CN104141720B - A kind of square grid plate with isolation characteristics - Google Patents
A kind of square grid plate with isolation characteristics Download PDFInfo
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- CN104141720B CN104141720B CN201410366127.5A CN201410366127A CN104141720B CN 104141720 B CN104141720 B CN 104141720B CN 201410366127 A CN201410366127 A CN 201410366127A CN 104141720 B CN104141720 B CN 104141720B
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- phonon crystal
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- vibration isolation
- local oscillator
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- 238000002955 isolation Methods 0.000 title claims abstract description 47
- 239000013078 crystal Substances 0.000 claims abstract description 42
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 7
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 10
- 210000003850 cellular structure Anatomy 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
A kind of square grid plate with isolation characteristics, it relates to a kind of Turbogrid plates with isolation characteristics, to solve the problem that current cellular structure Turbogrid plates do not have vibration isolation, sound insulation property, it comprises covering, locally resonant type phonon crystal vibration isolation assembly and lower covering, upper covering is arranged in the top of lower covering, the locally resonant type phonon crystal vibration isolation assembly gluedd joint with the two is furnished with between upper covering and lower covering, described locally resonant type phonon crystal vibration isolation assembly is by transversely forming with longitudinal cycle equally distributed multiple locally resonant type phonon crystal unit, adjacent locally resonant type phonon crystal unit glueds joint, each locally resonant type phonon crystal unit is the regular prism structure that each side has local oscillator, local oscillator is the ring structure that inside and outside double-deck splicing is integrated, local oscillator is glued on locally resonant type vibration isolation phonon crystal regular prism framework matrix.The present invention is used for vibration isolation sound insulation.
Description
Technical field
The present invention relates to a kind of vibration isolation plate with isolation characteristics, belong to vibration insulation and noise reduction technical field.
Background technique
Various vibration problem is all there is in mechanical industry and other industrial departments, isolating technique (abbreviation vibration isolation) is a most widely used damping technology in vibration control, its essence is an additional subtense angle (vibration isolator) between vibration source and system, from the viewpoint of energy, vibration isolation changes vibration source to the energy frequency spectrum structure of system incentive, suppresses vibration with the energy being reduced by frequency.A key character of phonon crystal is its acoustic band gap, the functional material with periodic structure and elastic wave band gaps characteristic be namely made up of two or more Elastic medium at phonon crystal or structure.When elastic wave is propagated in phonon crystal, by the effect of its intercycle structure, form special band gap.The elastic wave propagation of bandgap frequency scope is suppressed, and therefore phonon crystal has broad application prospects in vibration isolation field.
But the cellular structure Turbogrid plates used at present do not have vibration isolation, sound insulation property, can not realize the function of vibration insulation and noise reduction.
Summary of the invention
The present invention is the problem for solving current cellular structure Turbogrid plates without vibration isolation, sound insulation property, and then provides a kind of square grid plate with isolation characteristics.
The present invention solves the problems of the technologies described above the technological scheme taked to be: a kind of square grid plate with isolation characteristics of the present invention comprises covering, locally resonant type phonon crystal vibration isolation assembly and lower covering;
Upper covering is arranged in the top of lower covering, the locally resonant type phonon crystal vibration isolation assembly gluedd joint with the two is furnished with between upper covering and lower covering, described locally resonant type phonon crystal vibration isolation assembly is by transversely forming with longitudinal cycle equally distributed multiple locally resonant type phonon crystal unit, adjacent locally resonant type phonon crystal unit glueds joint, each locally resonant type phonon crystal unit is the regular prism structure that each side has local oscillator, local oscillator is the ring structure that inside and outside double-deck splicing is integrated, local oscillator is glued on locally resonant type vibration isolation phonon crystal unit regular prism framework matrix.
The invention has the beneficial effects as follows: one, the present invention proposes a kind of square grid plate with vibration isolation, sound insulation property be made up of locally resonant type phonon crystal, achieve the light-weight design of phonon crystal vibration damping structure, weight saving 60%-80%.Two, the present invention can realize the isolation to the vibration on square grid plate four direction and the vibration perpendicular to upper covering or lower covering direction, multidirectional vibration isolation, sound insulation can be realized, the sound insulation device manufacture in the various platform structures such as various precision type instrument support platform, vibration-isolating platform and building materials of house fitting-up field can be widely used in.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention, and Fig. 2 is the detonation configuration schematic diagram of Fig. 1, and Fig. 3 is the perspective view of locally resonant type phonon crystal unit of the present invention.
Embodiment
Embodiment one: composition graphs 1-Fig. 3 illustrates, a kind of square grid plate with isolation characteristics of present embodiment comprises covering 1, locally resonant type phonon crystal vibration isolation assembly 2 and lower covering 4;
Upper covering 1 is arranged in the top of lower covering 4, the locally resonant type phonon crystal vibration isolation assembly 2 gluedd joint with the two is furnished with between upper covering 1 and lower covering 4, described locally resonant type phonon crystal vibration isolation assembly 2 is by transversely forming with longitudinal cycle equally distributed multiple locally resonant type phonon crystal unit 3, adjacent locally resonant type phonon crystal unit 3 glueds joint, each locally resonant type phonon crystal unit 3 has the regular prism structure of local oscillator 3-1 for each side, local oscillator 3-1 is the ring structure that inside and outside double-deck splicing is integrated, local oscillator 3-1 is glued on locally resonant type vibration isolation phonon crystal unit regular prism framework matrix 3-2.
Embodiment two: the local oscillator 3-1 of present embodiment is that inside and outside bilayer glueds joint the regular polygon or circular annular form structure that are integrated.Setting like this, structure is simple, reasonable in design, meets actual demand.Other is identical with embodiment one.
Embodiment three: the locally resonant type vibration isolation phonon crystal unit regular prism framework matrix 3-2 of present embodiment is square body, positive pentagonal prism or positive six prism framework matrixes.Setting like this, structure is simple, meets actual demand.Other is identical with embodiment one or two.
Embodiment four: composition graphs 3 illustrates, the endothecium structure 3-1-2 of the local oscillator 3-1 of present embodiment is plumbous or Steel material.Other is identical with embodiment three.
Embodiment five: composition graphs 3 illustrates, the layer structure 3-1-1 of the local oscillator 3-1 of present embodiment is nitrile rubber material.Setting like this, it is higher that nitrile rubber has wear resistance, and heat resistance is better, and the feature that bonding force is strong, meets the design requirements and the actual needs.Other with embodiment one, two or four identical.
Embodiment six: composition graphs 3 illustrates, the locally resonant type vibration isolation phonon crystal unit regular prism framework matrix 3-2 of present embodiment is made up of aluminium or epoxy resin.Setting like this, aluminium material light weight, cheap and easy to get; Epoxy resin has good physics, chemical property, and it has excellent bonding strength to the surface of metal and nonmetallic material, meets actual demand.Other is identical with embodiment five.
Working procedure: the present invention can realize the vibration on square grid plate four direction and the vibration perpendicular to covering direction, inputted by upper covering 1, owing to there being the band gap effect of the locally resonant type phonon crystal of pretightening force, this vibration excitation is decayed in certain frequency band range phonon crystal vibration band gaps, by lower covering 4, this vibration is spread out of after eventually passing through the vibration attenuation of locally resonant type phonon crystal vibration isolation assembly 2, thus result in the generation of band gap, thus realize the function of multi-direction vibration isolation sound insulation.
Claims (6)
1. there is a square grid plate for isolation characteristics, it is characterized in that: described Turbogrid plates comprise covering (1), locally resonant type phonon crystal vibration isolation assembly (2) and lower covering (4);
Upper covering (1) is arranged in the top of lower covering (4), locally resonant type phonon crystal vibration isolation assembly (2) gluedd joint with the two is furnished with between upper covering (1) and lower covering (4), described locally resonant type phonon crystal vibration isolation assembly (2) is by transversely forming with longitudinal cycle equally distributed multiple locally resonant type phonon crystal unit (3), adjacent locally resonant type phonon crystal unit (3) glueds joint, each locally resonant type phonon crystal unit (3) has the regular prism structure of local oscillator (3-1) for each side, the ring structure that local oscillator (3-1) is integrated for inside and outside bilayer splicing, local oscillator (3-1) is glued in locally resonant type vibration isolation phonon crystal unit regular prism framework matrix (3-2).
2. a kind of square grid plate with isolation characteristics according to claim 1, is characterized in that: local oscillator (3-1) glueds joint the regular polygon that is integrated or circular annular form structure for inside and outside bilayer.
3. a kind of square grid plate with isolation characteristics according to claim 1 and 2, is characterized in that: locally resonant type vibration isolation phonon crystal unit regular prism framework matrix (3-2) is square body, positive pentagonal prism or positive six prism framework matrixes.
4. a kind of square grid plate with isolation characteristics according to claim 3, is characterized in that: the endothecium structure (3-1-2) of local oscillator (3-1) is plumbous or Steel material.
5. a kind of square grid plate with isolation characteristics according to claim 1,2 or 4, is characterized in that: the layer structure (3-1-1) of local oscillator (3-1) is nitrile rubber material.
6. a kind of square grid plate with isolation characteristics according to claim 5, is characterized in that: locally resonant type vibration isolation phonon crystal unit regular prism framework matrix (3-2) is made up of aluminium or epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366127.5A CN104141720B (en) | 2014-07-29 | 2014-07-29 | A kind of square grid plate with isolation characteristics |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366127.5A CN104141720B (en) | 2014-07-29 | 2014-07-29 | A kind of square grid plate with isolation characteristics |
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| Publication Number | Publication Date |
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| CN104141720A CN104141720A (en) | 2014-11-12 |
| CN104141720B true CN104141720B (en) | 2016-03-02 |
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| CN201410366127.5A Expired - Fee Related CN104141720B (en) | 2014-07-29 | 2014-07-29 | A kind of square grid plate with isolation characteristics |
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| CN107045868B (en) * | 2017-01-09 | 2020-03-06 | 温州大学 | Local resonance type phononic crystal periodic coating structure |
| CN108374858B (en) * | 2018-01-26 | 2020-07-28 | 西安交通大学 | Elementary substance phonon crystal vibration isolator with adjustable band gap based on stress rigidization effect |
| CN108597488B (en) * | 2018-03-15 | 2021-12-21 | 华东交通大学 | High-speed train floor |
| CN108691938B (en) * | 2018-04-24 | 2019-07-23 | 清华大学 | It is a kind of for the oscillation damping method of low-frequency elastic wave, system and vibration absorber |
| CN109533269A (en) * | 2018-11-26 | 2019-03-29 | 中国人民解放军国防科技大学 | Low-frequency vibration-damping noise-reducing sound-insulating wall plate structure for aircraft cabin |
| CN110030306B (en) * | 2019-03-25 | 2020-06-12 | 中国科学院长春光学精密机械与物理研究所 | Vibration isolation supporting structure and vibration isolator |
| CN110439949A (en) * | 2019-09-03 | 2019-11-12 | 东南大学 | A kind of periodic structure with nonlinear energy trap |
| CN111028820A (en) * | 2019-11-14 | 2020-04-17 | 南京航空航天大学 | Multilayer structure trompil formula phononic crystal board |
| CN111179894A (en) * | 2019-12-11 | 2020-05-19 | 南京光声超构材料研究院有限公司 | Adjustable wide-band-gap auxetic phonon crystal for medium-high frequency vibration reduction |
| CN110984436B (en) * | 2019-12-20 | 2022-05-24 | 江西奇信集团股份有限公司 | Partition board and preparation and installation method of building partition wall thereof |
| CN111674541B (en) * | 2020-05-25 | 2023-04-18 | 哈尔滨工业大学 | Flexible composite skin, manufacturing method thereof and tool structure |
| CN112499437B (en) * | 2020-11-16 | 2022-03-22 | 江苏大学 | Local resonance phononic crystal periodic structure and elevator vibration and noise reduction device |
| CN112874066B (en) * | 2021-01-08 | 2022-09-27 | 哈尔滨工程大学 | Honeycomb structure plate integrating vibration suppression and light weight and high strength and preparation method thereof |
| CN113531022A (en) * | 2021-07-26 | 2021-10-22 | 天津大学 | Active control local resonance metamaterial device for low-frequency vibration isolation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8094023B1 (en) * | 2008-03-10 | 2012-01-10 | Sandia Corporation | Phononic crystal devices |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8094023B1 (en) * | 2008-03-10 | 2012-01-10 | Sandia Corporation | Phononic crystal devices |
Non-Patent Citations (4)
| Title |
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| 三组元周期复合结构的振动带隙分布规律研究;刘朔甲;《中国硕士学位论文库》;20121231;1-71 * |
| 周期局域共振蜂窝板的弯曲振动特性研究;黄丽娟等;《振动与冲击》;20121228;第31卷(第24期);118-110、160 * |
| 正方形金属蜂窝吸能特性理论与仿真研究;刘荣强等;《中国宇航学会深空探测技术专业委员会第九届学术年会论文集（下册） 》;20121017;1289-1293 * |
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