CN106130403A - A kind of composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system - Google Patents
A kind of composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system Download PDFInfo
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- CN106130403A CN106130403A CN201610541802.2A CN201610541802A CN106130403A CN 106130403 A CN106130403 A CN 106130403A CN 201610541802 A CN201610541802 A CN 201610541802A CN 106130403 A CN106130403 A CN 106130403A
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- vibration energy
- line defect
- phonon crystal
- frequency division
- energy regeneration
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- 230000007547 defect Effects 0.000 title claims abstract description 68
- 239000013078 crystal Substances 0.000 title claims abstract description 59
- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 230000008929 regeneration Effects 0.000 title claims abstract description 24
- 238000011069 regeneration method Methods 0.000 title claims abstract description 24
- 239000004744 fabric Substances 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 230000000737 periodic effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 8
- 239000013047 polymeric layer Substances 0.000 claims description 7
- 229920000260 silastic Polymers 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 230000009466 transformation Effects 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 5
- 239000004945 silicone rubber Substances 0.000 description 5
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000004038 photonic crystal Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 239000002305 electric material Substances 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The present invention relates to a kind of composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system, described wide frequency division cloth vibration energy regeneration system includes composite line defect phonon crystal, described composite line defect phonon crystal is embedded in matrix by scattering object and periodic array is arranged and obtained in the base, wherein a line scattering object is the composite material line defect sturcture that defect scattering external coated polymer layer is formed, and remaining scattering object is lead block scattering object.Present invention obtains and can realize the recovery of wideband distributed energy, recover energy the energy-recuperation system big, transformation efficiency is high, can be used for realizing the distributed vibration energy regeneration of broad band low frequency of naval ship structure, provide self-powered energy for warship system state monitoring wireless sensor and MEMS system.
Description
Technical field
The invention belongs to vibration energy regeneration system regions, be specifically related to one and utilize composite line defect phonon crystal
Reclaim the collection of energy converting system of wide frequency division cloth vibrational energy.
Background technology
In order to realize recycling of the energy, vibration energy regeneration has become the hot issue of research at present.Vibrational energy
Reclaim and refer to be converted to the vibrational energy in environment by energy recycle device the process of available electric energy.Conventional vibration
Energy recycle device is broadly divided into electrostatic, electromagnetic type and piezoelectric type three kinds, wherein piezoelectric type vibration energy recycle device master
The piezoelectric effect of piezoelectric to be utilized, is converted into electric energy by extraneous vibration energy, and simple in construction is readily integrated into system
Among, it is the emphasis of research at present.Existing piezoelectric type energy retracting device is mainly used in the centralized vibrational energy in environment
Amount reclaims, and the efficiency of vibration energy regeneration is affected very big by the paste position of piezoelectric, is only pasted by piezoelectric
At the maximum strain of structural vibration, the quantity of electric charge of maximum could be produced.But the vibration that is widely present in natural environment is general
Not concentrating on a certain position, and be in distributions, cause recovering energy less, transformation efficiency is low.
Phonon crystal, as a kind of new function structural material, not only has the phononic band gap characteristic of uniqueness, and works as
In the periodic structure of phonon crystal during existing defects, the elastic wave in the range of bandgap frequency will by local at fault location, or along lack
Fall into and propagate, there is defect state characteristic.The defect state characteristic of phonon crystal has elastic wave regulating and controlling effect, it is possible to shake distributed
Energy concentrates on fault location.When some scattering object in phonon crystal introduces the fault in material with piezoelectric effect,
Likely the vibrational energy in the range of bandgap frequency is carried out centralized recovery.Acoustic energy is carried out currently with phonon crystal point defect
Reclaim mainly for defect state frequency, i.e. single-frequency energy regenerating, in forbidden band, other frequency energy are all reflected, and therefore recover energy
Few, transformation efficiency is the most not ideal enough.
Summary of the invention
The technical problem to be solved is for above-mentioned deficiency present in prior art, it is provided that a kind of composite wood
Stockline defect phonon crystal wide frequency division cloth vibration energy regeneration system, it is possible to achieve the recovery of wideband distributed energy, reclaims
Energy is big, and transformation efficiency is high, has important engineer applied and is worth.
For solving above-mentioned technical problem, present invention provide the technical scheme that
Thering is provided a kind of composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system, described wideband is distributed
Formula vibration energy regeneration system includes composite line defect phonon crystal, and described composite line defect phonon crystal is by scattering
Body embeds in matrix and periodic array is arranged and obtained in the base, and wherein a line scattering object is the external coated polymer of defect scattering
The composite material line defect sturcture that layer is formed, remaining scattering object is lead block scattering object.
By such scheme, the form crystal lattice of described two-dimentional two constituent element phonon crystals is square, lead block scattering object and defect
Scattering object shape of cross section is circular.
By such scheme, lattice paprmeter a=10 of described two-dimentional two constituent element phonon crystals～50mm, lead block radius r0=
0.35a, defect scattering body radius is r=0.05a～0.35a, polymeric layer radius R=0.35a～0.45a.
By such scheme, described matrix is silastic material；Described defect scattering body is aluminum post；Described polymeric layer is silicon
Elastomeric material.
By such scheme, described wide frequency division cloth vibration energy regeneration system also includes that piezoelectric patches, described piezoelectric patches are inlayed
In polymeric layer.
By such scheme, the recovery frequency range of vibration energy recovery device is 0～1000Hz.
The wide frequency division cloth vibration energy regeneration system prepared based on line defect phonon crystal composite of the present invention
A certain quadrat post mainly, on the premise of ensureing two dimension silicone rubber-lead block tetragonal dot matrix phonon crystal integrity, is dissipated by system
Beam replaces with the aluminum core material being made up of rubber coated aluminum post, thus is formed in phonon crystal and have the line of piezoelectric effect and lack
Fall into, and wedge pressure electric material in line defect phonon crystal composite.When preferable phonon crystal introduces rubber coated aluminum post
During the aluminum core material line defect constituted, occur in that in the frequency range of forbidden band that several defects intercoupled can carry, go out in making forbidden band
Existing guided wave frequency, the elastic wave in guided wave frequency range can be propagated along line defect in phonon crystal, be embedded in line defect
Piezoelectric in phonon crystal composite is capable of the centralized recovery of wide frequency division cloth vibrational energy.
The beneficial effects of the present invention is: prior art utilizes phonon crystal point defect carry out acoustic energy and reclaim main profit
Carry out acoustic energy recovery by phonon crystal point defect, and generally remove scattering object than the method for more typical acquisition defect state
Or changing scattering object structural parameters, the effect reached is unsatisfactory, and energy recovery rate is low, and design lines defect sound of the present invention
Sub-crystal energy recovery system, the problem solving point defect phonon crystal narrow frequency energy regenerating, and use rubber coated aluminum post
The aluminum core material constituted is replaced lead block and is formed defect, it is thus achieved that can realize wideband distributed energy recovery, recover energy big,
The energy-recuperation system that transformation efficiency is high, can be used for realizing the distributed vibration energy regeneration of broad band low frequency of naval ship structure, for warship
Ship system state monitoring wireless senser and MEMS system provide self-powered energy.
Accompanying drawing explanation
Fig. 1 is the composite line defect photonic crystal structure schematic diagram prepared by the embodiment of the present invention 1；
Fig. 2 (a) is preferable two-dimentional two constituent element phonon crystal primitive unit cell models, and Fig. 2 (b) is preferable two-dimentional two constituent element phonon crystals
5 × 5 surpassing primitive unit cell model, Fig. 2 (c) is composite line defect phonon crystal 5 × 5 surpass primitive unit cell model；
Fig. 3 is the band structure figure of three kinds of structures described in Fig. 2, and wherein Fig. 3 (a) is that preferable two-dimentional two constituent element phonon crystals are former
The band structure figure of born of the same parents, Fig. 3 (b) is the band structure figure of preferable two-dimentional two constituent element phonon crystals 5 × 5 surpass primitive unit cell model, Fig. 3
C () is the band structure figure of composite line defect phonon crystal 5 × 5 surpass primitive unit cell model；
Fig. 4 is the defect state intrinsic displacement field of the composite line defect phonon crystal prepared by embodiment 1.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawings the present invention is made into
One step describes in detail.
Embodiment 1
The wide frequency division cloth vibration energy regeneration system obtained based on line defect phonon crystal composite of the present invention
In system, preferable phonon crystal is distributed in silicone rubber matrix A by tetragonal periodic lattice by lead block B and is formed, line defect material
Material is the aluminum core material being made up of silicone rubber D cladding aluminum post C, and wedge pressure electric material in silicone rubber D is used for realizing vibrational energy
Reclaim.Preferable phonon crystal primitive unit cell lattice paprmeter is a, and lead block scattering object radius is r；Aluminum post half in line defect material cell structure
Footpath is r, and silicone rubber D radius is R.Fig. 1 and Fig. 2 (c) is line defect phonon crystal composite structure schematic diagram (structural parameters: a
=10mm；R=3.5mm；R=4.5mm).
Material therefor parameter: silicone rubber matrix materials A (density 1300Kg/m3；Elastic modelling quantity 1.175 × 105Pa；Poisson's ratio
0.469)；Lead block diffuser material B (density 11600Kg/m3；Elastic modelling quantity 4.08 × 1010Pa；Poisson's ratio 0.3691)；Line lacks
Fall into material silicon elastomeric material D (density 1300Kg/m3；Elastic modelling quantity 1.175 × 105Pa；Poisson's ratio 0.469)；Line defect materials of aluminum
Post C (density 2730Kg/m3；Elastic modelling quantity 6.69 × 1010Pa；Poisson's ratio 0.35).
Fig. 2 (a) is preferable phonon crystal primitive unit cell model, and Fig. 2 (b) is preferable phonon crystal 5 × 5 surpass primitive unit cell model, according to
The structure of Fig. 2 and selected material and structural parameters, obtained three kinds of corresponding band structures of structure as shown in Figure 3.Can by figure
Knowing, there is a complete forbidden band in preferable photonic crystal structure in 0-900Hz frequency range, forbidden band is between 434-736Hz；
The band structure figure of super primitive cell structure coincide preferably with the band structure figure of primitive cell structure；When in preferable phonon crystal, lead-in lacks
When falling into material, occurring in that several defects can carry in the frequency range of forbidden band, the coupling between defect can carry causes energy gap
Narrow and the formation of waveguide.In order to the vibrational energy localization of clear and intuitive explanation line defect phonon crystal composite is special
Property, we calculate the intrinsic displacement field of line defect state composite as shown in Figure 4 by finite element algorithm, wherein Fig. 4 (a) with
(b) be respectively two typical defects in line defect phonon crystal composite band structure figure can carry corresponding to defect state.
It is found that when lead-in defective material in preferable phonon crystal, phonon crystal line of material defect state is corresponding from figure
Displacement field all concentrates on line of material fault location, and the introducing of line of material defect causes the elastic wave of characteristic frequency to pass along line defect
Broadcasting, can form elastic wave guide in the range of preferable phonon crystal forbidden band, the distributed vibrational energy of corresponding band lacks along line
Fall into and propagate.There is the composite line defect photonic crystal structure elastic wave vibrational energy measurer for guided wave frequency of piezoelectric effect
There is centralized recovery characteristic, make the energy of localization be converted into electric energy, it is achieved wide frequency division cloth vibration energy regeneration.
Claims (6)
1. a composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system, it is characterised in that described width
Frequency division cloth vibration energy regeneration system includes composite line defect phonon crystal, described composite line defect phonon crystal
Being embedded in matrix by scattering object and periodic array is arranged and obtained in the base, wherein a line scattering object is the external cladding of defect scattering
The composite material line defect sturcture that polymeric layer is formed, remaining scattering object is lead block scattering object.
Composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system the most according to claim 1, its
Being characterised by, the form crystal lattice of described two-dimentional two constituent element phonon crystals is square, and lead block scattering object and defect scattering body are transversal
Face is generally circular in shape.
Composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system the most according to claim 2, its
It is characterised by, lattice paprmeter a=10 of described two-dimentional two constituent element phonon crystals～50mm, lead block radius r0=0.35a, defect dissipates
Beam radius is r=0.05a～0.35a, polymeric layer radius R=0.35a～0.45a.
Composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system the most according to claim 1, its
Being characterised by, described matrix is silastic material；Described defect scattering body is aluminum post；Described polymeric layer is silastic material.
Composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system the most according to claim 1, its
Being characterised by, described wide frequency division cloth vibration energy regeneration system also includes that piezoelectric patches, described piezoelectric patches are embedded in polymeric layer
In.
Composite line defect phonon crystal wide frequency division cloth vibration energy regeneration system the most according to claim 1, its
Being characterised by, the recovery frequency range of vibration energy recovery device is 0～1000Hz.
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| CN201610541802.2A CN106130403B (en) | 2016-07-11 | 2016-07-11 | A kind of composite line defect phonon crystal wideband distribution vibration energy regeneration system |
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| CN201610541802.2A CN106130403B (en) | 2016-07-11 | 2016-07-11 | A kind of composite line defect phonon crystal wideband distribution vibration energy regeneration system |
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| CN106130403A true CN106130403A (en) | 2016-11-16 |
| CN106130403B CN106130403B (en) | 2018-01-12 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106844884A (en) * | 2016-12-29 | 2017-06-13 | 中国舰船研究设计中心 | A kind of photonic crystal structure and method for designing for naval vessel vibration isolation |
| CN107045868A (en) * | 2017-01-09 | 2017-08-15 | 温州大学 | A kind of locally resonant type phonon crystal cycle coating structure |
| CN107091686A (en) * | 2017-05-09 | 2017-08-25 | 国网江西省电力公司电力科学研究院 | A kind of acoustic resonator of use multi-layer-coupled phonon crystal |
| CN109742974A (en) * | 2019-01-24 | 2019-05-10 | 华东交通大学 | A kind of piezoelectric type phonon crystal absorbing electricity acquisition device |
| CN110486400A (en) * | 2018-05-15 | 2019-11-22 | 中国船舶重工集团公司第七一一研究所 | Band gap wave arrestment subtracts vibration isolation element |
| CN113699907A (en) * | 2021-09-22 | 2021-11-26 | 同济大学 | Two-dimensional phonon crystal type sound barrier with energy supply |
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| US20090295505A1 (en) * | 2008-04-30 | 2009-12-03 | Georgia Tech Research Corporation | Phononic crystal wave structures |
| CN103198824A (en) * | 2013-03-14 | 2013-07-10 | 广东工业大学 | Sound energy capturing system based on photonic crystal defect |
| CN105391343A (en) * | 2015-10-15 | 2016-03-09 | 上海工程技术大学 | Acoustic energy recycling device |
-
2016
- 2016-07-11 CN CN201610541802.2A patent/CN106130403B/en not_active Expired - Fee Related
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| US20090295505A1 (en) * | 2008-04-30 | 2009-12-03 | Georgia Tech Research Corporation | Phononic crystal wave structures |
| CN103198824A (en) * | 2013-03-14 | 2013-07-10 | 广东工业大学 | Sound energy capturing system based on photonic crystal defect |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106844884A (en) * | 2016-12-29 | 2017-06-13 | 中国舰船研究设计中心 | A kind of photonic crystal structure and method for designing for naval vessel vibration isolation |
| CN107045868A (en) * | 2017-01-09 | 2017-08-15 | 温州大学 | A kind of locally resonant type phonon crystal cycle coating structure |
| CN107045868B (en) * | 2017-01-09 | 2020-03-06 | 温州大学 | Local resonance type phononic crystal periodic coating structure |
| CN107091686A (en) * | 2017-05-09 | 2017-08-25 | 国网江西省电力公司电力科学研究院 | A kind of acoustic resonator of use multi-layer-coupled phonon crystal |
| CN110486400A (en) * | 2018-05-15 | 2019-11-22 | 中国船舶重工集团公司第七一一研究所 | Band gap wave arrestment subtracts vibration isolation element |
| CN109742974A (en) * | 2019-01-24 | 2019-05-10 | 华东交通大学 | A kind of piezoelectric type phonon crystal absorbing electricity acquisition device |
| CN113699907A (en) * | 2021-09-22 | 2021-11-26 | 同济大学 | Two-dimensional phonon crystal type sound barrier with energy supply |
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