219982U (en) * | 2015-12-11 | 2016-05-11 | 成都玉龙化工有限公司 | Melamine foam core composite sheet |
| CN106313761A (en) * | 2016-08-12 | 2017-01-11 | 上海卫星工程研究所 | Nano modified vibration damping honeycomb sandwich plate |
| CN106739273A (en) * | 2016-12-19 | 2017-05-31 | 华中科技大学 | A kind of foamed material half fills ripple hybridization sandwich plate and preparation method thereof |
| CN107379646A (en) * | 2017-07-17 | 2017-11-24 | 西安交通大学 | A kind of porous material perforation ripple composite light multifunction clips laminate and preparation method |
-
2017
- 2017-12-28 CN CN201711463160.XA patent/CN108058454A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1312201A (en) * | 1960-12-29 | 1962-12-14 | Minnesota Mining & Mfg | Vibration damping coating |
| AU4550397A (en) * | 1997-10-09 | 1999-05-03 | Strangaard, Christian | Method of manufacturing a sandwich board and a board and structure manufactured by the method |
| CN101618611A (en) * | 2009-07-31 | 2010-01-06 | 北京市射线应用研究中心 | Urethane foam composite board and preparation method thereof |
| CN102909900A (en) * | 2012-10-26 | 2013-02-06 | 西安交通大学 | Epoxy resin-based damping material-filled corrugated structure sandwich plate and preparation method thereof |
| CN104175623A (en) * | 2014-08-19 | 2014-12-03 | 西安交通大学 | Foamed aluminum-corrugated plate composite sandwich plate and preparation method thereof |
| CN104589731A (en) * | 2015-01-09 | 2015-05-06 | 哈尔滨理工大学 | Rectangular pyramid resin-based dot matrix sandwich foamed composite panel and manufacturing method thereof |
| CN205219982U (en) * | 2015-12-11 | 2016-05-11 | 成都玉龙化工有限公司 | Melamine foam core composite sheet |
| CN106313761A (en) * | 2016-08-12 | 2017-01-11 | 上海卫星工程研究所 | Nano modified vibration damping honeycomb sandwich plate |
| CN106739273A (en) * | 2016-12-19 | 2017-05-31 | 华中科技大学 | A kind of foamed material half fills ripple hybridization sandwich plate and preparation method thereof |
| CN107379646A (en) * | 2017-07-17 | 2017-11-24 | 西安交通大学 | A kind of porous material perforation ripple composite light multifunction clips laminate and preparation method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742277A (en) * | 2018-12-14 | 2019-05-10 | 华侨大学 | A kind of reinforced high efficient protected battery case |
| CN109742277B (en) * | 2018-12-14 | 2022-03-04 | 华侨大学 | Reinforced efficient protection battery box |
| CN110001170A (en) * | 2019-04-02 | 2019-07-12 | 中国兵器工业第五九研究所 | A kind of flexible foam filled honeycomb damping-constraining sandwich and preparation method thereof |
| CN112623109A (en) * | 2020-12-14 | 2021-04-09 | 中国海洋大学 | Vibration-damping sandwich beam and vibration-damping deck frame |
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