CN110453540A - A kind of multiple multi-stage type supporting structure of floating plate track - Google Patents
A kind of multiple multi-stage type supporting structure of floating plate track Download PDFInfo
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- CN110453540A CN110453540A CN201910689338.5A CN201910689338A CN110453540A CN 110453540 A CN110453540 A CN 110453540A CN 201910689338 A CN201910689338 A CN 201910689338A CN 110453540 A CN110453540 A CN 110453540A
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- 239000011248 coating agent Substances 0.000 claims abstract description 67
- 238000000576 coating method Methods 0.000 claims abstract description 67
- 229920001971 elastomer Polymers 0.000 claims abstract description 39
- 239000010410 layer Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- 125000006850 spacer group Chemical group 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 11
- 238000005253 cladding Methods 0.000 abstract description 5
- 239000011247 coating layer Substances 0.000 abstract description 4
- 230000001629 suppression Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 description 14
- 230000001070 adhesive effect Effects 0.000 description 14
- 230000004044 response Effects 0.000 description 10
- 239000006185 dispersion Substances 0.000 description 7
- 230000009467 reduction Effects 0.000 description 5
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- 239000003292 glue Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to a kind of multiple multi-stage type supporting structures of floating plate track, multiple multi-stage type supporting structure supports floating plate by axial direction, the multiple multi-stage type supporting structure is overlapped by identical multilayered structure along axial direction, interior scatterer, internal coating, outer scatterer, external coating and aluminum sleeve have radially been sequentially distributed in every layer from the inside to the outside, has been equipped with rubber spacer between axially adjacent two layers.Compared with prior art, the present invention introduces multistage resonant structure inside supporting course, and the initial frequency of structure single order band gap is reduced while the bandwidth of widen structure band gap, effectively improves the effectiveness in vibration suppression of structure.In addition, can realize the controllability of cladding stiffness layer while the rigidity that coating layer material is effectively reduced also by making slot treatment to clad, realizes the purpose for keeping the start-stop frequency of structure single order band gap mobile to low frequency, further increase the damping property of structure.
Description
Technical field
The present invention relates to rail traffic vibration and noise reducing fields, more particularly, to a kind of multiple multi-stage type branch of floating plate track
Bearing structure.
Background technique
With the fast development of urban track traffic, the ambient vibration problem as caused by urban track traffic also becomes increasingly
It is prominent.Currently, the most common way is to be inserted into elasticity branch between upper track structure and infrastructure in track vibration control
Layer is held, the vibration generated by inertia motion decaying train operation of the upper track structure on elastic bearing layer.Pass through improvement
Floating plate track elastic bearing layer can effectively reduce vibration caused by driving.
In Specific construction, steel spring floating slab damper rail is the concrete road bed board that will have certain mass and rigidity
It is placed on steel spring vibration isolator, apart from blinding layer top surface 30mm or 40mm, constitutes quality-spring-vibrating isolation system.It is imitated in vibration damping
Can aspect, spring vibration-isolator floating plate track than the effect of rubber bearing formula floating plate track also than get well, steel spring so far
Floating plate railway roadbed has had more than 90 years history, and since cost is higher, it is mainly used for hospital, research institute, museum, music hall
Deng the occasion for having particular/special requirement to vibration and noise reducing.On the other hand, the service life of spring vibration-isolator is usually 5~7 years, and spring structure
Be easy because burn into be difficult to be resistant to intermittent high load capacity pressure, corrosion and generate the damage in structure, cause service life rapid
Subtract.
CN208201509U discloses a kind of butterfly spring floating plate vibration isolator, including top cover, pedestal, the chassis interior
Equipped with mandrel, the mandrel will adjust gasket, butterfly spring concatenation is connected, and the adjustment gasket is located at mandrel close to the one of pedestal
End is equipped with butterfly spring above the adjusting pad piece, is equipped with top cover above the butterfly spring, and the pedestal, top cover pass through the
One clip, the second clip, gum cover connection, and be bolted.Although it can change vibration isolation by changing butterfly spring the piece number
The rigidity of device.But the overlapped in series structure of spring is unfavorable for being used cooperatively with the long-term of steel spring floating slab, is used for a long time and is easy
The twist distortion of spring is caused, and causes structure aging.
Therefore need to design it is a kind of it is at low cost, the service life is long, locally resonant that is corrosion-resistant, can tolerate intermittent high load capacity pressure
Type supporting structure.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of floating plate tracks to use
Multiple multi-stage type supporting structure.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of multiple multi-stage type supporting structure of floating plate track, multiple multi-stage type supporting structure is by axial direction to floating
Plate is supported, and the multiple multi-stage type supporting structure is overlapped by identical multilayered structure along axial direction, in every layer
It has radially been sequentially distributed interior scatterer, internal coating, outer scatterer, external coating and aluminum sleeve, axial phase from the inside to the outside
Rubber spacer is equipped between two layers adjacent.
Further, the internal coating and/or external coating are equipped with notching construction.
Further, the notching construction includes:
Transversal slotting, the circular slot opened up along the circumferential direction of internal coating and/or external coating；
Vertical fluting, the perpendicular strip slot opened up along the axial direction of internal coating and/or external coating.
Further, the transversal slotting is divided into internal coating and/or external coating in the axial direction identical
Multi-section point, the groove width of transversal slotting is equal between every part.
Further, the described vertical fluting so that internal coating and/or external coating be divided into the axial direction it is identical
Multi-section point, the groove width vertically slotted between every part is equal.
Further, the internal coating, external coating and rubber spacer are in polyurethane material or rubber material
It is a kind of.
Further, the interior scatterer and outer scatterer are Steel material.
Further, between the interior scatterer and internal coating, between outer scatterer and external coating, external coating
Gluing is connect between aluminum sleeve.
Further, the rubber spacer is connect with axially adjacent two interlayers gluing, constitutes the repeated arrangement in axial direction
Structure.
Further, the outer diameter of the rubber spacer is identical as the outer diameter of aluminum sleeve, the internal coating, outsourcing
Coating, the thickness of outer scatterer are identical.
Further, the aluminum sleeve is aluminum alloy materials.
Further, multiple multi-stage type supporting structure is formed by stacking by 2~6 layers in the axial direction.
Compared with prior art, the floating plate track in the present invention is based on floating plate rail with multiple multi-stage type supporting structure
A kind of improvement structure of road locally resonant type supporting structure.Multiple multi-stage type supporting structure carries out floating plate by axial direction
Bearing, multiple multi-stage type supporting structure is overlapped by identical multilayered structure along axial direction, in every layer radially by it is interior extremely
It has been sequentially distributed interior scatterer, internal coating, outer scatterer, external coating and aluminum sleeve outside, has been equipped with rubber between adjacent two layers
Glue or polyurethane cushion.Compared with locally resonant type supporting structure, the present invention introduces multistage resonant structure inside supporting course,
The initial frequency that structure single order band gap is reduced while the bandwidth of widen structure band gap effectively improves the vibration damping effect of structure
Fruit.In addition, the present invention is also by making slot treatment to clad, it can be real while the rigidity that coating layer material is effectively reduced
The controllability for now coating stiffness layer is realized the purpose for keeping the start-stop frequency of structure single order band gap mobile to low frequency, is further increased
The damping property of structure.
Detailed description of the invention
Fig. 1 is the floating plate track schematic diagram of internal structure of multiple multi-stage type supporting structure in the present invention；
Fig. 2 is multiple multistage locally resonant type periodicity supporting course dispersion curve in the present invention；
Fig. 3 is frequency response curve comparison diagram；
Fig. 4 is the frequency response curve of structure after considering damping；
Fig. 5 is the multiple multi-stage type supporting structure clad transversal slotting schematic diagram of floating plate track in the present invention；
Fig. 6 is that floating plate track is vertically slotted schematic diagram with multiple multi-stage type supporting structure clad in the present invention；
Fig. 7 is the dispersion curve of locally resonant type periodicity supporting course under transversal slotting mode in the present invention；
Fig. 8 is the dispersion curve of locally resonant type periodicity supporting course under vertical mode of grooving in the present invention.
In figure: 1, interior scatterer, 2, internal coating, 3, outer scatterer, 4, external coating, 5, aluminum sleeve, 6, rubber pad
Layer.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
The multiple multi-stage type supporting structure of floating plate track in the present embodiment, multiple multi-stage type supporting structure is by axial direction
Floating plate is supported, the multiple multi-stage type supporting structure is overlapped by identical multilayered structure along axial direction,
Referring to Fig. 1, interior scatterer 1, internal coating 2, outer scatterer 3, external coating 4 have radially been sequentially distributed in every layer from the inside to the outside
With aluminum sleeve 5, rubber spacer 6 is equipped between axially adjacent two layers.
Fluting design: internal coating 2 and/or external coating 4 are equipped with notching construction.Notching construction includes: transversal slotting,
The circular slot opened up along the circumferential direction of internal coating 2 and/or external coating 4；Vertical fluting, along internal coating 2 and/or outer cladding
The perpendicular strip slot that the axial direction of layer 4 opens up.It is identical that transversal slotting is divided into internal coating 2 and/or external coating 4 in the axial direction
Multi-section point, the groove width of transversal slotting is equal between every part.It is vertical to slot so that internal coating 2 and/or external coating 4 are in axial direction
On be divided into identical multi-section point, the groove width vertically slotted between every part is equal.
Each layer choosing material and connection: referring to table 1, internal coating 2, external coating 4 and rubber spacer 6 are polyurethane material or rubber
One of glue material.The interior scatterer 1 and outer scatterer 3 is Steel material.Between interior scatterer 1 and internal coating 2, outside
Gluing connects between scatterer 3 and external coating 4, between external coating 4 and aluminum sleeve 5.Rubber spacer 6 and axially adjacent two
The connection of interlayer gluing, constitutes the repeated arrangement structure in axial direction, and aluminum sleeve 5 is aluminum alloy materials.
1 material parameter table of table
Size type selecting: multiple multi-stage type supporting structure is formed by stacking by 2~6 layers in the axial direction.The outer diameter of rubber spacer 6 with
The outer diameter of aluminum sleeve 5 is identical, and the internal coating 2, external coating 4, the thickness of outer scatterer 3 are identical.Vertically
Single layer structure in the axial direction with a thickness of 8cm, the diameter of interior scatterer 1 is 14cm, and the overall diameter of internal coating 2 is 18cm,
The overall diameter of outer scatterer 3 is 22cm, and the overall diameter of external coating 4 is 26cm, and supporting course diameter is 30cm, internal coating 2, outer
Clad 4 with a thickness of 7cm, aluminum sleeve 5 with a thickness of 8cm, rubber spacer 6 with a thickness of 0.5cm, when construction, specifically can root
It is adjusted according to demand.
The multiple multi-stage type supporting structure of floating plate track and locally resonant type supporting structure in the present embodiment is damping
It can compare:
It is compared with original locally resonant type periodicity supporting course, multiple multistage locally resonant type supporting structure draws in inside
Multistage resonant structure is entered.The dispersion curve that structure is calculated using finite element software COMSOL, by the vertical vibration isolation of underground railway track
It is required that screening to dispersion curve, the dispersion curve after screening is as shown in Figure 2.
From figure 2 it can be seen that comparing with local resonance type periodicity supporting course, multiple multistage locally resonant type is periodical
There are two band gap in the range of 200Hz for supporting course.The start-stop frequency of first band gap is 51Hz and 88Hz, Article 2 band gap
Start-stop frequency be 131Hz and 166Hz, there are a passband between two band gap, the start-stop frequency of passband is respectively corresponded
The cutoff frequency of first band gap and the initial frequency of Article 2 band gap.
For the vibration transmissibility for further analyzing limit cycle structure, three periods multiple multistage office is established in COMSOL
The finite element model of domain resonance type periodicity supporting course.Apply acceleration excitation in structure upper surface, calculate the response of lower end surface,
Obtain the frequency response curve of structure.Multiple multistage locally resonant type periodicity supporting course frequency response curve calculated result is as shown in Figure 3.
From figure 3, it can be seen that multiple multistage locally resonant periodicity supporting course is there are two apparent response attenuation areas,
Response in this area has obvious decaying, and the start-stop frequency of attenuation region and the band gap being calculated match.Second decaying
The attenuation degree of area's internal vibration is smaller compared to for the first decay area, and the corresponding response for responding amplifier section is also lower.With it is general
Logical locally resonant type periodicity supporting course is compared, the start-stop frequency of multiple multistage locally resonant type periodicity supporting course second order band gap
It significantly reduces.This is advantageous the low frequency vibration damping of structure, but multiple multistage one second order of locally resonant type periodicity supporting course
Passband between band gap limits the further performance of structural vibration reduction performance.
For the damping property for further analyzing two kinds of structures, material damping is introduced, considers multiple multistage office after material damping
The frequency response curve calculated result of domain resonance type periodicity supporting course and original periodical supporting course is as shown in Figure 4.
Figure 4, it is seen that the frequency response curve of two kinds of structures all becomes more smooth, is computed after considering material damping
The bandwidth of multistage locally resonant type periodicity supporting course band gap in 200Hz frequency range multiple at this time is 72Hz, locally resonant
The bandwidth of type periodicity supporting course band gap in 200Hz frequency range is 78Hz, and the two is almost consistent, but multiple multistage local is total
Passband between two band gap of vibration shape periodicity supporting course limits the further performance of structural vibration reduction performance.By multiple multistage office
The simplified model of domain resonant structure is it is found that the parameter by adjusting structure can be adjusted the bandwidth of passband, with passband
Bandwidth is gradually reduced, and the effectiveness in vibration suppression of multiple multistage locally resonant type periodicity supporting course can gradually be more than the locally resonant type period
Property supporting course.
Clad fluting performance test in the present embodiment:
The locally resonant mechanism of phonon crystal shows that total can be effectively reduced by the rigidity for reducing clad
The position that single order band gap occurs.It is rigid reduction clad can be reached by the elasticity modulus of reduction coating layer material under normal circumstances
The purpose of degree.But in practical engineering applications, the material that clad can be chosen is limited, and works as clad elasticity modulus
When too small, the reliability of total is difficult to ensure, thus should change structure design by way of to cladding stiffness layer into
Row adjustment.
The safe and reliable of total can be guaranteed while cladding stiffness layer is effectively reduced to clad fluting.According to
The difference in fluting direction, locally resonant type periodicity supporting course can be divided into transversal slotting and two different shapes of vertically slotting
Formula.When transversal slotting, rubber adhesive is divided into the equal two parts up and down of thickness；When vertical fluting, perpendicular rubber adhesive is pressed
It specifies number by N equal part.The corresponding structure of two kinds of mode of grooving is as illustrated in Figures 5 and 6.
Two kinds of mode of grooving local area resonance type periodicity supporting course single order band gap are analyzed using finite element software COMSOL
Influence, when making transversal slotting processing to rubber adhesive, the part of 3.5cm thickness is truncated among rubber adhesive, entirely
Two parts up and down that clad is divided into a thickness of 1.75cm, when making vertical slot treatment to rubber adhesive, rubber coated
Layer is divided into 24 parts, weeds out 12 pieces therein in the way of being spaced one.Analysis is it is found that rubber bag under two kinds of mode of grooving
The volume of coating is the half of former rubber adhesive volume.Locally resonant type under two kinds of mode of grooving is calculated separately periodically to prop up
The dispersion curve of layer is held, calculated result is as shown in FIG. 7 and 8.
From in Fig. 7 and 8 as can be seen that two kinds of mode of grooving under locally resonant type periodicity supporting course single order band gap
Only frequency reduces.When transversal slotting, the start-stop frequency of the single order band gap of structure is 37Hz to 91Hz (Fig. 7).When vertical fluting,
The start-stop frequency of the single order band gap of structure is 36Hz to 92Hz (Fig. 8).The result that two kinds of mode of grooving obtain is almost consistent.Analysis
It is found that making transversal slotting processing to rubber adhesive or vertical slot treatment is all to reach drop by reducing the volume accounting of rubber
The purpose of low rubber coated stiffness layer.It is final when transversal slotting and the vertical obtained rubber adhesive of two kinds of mode of grooving of fluting
When volume is identical, the final rigidity for the clad that two kinds of mode of grooving obtain is also identical.To two kinds of fluting sides shown in Figures 5 and 6
The volume of formula, the rubber adhesive being truncated is identical, therefore the result being calculated is also close.
When making slot treatment to rubber adhesive, it is assumed that the volume accounting of rubber adhesive is n after fluting, then rubber at this time
The equivalent stiffness of glue clad are as follows: kn=nk.The then reduced mechanical model of the single order band gap start-stop frequency of structure are as follows:
To two kinds of mode of grooving shown in Figures 5 and 6, the volume accounting of rubber adhesive is 0.5 after slot treatment, according to
The start-stop frequency of the single order band gap of structure at this time is calculated in simplified formula are as follows: f1=39Hz；f2=93Hz.
The result that the result and finite element software being calculated according to simplified formula obtain is almost the same.To rubber adhesive
It can be effectively reduced the start-stop frequency of structure single order band gap as slot treatment.
The band gap of locally resonant type periodicity supporting course is total from the local that steel scatterer, rubber adhesive and matrix form
The start-stop frequency of vibrating system, band gap can be obtained by calculating two kinds of mode of oscillations of locally resonant system, pass through widen structure
The bandwidth of band gap or the initial frequency for reducing structure single order band gap can effectively improve the effectiveness in vibration suppression of structure.Clad is opened
Slot processing can realize the controllability of cladding stiffness layer while the rigidity that coating layer material is effectively reduced, in practical applications
Fluting scheme should be reasonably adjusted according to the requirement of structural vibration reduction；The introducing of multiple multistage locally resonant system can make structure low
More band gap are opened within the scope of frequency, the bandwidth for reducing passband between adjacent two band gap by adjusting structural parameters can make to tie
Structure obtains better effectiveness in vibration suppression.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (10)
1. a kind of multiple multi-stage type supporting structure of floating plate track, which is characterized in that multiple multi-stage type supporting structure is by axial direction
Direction supports floating plate, the multiple multi-stage type supporting structure be overlapped by identical multilayered structure along axial direction and
At interior scatterer (1), internal coating (2), outer scatterer (3), external coating have radially been sequentially distributed in every layer from the inside to the outside
(4) and aluminum sleeve (5) rubber spacer (6), are equipped between axially adjacent two layers.
2. a kind of multiple multi-stage type supporting structure of floating plate track according to claim 1, which is characterized in that described
Internal coating (2) and/or external coating (4) are equipped with notching construction.
3. a kind of multiple multi-stage type supporting structure of floating plate track according to claim 2, which is characterized in that described
Notching construction includes:
Transversal slotting, the circular slot opened up along the circumferential direction of internal coating (2) and/or external coating (4)；
Vertical fluting, the perpendicular strip slot opened up along the axial direction of internal coating (2) and/or external coating (4).
4. a kind of multiple multi-stage type supporting structure of floating plate track according to claim 3, which is characterized in that described
Transversal slotting makes internal coating (2) and/or external coating (4) be divided into identical multi-section point in the axial direction, horizontal between every part
Groove width to fluting is equal.
5. a kind of multiple multi-stage type supporting structure of floating plate track according to claim 3, which is characterized in that described
Vertical fluting is erected between every part so that internal coating (2) and/or external coating (4) are divided into identical multi-section point in the axial direction
Groove width to fluting is equal.
6. a kind of multiple multi-stage type supporting structure of floating plate track according to claim 1, which is characterized in that described
Internal coating (2), external coating (4) and rubber spacer (6) are one of polyurethane material or rubber material.
7. a kind of multiple multi-stage type supporting structure of floating plate track according to claim 1, which is characterized in that described
Interior scatterer (1) and outer scatterer (3) are Steel material.
8. a kind of multiple multi-stage type supporting structure of floating plate track according to claim 1, which is characterized in that described
Between interior scatterer (1) and internal coating (2), between outer scatterer (3) and external coating (4), external coating (4) and aluminum set
Gluing connection between cylinder (5).
9. a kind of multiple multi-stage type supporting structure of floating plate track according to claim 1, which is characterized in that described
Rubber spacer (6) is connect with axially adjacent two interlayers gluing, constitutes the repeated arrangement structure in axial direction.
10. a kind of multiple multi-stage type supporting structure of floating plate track according to claim 1, which is characterized in that described
Rubber spacer (6) outer diameter it is identical as the outer diameter of aluminum sleeve (5), the internal coating (2), outer dissipates external coating (4)
The thickness of beam (3) is identical.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111877058A (en) * | 2020-08-12 | 2020-11-03 | 中南大学 | Floating plate track vibration isolator device based on three-dimensional phononic crystal |
| CN115627853A (en) * | 2022-10-14 | 2023-01-20 | 合肥工业大学 | Low-frequency wide-bandgap phononic crystal unit cell, phononic crystal plate structure and application |
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| CN106894298A (en) * | 2017-01-10 | 2017-06-27 | 西南交通大学 | Floating plate track vibration isolator |
| CN107120383A (en) * | 2017-06-19 | 2017-09-01 | 哈尔滨工程大学 | A kind of phonon crystal vibration absorbing coupling |
| CN107503471A (en) * | 2017-07-31 | 2017-12-22 | 中国十七冶集团有限公司 | A kind of viscoelastic sprung shock-strut for having Torsion Coupling effect |
| CN207558416U (en) * | 2017-07-31 | 2018-06-29 | 上海宇航系统工程研究所 | A kind of locally resonant type phonon crystal |
| CN107542827A (en) * | 2017-10-17 | 2018-01-05 | 吉林大学 | A kind of composite construction phonon crystal vibration isolating suspension |
| CN109243420A (en) * | 2018-11-01 | 2019-01-18 | 西安建筑科技大学 | A kind of one-dimensional Order Scattering body discretization locally resonant structure phonon crystal axis |
| CN210561476U (en) * | 2019-07-29 | 2020-05-19 | 同济大学 | Multiple multistage type supporting structure for floating plate track |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111877058A (en) * | 2020-08-12 | 2020-11-03 | 中南大学 | Floating plate track vibration isolator device based on three-dimensional phononic crystal |
| CN115627853A (en) * | 2022-10-14 | 2023-01-20 | 合肥工业大学 | Low-frequency wide-bandgap phononic crystal unit cell, phononic crystal plate structure and application |
| CN115627853B (en) * | 2022-10-14 | 2024-09-03 | 合肥工业大学 | Phonon crystal unit cell with low bandwidth forbidden band and phonon crystal plate structure and application |
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