CN110449334A - A kind of periodic structure with linear vibration electric motor - Google Patents
A kind of periodic structure with linear vibration electric motor Download PDFInfo
- Publication number
- CN110449334A CN110449334A CN201910826990.7A CN201910826990A CN110449334A CN 110449334 A CN110449334 A CN 110449334A CN 201910826990 A CN201910826990 A CN 201910826990A CN 110449334 A CN110449334 A CN 110449334A
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- linear
- periodic structure
- electric motor
- linear vibration
- soft material
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- 230000000737 periodic effect Effects 0.000 title claims abstract description 41
- 239000007779 soft material Substances 0.000 claims abstract description 30
- 239000011159 matrix material Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 16
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 230000003252 repetitive effect Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 6
- 230000003993 interaction Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000004038 photonic crystal Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
Abstract
The present invention relates to a kind of periodic structures with linear vibration electric motor, including plate matrix, are embedded in the linear vibration electric motor that m row n is arranged in described matrix according to periodicity or relaxed periodicity arrangement, and be wrapped in one layer of soft material on the outside of linear vibration electric motor；When by the way of male-type, one scatterer oscillator is stacked by soft material and linear vibration electric motor, such scatterer oscillator is arranged according to periodicity or relaxed periodicity protrusion setting m row n on plate matrix, wherein linear vibration electric motor is made of stator, rotor and sliding rail etc..Periodic structure has band gap properties, and wherein the generation of locally resonant band gap depends on the interaction of long wave traveling wave in scatterer itself resonance characteristics and matrix.Therefore the vibration frequency for passing through linear adjustment motor, may be implemented the active control to periodic structure bandgap range.It is with a wide range of applications in engineering vibration isolation field.To waveguide, the fields such as acoustic wave filter have important value.
Description
Technical field
The present invention relates to a kind of periodic structures, more particularly to a kind of periodic structure with linear vibration electric motor.Belong to
The technical field of vibration proofing material manufacture.
Background technique
The concept of periodic structure, also known as phonon crystal, phonon crystal is derived by photonic crystal, in phonon crystal,
The elastic constant material periodicities different with density arrange, and the material being connected between each other is known as matrix, disconnected material
Material is known as scatterer.Vibration is usually to be propagated in periodic structure in the form of elastic wave, and elastic wave band gaps can be described as vibrating again
Band gap.The elastic wave band gaps of periodic structure can be used for vibration damping, on the one hand can provide certain frequency model for high-precision system of processing
Interior processing environment without friction is enclosed, guarantees higher requirement on machining accuracy；It on the other hand can be special precision instrument or equipment
Chatter-free operation environment within the scope of certain frequency is provided, operating accuracy and reliability is improved, prolongs its service life simultaneously.
The proportionate relationship of the wavelength according to corresponding to bandgap frequency and lattice constant, band gap can be divided into Bragg scatter-type
(wavelength corresponding to bandgap frequency and lattice constant are in same magnitude) and local resonance type (wavelength corresponding to bandgap frequency
Much larger than lattice constant).Locally resonant mechanism thinks, under the elastic wave excitation of specific frequency, each scatterer generates resonance,
And interact with elastic wave long wave traveling wave, to inhibit its propagation.Since the generation of locally resonant band gap depends on scatterer
The interaction of long wave traveling wave in itself resonance characteristics and matrix, therefore, bandgap frequency and the intrinsic vibration of single scatterer
Characteristic is closely related.
Linear electric machine be it is a kind of electric energy is directly changed into linear motion mechanical energy, without any intermediate conversion mechanism
Transmission device.It can regard a rotating electric machine as and split by radial, and transforms into plane and form.Linear electric machine is also referred to as straight line
Motor, linear motor, line motor, pusher motor.Most common linear motor type is flat and U-type groove formula and tubular type.
The typical composition of coil is three-phase, realizes brushless commutation by Hall element.The working principle of linear electric machine are as follows: when armature winding is logical
When entering AC power source, travelling-magnetic-field is just generated in air gap, secondary will induce electromotive force and generate under traveling wave magnetic field intercepts
Magnetic field phase separation in electric current, the electric current and air gap just generates electromagnetic push.If primary is fixed, secondary is under thrust
It moves in a straight line；Conversely, then primary moves in a straight line.
By changing the vibration frequency of linear electric machine, interacts, may be implemented to band gap model with long wave traveling wave in matrix
The active control enclosed.Compared with traditional vibration isolation, this periodic structure can realize the integrated design of structure and vibrating isolation system, and
And have many advantages, such as that light weight, isolation frequency be wide, real-time active control, it is with a wide range of applications in engineering vibration isolation field.
Summary of the invention
Technical problem: the object of the present invention is to provide a kind of periodic structures with linear vibration electric motor, pass through periodicity
Insertion has the linear electric machine of wrapping layer, or the scatterer vibration of periodically setting protrusion being made of soft material and linear electric machine
Son, and the vibration frequency of linear adjustment motor, to realize the active control to bandgap range.
Technical solution: the present invention is a kind of periodic structure with linear vibration electric motor, which includes plate matrix,
Linear electric machine, and the one layer of soft material wrapped up outside linear electric machine, wherein linear electric machine and soft material are embedded on plate matrix
M row n is arranged to arrange, constitutes m row n column periodic structure；Linear electric machine is made of stator, mover and sliding rail.
The linear electric machine and soft material is stacked into a scatterer oscillator, and protrusion setting m row n arranges this on parent plate
The scatterer oscillator of sample, the form being arranged in this way are male-type；The scatterer oscillator of protrusion is unilateral or bilateral arrangement simultaneously.
The linear electric machine is cylindrical, cuboid, when using embedded type, the soft material of the cyclic annular package
Interior loop-shaped is identical with linear electric machine, and outer loop-shaped is round, rectangle；When using male-type, soft material and linear electric machine
Geometry it is identical, height it is identical or different, the lower section of linear electric machine is arranged in soft material.
The smallest repetitive unit of the m row n column composition periodic structure is called unit cell, the spread geometry between each unit cell
It is square, equilateral triangle or other polygons.
The axis arranged direction of the linear vibration electric motor and the normal direction of plate matrix are at 0~90 degree.
The vibration frequency of each linear vibration electric motor is adjustable；All motor oscillating frequencies are identical, or in row or column
Vibration frequency is gradually changed according to a certain function rule on direction.
The material of parent plate is the materials such as metal, concrete, ceramics, fibre reinforced composites or rubber, polyurethane；It is soft
Material is rubber or polyurethane high molecule material.
When using male-type, parent plate and soft material are pasted, and soft material and linear vibration electric motor are pasted.
The utility model has the advantages that compared with prior art, present invention has the advantage that
1) traditional periodic structure based on Bragg diffraction type is wanted to reach ideal low frequency vibration isolation range often size mistake
Greatly, and the structure be based on locally resonant mechanism, can be realized the vibration and noise reducing of low frequency under limited size, be more advantageous to reality
Using.It is easy to make simultaneously, it is convenient for standardized production.
2) at present most periodic structure shock absorber part mostly using passive control, i.e. structure once determination,
The attenuation frequency ranges having also determine therewith, it is desirable to expand again or to change bandgap range relatively difficult.And this band is wired
Property motor periodic structure can be realized by adjusting vibration frequency to the active control of bandgap range.
Detailed description of the invention
Fig. 1 is the periodic structure figure with linear electric machine of embedded type of the present invention；
Fig. 2 is the unit cell figure of the periodic structure of embedded type of the present invention；
Fig. 3 is the structural schematic diagram of linear electric machine of the present invention；
Fig. 4 is that linear electric machine of the present invention and soft material layer are the period of cuboid and unit cell according to equilateral triangle arrangement
Structure chart；
Fig. 5 is the periodic structure figure with linear electric machine of male-type of the present invention；
Fig. 6 is the unit cell figure of the periodic structure of male-type of the present invention；
Fig. 7 is the periodic structure figure of the linear motor of double-sided tape of male-type of the present invention；
Have in figure: plate matrix 1, soft material layer 2, linear vibration electric motor 3, stator 3-1, mover 3-2.
Specific embodiment
Forming method of the invention is as follows:
The linear vibration electric motor of m row n column is embedded in parent plate according to periodicity or relaxed periodicity arrangement；It is linear simultaneously
One layer of soft material is also wrapped up outside vibrating motor, forms the periodic vibration structure of embedded type.It can also be by soft material and linear vibration
Dynamic motor is stacked into a scatterer oscillator, the oscillator as periodicity or the arrangement of relaxed periodicity on parent plate.It is formed
The periodic structure with linear vibration electric motor of male-type.The scatterer oscillator of protrusion can unilateral or bilateral arrangement.At this point,
Using the connection type pasted between parent plate and soft material and linear vibration electric motor.It is arranged between each unit cell of periodic structure
Shape can be square, triangle or other polygons.
The arranged direction of linear electric machine can be with the normal direction of plate matrix at 0~90 degree of unspecified angle.It is each linear
The vibration frequency of vibrating motor is adjustable, can all motor oscillating frequencies it is identical, can also be expert at or column direction on vibrate frequency
Rate is gradually changed according to a certain function rule.The material of parent plate can be metal, concrete, ceramics, fiber-reinforced composite material
The materials such as material or rubber, polyurethane.Soft material can be the high molecular materials such as rubber or polyurethane.
With reference to the accompanying drawing, by embodiment, invention is further described in detail:
Embodiment 1:
As shown in Figure 1, 2, 3, the present embodiment is a kind of embedded type periodic structure with linear vibration electric motor, each list of Fig. 1
The arrangement mode of square lattice is used between born of the same parents, lattice constant is set as a1, the eccentric turbin generator of insertion m row's n column, outer bread
One layer of circular soft material is wrapped up in, Fig. 3 linear vibration electric motor is made of stator, mover, sliding rail etc..
Embodiment 2:
As shown in Figure 3,4, the present embodiment is a kind of embedded type periodic structure with linear vibration electric motor, each unit cell of Fig. 4
Between use the arrangement mode of equilateral triangle lattice, lattice constant is set as a1, the linear vibration electric motor of insertion m row's n column, linearly
The soft material of motor and package is cuboid, and Fig. 3 linear vibration electric motor is made of stator, mover, sliding rail etc..
Embodiment 3:
As shown in Fig. 3,5,6,7, the present embodiment is a kind of male-type periodic structure with linear vibration electric motor, linear to shake
Dynamic motor and soft material layer are stacked into a scatterer oscillator, and protrusion setting m arranges n and arranges such scatterer oscillator, each unit cell of Fig. 5
Between use the arrangement mode of square lattice, lattice constant is set as a1, Fig. 3 linear vibration electric motor is by stator, mover, sliding rail
Deng composition.Fig. 7 is to arrange the periodic structure of such scatterer oscillator in the two sides of plate matrix.
The working principle of linear electric machine are as follows: when armature winding is passed through AC power source, travelling-magnetic-field is just generated in air gap,
Secondary will induce electromotive force and generate electric current under traveling wave magnetic field intercepts, which just produces with the magnetic field phase separation in air gap
Raw electromagnetic push.If primary is fixed, secondary moves in a straight line under thrust；Conversely, then primary moves in a straight line.It is logical
The vibration frequency for changing linear electric machine is crossed, interacts with long wave traveling wave in matrix, the active control to bandgap range may be implemented
System.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of periodic structure with linear vibration electric motor, which is characterized in that the periodic structure includes plate matrix (1), linearly
Motor (3), and the one layer of soft material (2) wrapped up outside in linear electric machine (3), wherein linear electric machine (3) and soft material (2) are in plate
Insertion setting m row n is arranged on matrix (1), constitutes m row n column periodic structure；Linear electric machine (3) by stator (3-1), mover (3-2) and
Sliding rail composition.
2. a kind of periodic structure with linear vibration electric motor according to claim 1, which is characterized in that described is linear
Motor (3) and soft material (2) are stacked into a scatterer oscillator, and protrusion setting m row n arranges such scattering on parent plate (1)
Body oscillator, the form being arranged in this way are male-type；The scatterer oscillator of protrusion is unilateral or bilateral arrangement simultaneously.
3. a kind of periodic structure with linear vibration electric motor according to claim 1, which is characterized in that described is linear
Motor (3) is cylindrical, cuboid, when using embedded type, the interior loop-shaped and line of the soft material (2) of the cyclic annular package
Property motor (3) it is identical, and outer loop-shaped is round, rectangle；When using male-type, soft material (2) and linear electric machine (3) it is several
What shape is identical, and height is identical or different, and soft material (2) is arranged in the lower section of linear electric machine (3).
4. a kind of periodic structure with linear vibration electric motor according to claim 1, which is characterized in that the m row n
The smallest repetitive unit of column composition periodic structure is called unit cell, and the spread geometry between each unit cell is square, equilateral triangle
Or other polygons.
5. a kind of periodic structure with linear vibration electric motor according to claim 1, which is characterized in that the linear vibration
The axis arranged direction of dynamic motor (3) and the normal direction of plate matrix (1) are at 0~90 degree.
6. a kind of periodic structure with linear vibration electric motor according to claim 1, which is characterized in that each line
The vibration frequency of property vibrating motor (3) is adjustable；All motor oscillating frequencies are identical, or be expert at or column direction on vibration frequency by
It is gradually changed according to a certain function rule.
7. a kind of periodic structure with linear vibration electric motor according to claim 1, which is characterized in that parent plate (1)
Material be the materials such as metal, concrete, ceramics, fibre reinforced composites or rubber, polyurethane；Soft material (2) is rubber
Or polyurethane high molecule material.
8. a kind of periodic structure with linear vibration electric motor according to claim 1, which is characterized in that when using protrusion
When type, parent plate (1) and soft material (2) are pasted, and soft material (2) and linear vibration electric motor (3) are pasted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910826990.7A CN110449334A (en) | 2019-09-03 | 2019-09-03 | A kind of periodic structure with linear vibration electric motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910826990.7A CN110449334A (en) | 2019-09-03 | 2019-09-03 | A kind of periodic structure with linear vibration electric motor |
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| Publication Number | Publication Date |
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| CN110449334A true CN110449334A (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910826990.7A Pending CN110449334A (en) | 2019-09-03 | 2019-09-03 | A kind of periodic structure with linear vibration electric motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096632A (en) * | 2021-03-29 | 2021-07-09 | 杭州电子科技大学 | Shape memory alloy-based adjustable band gap phononic crystal and adjusting method |
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|---|---|---|---|---|
| CN105281529A (en) * | 2015-11-25 | 2016-01-27 | 歌尔声学股份有限公司 | Linear vibration motor |
| CN106205586A (en) * | 2016-07-11 | 2016-12-07 | 武汉理工大学 | A kind of metal-based foam fills broad band low frequency gap elasticity Meta Materials |
| CN109616092A (en) * | 2019-01-24 | 2019-04-12 | 中国人民解放军国防科技大学 | Metamaterial type light structure with low-frequency vibration and noise reduction and sound insulation functions |
| CN109979425A (en) * | 2019-04-23 | 2019-07-05 | 东南大学 | A kind of embedded type periodic structure plate with graded index |
| CN209088783U (en) * | 2019-06-03 | 2019-07-09 | 瑞声光电科技(常州)有限公司 | Linear vibration electric motor |
| CN211134523U (en) * | 2019-09-03 | 2020-07-31 | 东南大学 | Periodic structure with linear vibration motor |
-
2019
- 2019-09-03 CN CN201910826990.7A patent/CN110449334A/en active Pending
Patent Citations (6)
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| CN105281529A (en) * | 2015-11-25 | 2016-01-27 | 歌尔声学股份有限公司 | Linear vibration motor |
| CN106205586A (en) * | 2016-07-11 | 2016-12-07 | 武汉理工大学 | A kind of metal-based foam fills broad band low frequency gap elasticity Meta Materials |
| CN109616092A (en) * | 2019-01-24 | 2019-04-12 | 中国人民解放军国防科技大学 | Metamaterial type light structure with low-frequency vibration and noise reduction and sound insulation functions |
| CN109979425A (en) * | 2019-04-23 | 2019-07-05 | 东南大学 | A kind of embedded type periodic structure plate with graded index |
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| CN211134523U (en) * | 2019-09-03 | 2020-07-31 | 东南大学 | Periodic structure with linear vibration motor |
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| Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113096632A (en) * | 2021-03-29 | 2021-07-09 | 杭州电子科技大学 | Shape memory alloy-based adjustable band gap phononic crystal and adjusting method |
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