CN102878235A - Compound phonon crystal rod with multi-dimensional vibration absorbing function - Google Patents
Compound phonon crystal rod with multi-dimensional vibration absorbing function Download PDFInfo
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- CN102878235A CN102878235A CN2012103613268A CN201210361326A CN102878235A CN 102878235 A CN102878235 A CN 102878235A CN 2012103613268 A CN2012103613268 A CN 2012103613268A CN 201210361326 A CN201210361326 A CN 201210361326A CN 102878235 A CN102878235 A CN 102878235A
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Abstract
The invention aims to provide a compound phonon crystal rod with a multi-dimensional vibration absorbing function, which includes a rod body, local vibrators, end caps and a connecting rod, wherein the rod body is hollow and internally provided with a Bragg phonon crystal internal core formed by cyclically arranging steel balls and rubber; the end caps are mounted at the two ends of the rod body; the local vibrator adopts an annular structure with a rubber inner layer and a copper outer layer; the local vibrators are cyclically arranged on the outer surface of the rod body; the cross section of the connecting rod is T-shaped; one end of the connecting rod is positioned at the outer part of the rod body, and the remaining part thereof is positioned inside the rod body; and a spring is mounted between the end part of the connecting rod inside the rod body and the end cap. The compound phonon crystal rod has simple and compact integral structure and wide application range, is suitable for all sorts of vibration absorbing platforms and mechanical arms, and has the characteristics of lower requirement for environment, and outstanding multi-dimensional vibration absorbing effect in low and medium frequency.
Description
Technical field
What the present invention relates to is the connecting rod in a kind of vibration and noise reducing field.
Background technique
All exist various vibration problems in mechanical industry and other industrial departments, wherein many vibrations all are nuisance vibrations, and these vibrations bring huge loss or buried huge potential safety hazard to our productive life.Excessive vibration and the noise that causes because of vibration also pollute the environment in addition, and the infringement people's is healthy.Must be pointed out that simultaneously vibration can not eliminate fully, we can only weaken vibration by various means, until the effect of vibration is within the scope that we allow.In recent years, studies show that of phonon crystal, phonon crystal can be used for controlling the elasticity wave propagation, has broad application prospects in novel acoustic device, vibration and noise reducing field.
Under many circumstances, vibration is multidimensional, not only has flexure vibrations to also have extensional vibration, torsional vibration.Multi-dimensional vibration all can produce harmful effect to personnel or equipment under many circumstances, causes various infringement, affects the precision of manipulator movement locus such as the multi-dimensional vibration of manipulator, and the multi-dimensional vibration of lathe affects the machining accuracy of part etc.
Summary of the invention
The object of the present invention is to provide a kind of compound phonon crystal bar with multidimensional vibration reduction function of the effect that reaches the multidimensional vibration reduction under the medium and low frequency band.
The object of the present invention is achieved like this:
A kind of compound phonon crystal bar with multidimensional vibration reduction function of the present invention, it is characterized in that: comprise shaft, the local oscillator, end cap, connecting rod, shaft is hollow, be equipped with by steel ball shaft inside, the rubber cycle is put the Bragg type phonon crystal inner core of composition, end cap is installed at the two ends of shaft, the local oscillator is that internal layer is rubber, the outer loop configuration that forms for copper, the local oscillator periodic is arranged in the outer surface of shaft, the cross section of connecting rod is T-shaped, connecting rod one end is positioned at the shaft outside, remaining part is positioned at shaft inside, and connecting rod is mounting spring between the end of shaft inside and end cap.
The present invention can also comprise:
1, also comprise back-up ring, back-up ring is installed in the end cap outside, and packing groove is set on the end cap, adds filler in the packing groove, and back-up ring compresses filler and makes filler swelling in packing groove.
2, described filler is poly-fluorine tetrem alkene.
3, Bragg type phonon crystal inner core cooperates with the shaft internal surface gaps.
Advantage of the present invention is: overall structure of the present invention is simply compact, has wide range of applications, applicable to various vibration reduction platform structures and manipulator.And it is lower to have environmental requirement, to the characteristics such as the multidimensional vibration reduction of medium and low frequency is remarkably productive.
Description of drawings
Fig. 1 is generalized section of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is Bragg type phonon crystal inner core schematic diagram;
Fig. 4 is local oscillator structure schematic diagram.
Embodiment
For example the present invention is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～4, connecting rod 1 can connect hollow stem 2 with upper lower bolster or connect simultaneously identical bar 2, and flange plate 10 plays the effect of connection.Filler 12 is positioned in the packing groove of end cap 7, and back-up ring 7 compresses filler, makes filler 12 swelling in packing groove, and the material of filler is poly-fluorine tetrem alkene, because hollow stem 2 is oily, so it plays oil-tightening effect.Local oscillator 31 is rubber, and local oscillator 32 is copper, the local oscillator periodic be arranged in hollow stem 2 outer surfaces.The length of bar also can lengthen and shorten as required, and the mode that can be connected by swelling between local oscillator and the bar is perhaps by glued together.41 is steel ball, 42 rubber, and 41,42 cycles put and form Bragg type phonon crystal inner core, and Prague inner core places the inner chamber of hollow stem 2, and core outer surface and hollow stem 2 internal surface gaps cooperate in Prague.There is feather key 11 to connect between back-up ring 8 and the connecting rod 1, connects by pin 6 between hollow shaft 2 and the back-up ring 8.Connecting rod 1 is connected with end cap by spring 5 connections, and the pretightening force of spring 5 can require adjust by quantity and the thickness of pad 13 according to the vibration band gap.
The connection of 1 combined type phonon crystal inner core
With 41,42 arranged sequentially by the cycle, then with 41, the 42 composition inner cores that bond together successively, the length of inner core can be according to the height of upper lower bolster, and perhaps the length of manipulator determines.
The connection of 2 combined type phonon crystal inner chambers
Bonding phonon crystal inner core is put into hollow shaft 2, then pad 13 is inserted in connecting rod 1, again connecting rod 1 is put into respectively at two ends, the inner core left and right sides, and then spring 5 is packed in the connecting rod 1 on the left side, just the end cap 7 on the left side is tightened again, then aerial the pin of pin 6 insertion end caps 7, pin is used for preventing that hollow stem 2 and end cap 7 from relative torsion occuring, again filler 12 is put into the stuffing box of end cap, with back-up ring 8 filler is fixed, connect by feather key between back-up ring 8 and the connecting rod 1, the end cap 7 of right-hand member can be tightened behind the spring of in like manner packing into.Spring is owing to being compressed with pretightening force, and the pretightening force of spring can be regulated by increase and decrease pad 13.At last flange plate 10 is contained in the two ends of connecting rod 1.
The connection of 3 combined type phonon crystal local oscillators
The working procedure of 4 combined type phonon crystals
When the extensional vibration excitation is imported compound bar into from left end connecting rod 1 such as Fig. 1, because the band gap effect of the Bragg type phonon crystal inner core of pretightening force is arranged, so that this extensional vibration excitation is decayed in certain frequency band range phonon crystal extensional vibration band gap.When the flexure vibrations excitation was imported into, connecting rod 1 drove hollow stem 2 flexure vibrations by end cap 7, and under the transverse vibration effect of the local oscillator on hollow stem 2 outer walls, flexure vibrations will be decayed in certain frequency band range phonon crystal flexure vibrations band gap.When the torsional vibration excitation is imported into, feather key 11, pin 6 play the effect of transmitting torque, thereby drive hollow stem 2 and do torsional vibration, under the torsional vibration effect of local oscillator, the torsional vibration excitation of input will be decayed in certain frequency band range phonon crystal torsional vibration band gap.Connecting rod 1, flange plate 10 can carry out Secondary Design according to the situation of concrete connection, and the core concept of design is can be with platform and rod member, and rod member and rod member couple together.Because the local resonance type phonon crystal that hollow stem 2 and local oscillator form has flexure vibrations band gap and the torsional vibration band gap of medium and low frequency scope simultaneously, and the vibration damping band gap of the Bragg type phonon crystal of the large difference of elastic constants that is made of Prague inner core also is positioned at the medium and low frequency scope, therefore the present invention can suppress simultaneously that the outside imports into vertically, bending and torsional vibration, thereby realized the function of medium and low frequency multidimensional vibration reduction.
Principle of the present invention is:
1. the Bragg type phonon crystal bar of the large difference of elastic constants of axial vibration by pretightening force is arranged suppresses and decays;
2. flexure vibrations are by local resonance type phonon crystal bar vibration damping;
3. torsional vibration is by local resonance type phonon crystal bar vibration damping.
Claims (4)
1. compound phonon crystal bar with multidimensional vibration reduction function, it is characterized in that: comprise shaft, the local oscillator, end cap, connecting rod, shaft is hollow, be equipped with by steel ball shaft inside, the rubber cycle is put the Bragg type phonon crystal inner core of composition, end cap is installed at the two ends of shaft, the local oscillator is that internal layer is rubber, the outer loop configuration that forms for copper, the local oscillator periodic is arranged in the outer surface of shaft, the cross section of connecting rod is T-shaped, connecting rod one end is positioned at the shaft outside, remaining part is positioned at shaft inside, and connecting rod is mounting spring between the end of shaft inside and end cap.
2. a kind of compound phonon crystal bar with multidimensional vibration reduction function according to claim 1, it is characterized in that: comprise that also back-up ring, back-up ring are installed in the end cap outside, arrange packing groove on the end cap, add filler in the packing groove, back-up ring compresses filler and makes filler swelling in packing groove.
3. a kind of compound phonon crystal bar with multidimensional vibration reduction function according to claim 2 is characterized in that: described filler is poly-fluorine tetrem alkene.
4. arbitrary described a kind of compound phonon crystal bar with multidimensional vibration reduction function according to claim 1-3, it is characterized in that: Bragg type phonon crystal inner core cooperates with the shaft internal surface gaps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210361326.8A CN102878235B (en) | 2012-09-21 | 2012-09-21 | Compound phonon crystal rod with multi-dimensional vibration absorbing function |
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| CN201210361326.8A CN102878235B (en) | 2012-09-21 | 2012-09-21 | Compound phonon crystal rod with multi-dimensional vibration absorbing function |
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| CN102878235A true CN102878235A (en) | 2013-01-16 |
| CN102878235B CN102878235B (en) | 2014-06-11 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291882A (en) * | 2013-05-13 | 2013-09-11 | 哈尔滨工程大学 | Local resonance type photonic crystal vibration damping gear |
| CN104538019A (en) * | 2014-12-25 | 2015-04-22 | 哈尔滨工程大学 | Generalized photonic crystal acoustic shield |
| CN107289055A (en) * | 2017-07-12 | 2017-10-24 | 广东科学技术职业学院 | The magnetorheological vibration isolating suspension of three-dimensional tunable locally resonant type Meta Materials |
| CN108859594A (en) * | 2018-04-26 | 2018-11-23 | 华东交通大学 | A kind of High Speed Railway Trains wheel vibration absorber based on phonon crystal |
| CN113007254A (en) * | 2021-02-08 | 2021-06-22 | 天津大学 | Elastic wave metamaterial vibration isolation device with particle damping characteristic |
| CN113816128A (en) * | 2021-08-13 | 2021-12-21 | 安徽上洋管业科技有限公司 | Synchronous displacement type cut-off transportation device in production of HDPE double-wall corrugated pipe |
| CN115030976A (en) * | 2022-05-13 | 2022-09-09 | 江苏科技大学 | Piston rod damping method of automobile damper based on phononic crystal |
| CN114352666B (en) * | 2022-01-07 | 2023-09-22 | 天津大学 | Local resonance nonlinear metamaterial device with synergistic effect of forbidden band and particle damping |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11108113A (en) * | 1997-10-09 | 1999-04-20 | Yokohama Rubber Co Ltd:The | Base isolation support device |
| WO2007084318A2 (en) * | 2006-01-13 | 2007-07-26 | The Regents Of The University Of California | Pulse trapping composite granular medium and methods for fabricating such medium |
| CN102635657A (en) * | 2012-04-23 | 2012-08-15 | 哈尔滨工程大学 | Phonon crystal angle bar with multidimensional damping function |
| CN102644688A (en) * | 2012-04-24 | 2012-08-22 | 北京航空航天大学 | Landing mechanism-based legged mechanical cushioning device |
| CN202811965U (en) * | 2012-09-21 | 2013-03-20 | 哈尔滨工程大学 | Compound type photonic crystal rod provided with multi-dimension vibration reduction function |
-
2012
- 2012-09-21 CN CN201210361326.8A patent/CN102878235B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11108113A (en) * | 1997-10-09 | 1999-04-20 | Yokohama Rubber Co Ltd:The | Base isolation support device |
| WO2007084318A2 (en) * | 2006-01-13 | 2007-07-26 | The Regents Of The University Of California | Pulse trapping composite granular medium and methods for fabricating such medium |
| CN102635657A (en) * | 2012-04-23 | 2012-08-15 | 哈尔滨工程大学 | Phonon crystal angle bar with multidimensional damping function |
| CN102644688A (en) * | 2012-04-24 | 2012-08-22 | 北京航空航天大学 | Landing mechanism-based legged mechanical cushioning device |
| CN202811965U (en) * | 2012-09-21 | 2013-03-20 | 哈尔滨工程大学 | Compound type photonic crystal rod provided with multi-dimension vibration reduction function |
Non-Patent Citations (1)
| Title |
|---|
| 温激鸿等: "声子晶体振动带隙及减振特性研究", 《中国科学 E辑：技术科学》, vol. 37, no. 9, 31 December 2007 (2007-12-31), pages 1126 - 1139 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291882A (en) * | 2013-05-13 | 2013-09-11 | 哈尔滨工程大学 | Local resonance type photonic crystal vibration damping gear |
| CN104538019A (en) * | 2014-12-25 | 2015-04-22 | 哈尔滨工程大学 | Generalized photonic crystal acoustic shield |
| CN107289055A (en) * | 2017-07-12 | 2017-10-24 | 广东科学技术职业学院 | The magnetorheological vibration isolating suspension of three-dimensional tunable locally resonant type Meta Materials |
| CN107289055B (en) * | 2017-07-12 | 2019-12-31 | 广东科学技术职业学院 | Three-dimensional tunable local resonance type metamaterial magnetorheological vibration isolation support |
| CN108859594A (en) * | 2018-04-26 | 2018-11-23 | 华东交通大学 | A kind of High Speed Railway Trains wheel vibration absorber based on phonon crystal |
| CN113007254A (en) * | 2021-02-08 | 2021-06-22 | 天津大学 | Elastic wave metamaterial vibration isolation device with particle damping characteristic |
| CN113816128A (en) * | 2021-08-13 | 2021-12-21 | 安徽上洋管业科技有限公司 | Synchronous displacement type cut-off transportation device in production of HDPE double-wall corrugated pipe |
| CN114352666B (en) * | 2022-01-07 | 2023-09-22 | 天津大学 | Local resonance nonlinear metamaterial device with synergistic effect of forbidden band and particle damping |
| CN115030976A (en) * | 2022-05-13 | 2022-09-09 | 江苏科技大学 | Piston rod damping method of automobile damper based on phononic crystal |
| CN115030976B (en) * | 2022-05-13 | 2023-09-22 | 江苏科技大学 | Piston rod damping method of automobile damper based on phonon crystal |
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| CN102878235B (en) | 2014-06-11 |
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Granted publication date: 20140611 Termination date: 20190921 |