CN106907418A - Phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device - Google Patents
Phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device Download PDFInfo
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- CN106907418A CN106907418A CN201710042535.9A CN201710042535A CN106907418A CN 106907418 A CN106907418 A CN 106907418A CN 201710042535 A CN201710042535 A CN 201710042535A CN 106907418 A CN106907418 A CN 106907418A
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- negative poisson
- ratio
- vibration
- honeycomb core
- ratio honeycomb
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/121—Vibration-dampers; Shock-absorbers using plastic deformation of members the members having a cellular, e.g. honeycomb, structure
Abstract
The invention provides a kind of phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device, including the vibration isolator top panel (1) by being welded to connect, vibration isolator lower panel (2), negative poisson's ratio honeycomb core (3), also lead (4), block rubber (5) including being bonded in integral rear embedded cellular unit.The device lower panel is bolted with floor, and plant equipment is placed on above, is connected with.Customized parameter of the present invention is wide, including upper and lower panel thickness, the number of plies of honeycomb core, angle, wall thickness, and block rubber and lead thickness etc..By changing the size of lead and block rubber, the effectiveness in vibration suppression of assigned frequency point dynamic response is capable of achieving.With preferable effectiveness in vibration suppression, and suitable for solving low frequency Vibration, and there are vibration damping band gap properties wider in low-frequency range, overcome the heavy poorly efficient shortcoming of legacy equipment pedestal, be phonon crystal combination negative poisson's ratio honeycomb in engineering with having opened up new field.
Description
Technical field
The present invention relates to vibration isolation anti-impact device, more particularly to a kind of phonon crystal negative poisson's ratio honeycomb vibration isolation shock resistance
Device.
Background technology
Exploitation efficient light vibration isolation anti-impact device is the forward position class of plant equipment noise and vibration comfort design studies
Topic.Traditional vibration isolation anti-impact device mainly has single-layer partiting polarization system, double-layer vibration isolating system and buoyant raft shock-resistant system etc..
Due to single-layer partiting polarization simple system effectively, therefore it is widely used in engineering, but it has distinct disadvantage：(1) machine is worked as
When the forcing frequency of device is relatively low, vibration isolator rigidity must be designed to very little, and the stability of a system is poor；(2) equipment is non-rigid, vibration isolator
High frequency standing wave effect and basic nonrigid synthesis result cause that transport curve is tilted upward in high frequency, and occur a lot
Formant, so as to reduce the vibration isolating effect of high frequency region.
Double-layer vibration isolating system wants the vibration isolating effect for having obtained, and in addition to it need to configure vibration isolator meticulously, also needs to provide necessary
Intermediate mass, to reach required mass ratio.Usually require that mass ratio is more than 0.5, preferably up to 0.8, there is provided in excessive
Between the expense of quality be uneconomical and objectionable, so as to limit the application of double-layer vibration isolating system.
For buoyant raft shock-resistant system, say from the general extent, this is one has distributed mass, distribution elasticity and distribution resistance
The physical system of Buddhist nun, thus be a continuous parameter system, the Exact that obtain the system is very difficult.Exist at this stage
In buoyant raft design, accurately consider that the nonrigid influence of pedestal is also present using theory analysis or numerical computations tired in technical finesse
Difficulty, generally requires to obtain necessary data by means of actual measurement, considerably increases device development cost and cycle.
In addition, the equipment elasticity mounting means for using at present, either individual layer, double-deck or buoyant raft, are all belonging to
Passive type vibration isolation, low-frequency range can fail.
Additionally, above-mentioned various traditional isolation mounting is primarily adapted for use in the vibration problem of medium, high frequency, but for low-frequency range
Effectiveness in vibration suppression is not good.
Through retrieval, following correlation Chinese patent literature is found.
Patent document A：Bulletproof sandwich plate, application number 201210225023.3, publication number 102717542A.Patent
The weak point of document A is：Its sandwich plate for proposing cannot be as load-carrying construction, only with safeguard function.Therefore, work is worked as
When orientating load purposes as, solving the problems, such as load, laminate should be added not account for structural strength problem and simply focus on antiknock effect
Really, its structural strength can not solve the problems, such as load, and application surface is narrow.
Patent document B：Bionical negative poisson's ratio material and preparation method thereof, application number 201210018190.0, publication number
103214728A.The weak point of patent document B is：It belongs to microcosmic design of material, in the absence of macrostructure, its technical scheme
Vibration damping, multinomial use and the design objective such as shock resistance (antiknock) and structural strength can not individually be met.
Compared with the scheme after patent document A and patent document B are combined, the present invention is the main vibration damping of macroscopic view to the present invention
Anti-impact device, is not supplementary structure, nor microcosmic design of material.The present invention has considered vibration damping, shock resistance (antiknock)
And multinomial use and the design objective such as structural strength.Selected by different structure type and material, play all parts
Attribute advantage, enhances the overall performance of device.That is, composite negative poisson's ratio honeycomb vibration damping dress proposed by the present invention
It is primary load bearing equipment to put, and non-functional supplementary structure.Its use environment requires that it has enough structural strengths, inner sealed board and outer
The effect of shrouding is exactly to increase the rigidity of structure, it is ensured that the safety and reliability for using.The present invention is applicable to consider vibration damping
All engineering fields of anti-impact index, application surface is extensive.
Technological difficulties of the invention are：
Difficult point 1：Technological difficulties concentrate on processing and manufacturing aspect, particularly honeycomb manufacture.
Specific hardly possible exists：In certain installing space, with the increase of the honeycomb number of plies, cellular size also reduces therewith,
Common welding manner, such as welding gun are welded, and cannot be stretched into inside honeycomb core welding gun, it is impossible to ensure the welding of honeycomb
, easily there is sealing-off situation in quality.
The present invention solves the manufacture method that is used of the difficult point：The present invention is using vacuum brazing or monoblock cast
Mode manufactures honeycomb core.
Difficult point 2：Technological difficulties be honeycomb respectively with the connection method of upper and lower panel.
Specific hardly possible exists：Due to honeycomb aperture very little, structure depth is again very big, it is difficult to ensure that with upper and lower panel and honeycomb core
Welding quality.
Difficult point 3：Technological difficulties are that block rubber is installed with the connection of honeycomb core.
Specific hardly possible exists：The size of honeycomb core and block rubber is smaller, and block rubber is embedded into honeycomb core by the way of embedded
In, it is difficult to ensure that block rubber is fitted completely with the cell element wall of the Cellular structure of negative poisson's ratio honeycomb core.
The present invention solves the connection method that is used of the difficult point：Honeycomb core can be equally solved by the way of vacuum brazing
With top panel, lower panel, except vacuum brazing, it is also contemplated that gluing, structural strength can equally be guaranteed.For rubber
Block and the embedded installation of honeycomb core, can be manufactured into the shape of re-entrant angle in honeycomb core in order to install by the sectional dimension of block rubber,
So that block rubber is fitted completely with the cell element wall of the Cellular structure of negative poisson's ratio honeycomb core.
The content of the invention
It is anti-it is an object of the invention to provide a kind of vibration isolation of phonon crystal negative poisson's ratio honeycomb for defect of the prior art
Percussion mechanism, solves that current vibration isolation anti-impact device regulation parameter is few, and device quality is big, and low frequency vibration isolation poor performance problem.
According to a kind of phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device that the present invention is provided, including above vibration isolator
Plate, vibration isolator lower panel, negative poisson's ratio honeycomb core, lead, block rubber；
Vibration isolator top panel, vibration isolator lower panel, negative poisson's ratio honeycomb core are sequentially connected；
The lead of interconnection is arranged in the Cellular structure of negative poisson's ratio honeycomb core with block rubber.
Preferably, negative poisson's ratio honeycomb core, lead, block rubber constitute phonon crystal.
Preferably, the cell element wall of the Cellular structure of block rubber and negative poisson's ratio honeycomb core is connected by embedded mode；Lead
Depth direction of the bearing of trend of block parallel to negative poisson's ratio honeycomb core；Lead is embedded in block rubber, the insertion of rubber Block- matching
In the Cellular structure of negative poisson's ratio honeycomb core.
Preferably, negative poisson's ratio honeycomb core is welded to connect composition entirety with vibration isolator top panel, vibration isolator lower panel respectively
Load equipment.
Preferably, vibration isolator top panel is plant equipment placed side；Vibration isolator lower panel can be bolted floor.
Preferably, the Cellular structure Poisson's ratio of negative poisson's ratio honeycomb core is negative value, with auxetic effect.
Preferably, using vacuum brazing mode by vibration isolator top panel, vibration isolator lower panel respectively with negative poisson's ratio honeycomb
Core is connected.
Preferably, negative poisson's ratio honeycomb core is to manufacture what is obtained by the way of monoblock cast.
Compared with prior art, the present invention has following beneficial effect：
1st, present invention can assure that playing the effect of vibration isolation anti-impact, tool for the plant equipment in 10~1000Hz of working frequency
There are continuous damping band gap wider, and efficient and light weight, regulation parameter is wide, greatly expanded negative poisson's ratio honeycomb application neck
Domain, while reducing use cost.
2nd, the present invention plays vibration isolation anti-impact and acts on for the plant equipment in 10~100Hz of low-frequency range.
3rd, customized parameter of the present invention is wide, including above and below plate thickness, the wall thickness of negative poisson's ratio honeycomb core, the number of plies and angle
Degree etc., shock resistance and low frequency vibration isolation performance are taken into account, and overcome the heavy poorly efficient shortcoming of legacy equipment pedestal, are negative poisson's ratio
Honeycomb engineering application has opened up new field.For example for 500kg, working frequency works as honeycomb in the plant equipment of 18Hz
The number of plies is 5 layers, and during wall thickness 1mm, the effectiveness in vibration suppression under its working frequency tackles the dynamics amplification coefficient of impact up to 2.3dB
Only 0.186, serve the effect of hitting of good vibration shock isolation.
4th, the effect of phonon crystal is intensifier low frequency vibration damping performance, can realize the vibration isolating effect of low-frequency range；It is upper and lower
Panel plays a supportive role, intensifier bearing capacity, constraint honeycomb core deformation；The effect of negative poisson's ratio honeycomb core is to utilize it certainly
Body auxetic effect and honeycomb energy absorption characteristics, apparatus with shock absorbing, reduction are delivered to the impulsive force of base plate.
5th, the phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device that the present invention is provided.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, further feature of the invention,
Objects and advantages will become more apparent upon：
The structural representation of the negative poisson's ratio honeycomb core that Fig. 1 is provided for the present invention
The front view of the negative poisson's ratio honeycomb core that Fig. 2 is provided for the present invention
Fig. 3 for the present invention provide from change procedure figure from honeycomb core unit cell to phonon crystal negative poisson's ratio honeycomb unit cell.
The structural representation of the phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device that Fig. 4 is provided for the present invention.
The front view of the phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device that Fig. 5 is provided for the present invention.
In figure：
1- vibration isolator top panels
2- vibration isolator lower panels
3- negative poisson's ratio honeycomb cores
4- leads
5- block rubbers
The cell element of 300- honeycomb cores
301- first kind component units
302- Equations of The Second Kind component units
304- honeycomb core unit cells
305- phonon crystal unit cells
The hollow spaces of 601- first
The hollow spaces of 602- second
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These belong to the present invention
Protection domain.
As shown in Figure 4, Figure 5, it is a kind of phonon crystal negative poisson's ratio honeycomb vibration isolation shock resistance dress provided according to the present invention
Put, including vibration isolator top panel 1, vibration isolator lower panel 2, negative poisson's ratio honeycomb core 3, lead 4, block rubber 5；Vibration isolator top panel
1st, vibration isolator lower panel 2, negative poisson's ratio honeycomb core 3 are sequentially connected；The lead 4 of interconnection is arranged on negative Poisson with block rubber 5
In Cellular structure than honeycomb core 3.Negative poisson's ratio honeycomb core 3, lead 4, block rubber 5 constitute phonon crystal.Block rubber 5 and negative pool
Pine is connected by embedded mode than the cell element wall of the Cellular structure of honeycomb core 3；The bearing of trend of lead 4 is parallel to negative poisson's ratio
The depth direction of honeycomb core 3；Lead 4 is embedded in block rubber 5, and block rubber 5 matches the cell element for being embedded in negative poisson's ratio honeycomb core 3
In structure.
Specifically, as shown in figure 3, the photonic crystal structure that is constituted of negative poisson's ratio honeycomb core 3, lead 4, block rubber 5, its
In lead 4, the size of block rubber 5 can be designed in the preparation, so as to realize the effectiveness in vibration suppression of arbitrary frequency point so that
Obtaining the design for passing through phonon crystal with the scope of application wider, the especially present invention of the invention can effectively realize low-frequency range
Damping property.Further, as shown in Figure 4, Figure 5,3 row are connected between vibration isolator top panel 1, vibration isolator lower panel 2 to bear
The first kind component units 301 of Poisson's ratio honeycomb core, wherein, the cross section of first kind component units 301 trapezoidal shape in Figure 5
Shape, each column contains 14 first kind component units 301.In the first kind component units 301 of the negative poisson's ratio honeycomb core of adjacent column
Between be connected with the Equations of The Second Kind component units 302 of negative poisson's ratio honeycomb core.The inside of first kind component units 301 is hollow-core construction,
Form the first hollow space 601.The inside configuration that first kind component units are surrounded with Equations of The Second Kind component units is hollow-core construction, shape
Into the second hollow space 602.First kind component units 301 are made with Equations of The Second Kind component units 302 of same material.As schemed
Shown in 4, lead 4 is strip, and block rubber 5 is sheet.Lead 4 can be only partially embedded into block rubber 5.Lead 4 passes through rubber
Block 5 is suspended on negative poisson's ratio honeycomb core 3.
Negative poisson's ratio honeycomb core 3 is welded to connect the overall load of composition with vibration isolator top panel 1, vibration isolator lower panel 2 respectively
Equipment.Vibration isolator top panel 1 is plant equipment placed side；Vibration isolator lower panel 2 can be bolted floor.Negative poisson's ratio
The Cellular structure Poisson's ratio of honeycomb core 2 is negative value, with auxetic effect.The phonon crystal negative poisson's ratio honeycomb vibration isolation shock resistance
Respectively be connected with negative poisson's ratio honeycomb core 3 for vibration isolator top panel 1, vibration isolator lower panel 2 using vacuum brazing mode by device；It is negative
Poisson's ratio honeycomb core 2 is to manufacture what is obtained by the way of monoblock cast.
The present invention also provides a kind of preparation method of the phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device, including
By the size design to lead in phonon crystal 4 and block rubber 5, the effectiveness in vibration suppression of multiple or arbitrary frequency point is realized.Especially
It is damping property that the present invention can effectively realize low-frequency range by the design of phonon crystal.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make a variety of changes or change, this not shadow
Sound substance of the invention.In the case where not conflicting, feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (9)
1. a kind of phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device, it is characterised in that including vibration isolator top panel (1),
Vibration isolator lower panel (2), negative poisson's ratio honeycomb core (3), lead (4), block rubber (5)；
Vibration isolator top panel (1), vibration isolator lower panel (2), negative poisson's ratio honeycomb core (3) are sequentially connected；
The lead (4) of interconnection is arranged in the Cellular structure of negative poisson's ratio honeycomb core (3) with block rubber (5).
2. phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device according to claim 1, it is characterised in that negative Poisson
Phonon crystal is constituted than honeycomb core (3), lead (4), block rubber (5).
3. phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device according to claim 1, it is characterised in that block rubber
(5) it is connected by embedded mode with the cell element wall of the Cellular structure of negative poisson's ratio honeycomb core (3)；The bearing of trend of lead (4)
Parallel to the depth direction of negative poisson's ratio honeycomb core (3).
4. phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device according to claim 1, it is characterised in that lead
(4) it is embedded in block rubber (5), block rubber (5) matching is embedded in the Cellular structure of negative poisson's ratio honeycomb core (3).
5. phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device according to claim 1, it is characterised in that negative Poisson
It is welded to connect the overall load equipment of composition with vibration isolator top panel (1), vibration isolator lower panel (2) respectively than honeycomb core (3).
6. phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device according to claim 1, it is characterised in that vibration isolator
Top panel (1) is plant equipment placed side；Vibration isolator lower panel (2) can be bolted floor.
7. phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device according to claim 1, it is characterised in that negative Poisson
Cellular structure Poisson's ratio than honeycomb core (2) is negative value, with auxetic effect.
8. phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device according to claim 1, it is characterised in that using true
Respectively be connected with negative poisson's ratio honeycomb core (3) for vibration isolator top panel (1), vibration isolator lower panel (2) by empty brazing mode.
9. phonon crystal negative poisson's ratio honeycomb vibration isolation anti-impact device according to claim 1, it is characterised in that negative Poisson
It is to manufacture what is obtained by the way of monoblock cast than honeycomb core (2).
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726035A (en) * | 2017-10-31 | 2018-02-23 | 西安交通大学 | A kind of concertina honeycomb |
| CN107826227A (en) * | 2017-12-04 | 2018-03-23 | 贵州大学 | A kind of shrinkage pool honeycomb cavity structure anti-impact coating |
| CN108468738A (en) * | 2018-04-16 | 2018-08-31 | 哈尔滨工程大学 | Three-dimensional phonon crystal vibration absorber based on gasbag-type |
| CN108691938A (en) * | 2018-04-24 | 2018-10-23 | 清华大学 | A kind of oscillation damping method, system and vibration absorber for low-frequency elastic wave |
| CN108891364A (en) * | 2018-06-19 | 2018-11-27 | 哈尔滨工程大学 | A kind of reducing noise and drag covering of imitative honeycomb structure |
| CN110296172A (en) * | 2019-06-17 | 2019-10-01 | 江苏科技大学 | A kind of vibration isolation anti-impact device and preparation method thereof |
| WO2020208323A1 (en) * | 2019-04-10 | 2020-10-15 | Psa Automobiles Sa | Metamaterial for vibration filtering, and insulating part made with said metamaterial |
| CN112519330A (en) * | 2020-11-04 | 2021-03-19 | 东南大学 | Damping metamaterial damping plate |
| CN112665460A (en) * | 2020-12-22 | 2021-04-16 | 北京理工大学 | Indent honeycomb type explosion-proof construction |
| CN112922995A (en) * | 2019-12-06 | 2021-06-08 | 同济大学 | Composite energy absorption structure based on negative Poisson ratio structure |
| CN114001115A (en) * | 2021-10-29 | 2022-02-01 | 西安交通大学 | Gradient vibration reduction structure and vibration reduction method based on electromechanical conversion |
| CN114321259A (en) * | 2021-11-19 | 2022-04-12 | 中国船舶重工集团公司第七一九研究所 | Anti-impact energy-locking vibration isolation device based on chiral structure |
| CN115045939A (en) * | 2022-06-13 | 2022-09-13 | 大连海事大学 | Flexible thin layer of making an uproar falls in compound rubber vibration isolation |
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| CN107726035B (en) * | 2017-10-31 | 2020-05-22 | 西安交通大学 | Accordion type honeycomb |
| CN107726035A (en) * | 2017-10-31 | 2018-02-23 | 西安交通大学 | A kind of concertina honeycomb |
| CN107826227A (en) * | 2017-12-04 | 2018-03-23 | 贵州大学 | A kind of shrinkage pool honeycomb cavity structure anti-impact coating |
| CN108468738A (en) * | 2018-04-16 | 2018-08-31 | 哈尔滨工程大学 | Three-dimensional phonon crystal vibration absorber based on gasbag-type |
| CN108691938A (en) * | 2018-04-24 | 2018-10-23 | 清华大学 | A kind of oscillation damping method, system and vibration absorber for low-frequency elastic wave |
| 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 |
| CN108891364A (en) * | 2018-06-19 | 2018-11-27 | 哈尔滨工程大学 | A kind of reducing noise and drag covering of imitative honeycomb structure |
| WO2020208323A1 (en) * | 2019-04-10 | 2020-10-15 | Psa Automobiles Sa | Metamaterial for vibration filtering, and insulating part made with said metamaterial |
| FR3095023A1 (en) * | 2019-04-10 | 2020-10-16 | Centre National De La Recherche Scientifique | METAMATERIAU FOR VIBRATION FILTERING AND INSULATING PART MADE WITH LEDIT METAMATERIAU |
| CN110296172A (en) * | 2019-06-17 | 2019-10-01 | 江苏科技大学 | A kind of vibration isolation anti-impact device and preparation method thereof |
| CN112922995A (en) * | 2019-12-06 | 2021-06-08 | 同济大学 | Composite energy absorption structure based on negative Poisson ratio structure |
| CN112519330A (en) * | 2020-11-04 | 2021-03-19 | 东南大学 | Damping metamaterial damping plate |
| CN112519330B (en) * | 2020-11-04 | 2022-04-29 | 东南大学 | Damping metamaterial damping plate |
| CN112665460A (en) * | 2020-12-22 | 2021-04-16 | 北京理工大学 | Indent honeycomb type explosion-proof construction |
| CN114001115A (en) * | 2021-10-29 | 2022-02-01 | 西安交通大学 | Gradient vibration reduction structure and vibration reduction method based on electromechanical conversion |
| CN114321259A (en) * | 2021-11-19 | 2022-04-12 | 中国船舶重工集团公司第七一九研究所 | Anti-impact energy-locking vibration isolation device based on chiral structure |
| CN114321259B (en) * | 2021-11-19 | 2023-12-08 | 中国船舶重工集团公司第七一九研究所 | Anti-impact energy-locking vibration isolation device based on chiral structure |
| CN115045939A (en) * | 2022-06-13 | 2022-09-13 | 大连海事大学 | Flexible thin layer of making an uproar falls in compound rubber vibration isolation |
| CN115045939B (en) * | 2022-06-13 | 2024-04-02 | 大连海事大学 | Composite rubber vibration isolation noise reduction flexible thin layer |
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