CN109295844A - A kind of magnetorheological high damping elastomer single support of laminated type - Google Patents
A kind of magnetorheological high damping elastomer single support of laminated type Download PDFInfo
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- CN109295844A CN109295844A CN201811275995.7A CN201811275995A CN109295844A CN 109295844 A CN109295844 A CN 109295844A CN 201811275995 A CN201811275995 A CN 201811275995A CN 109295844 A CN109295844 A CN 109295844A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 34
- 238000013016 damping Methods 0.000 title claims abstract description 32
- 239000000806 elastomer Substances 0.000 title claims abstract description 25
- 230000005291 magnetic effect Effects 0.000 claims abstract description 74
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000000518 rheometry Methods 0.000 claims abstract description 28
- 238000003475 lamination Methods 0.000 claims abstract description 27
- 230000005284 excitation Effects 0.000 claims abstract description 12
- 238000004073 vulcanization Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 229920002379 silicone rubber Polymers 0.000 claims description 8
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 7
- 238000013329 compounding Methods 0.000 claims description 7
- 239000006249 magnetic particle Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 5
- 229940008099 dimethicone Drugs 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 5
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 5
- WKPSFPXMYGFAQW-UHFFFAOYSA-N iron;hydrate Chemical compound O.[Fe] WKPSFPXMYGFAQW-UHFFFAOYSA-N 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 150000002989 phenols Chemical class 0.000 claims description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000002955 isolation Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 7
- 239000003963 antioxidant agent Substances 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
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- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 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 2
- 239000002245 particle Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention belongs to civil engineering the controlling of vibration field, in particular to a kind of magnetorheological high damping elastomer single support of laminated type.Support includes top steel disk, and the lamination supporting mechanism, lead for retractable pencil and the excitation mechanism that lower part steel disk is arranged in of top steel disk is arranged in lower part steel disk；The lamination supporting mechanism is cylinder, and center is equipped with the circular hole passed through for lead for retractable pencil, and by magnetic rheology elastic body and steel plate, alternately vulcanization is formed lamination supporting mechanism；The excitation mechanism includes magnet exciting coil, bobbin winder bracket and iron core, and magnet exciting coil is wrapped on iron core by bobbin winder bracket；Round hole is set in the middle part of iron core, for positioning lead for retractable pencil.The present invention ensure that the positioning accuracy of total, improve the tightness of connection by the way that lead for retractable pencil to be fixed on to the middle part of lamination supporting mechanism and iron core；And when support occurs shear-deformable, entire lead for retractable pencil can lamination supporting mechanism and iron core it is forced it is lower occur shear-deformable, realize the effect of dissipation energy, the whole damping and rigidity for improving support.
Description
Technical field
The invention belongs to civil engineering the controlling of vibration technical field, in particular to a kind of magnetorheological high-damping of laminated type
Elastomer single support.
Background technique
Structures isolation effect refers to by the way that the Seismic Isolation of Isolation Layer that horizontal rigidity is far below superstructure is arranged in structure bottom, obstructs earthquake
Trend superstructure transmitting, to greatly reduce the earthquake response of superstructure.Seismic isolation technology not only damping definite conception, design
It is easy for installation, and seismic energy can be effectively absorbed, the horizontal earthquake action of structure is reduced, the antidetonation energy of building is improved
Power.Therefore, more obvious using the building advantage of seismic isolation technology compared with previous Anti-quake Architectural Structure Design method.Mesh
Before, structures isolation effect has been a kind of earthquake protection technology of mature.
Increase structure self-strength is usually relied in the Vibration Absorbing System Design of bridge or knot is improved using passive rubber support
The vibration isolation capability of structure.However, passive rubber support can not be adjusted under big load (such as plane vibration bursts, earthquake) effect
Itself lateral stiffness, the destructive displacement for promoting intensity structure is inhibited to generate under the effect of big horizontal shear force, can not also produce
The vibrational energy of raw bigger deformation dissipation moment, generally lacks good vibration isolation capability, becomes structure security system
In weakest link.
Currently, there is the report that MR damper is added to vibration absorber as bridge cable, but do not consider fundamentally
Bridge structure vibration isolation problems.Magnetic rheology elastic body (Magneto-rheologicalElastomers, MRE) is a kind of by micron
Grade ferromagnetic particle intersperses among the flexible solid fraction body formed in polymerisation medium (such as rubber), and the characteristics such as rigidity, damping can pass through
Externally-applied magnetic field regulates and controls, and has many advantages, such as that response is fast, good reversibility, controllable ability is strong, stability is good, it has also become earthquake-resistant structure subtracts
The new hot spot in calamity field has studied the house architectural structure vibration isolation technique based on MRE support if any scholar, uses for magnetorheological support
New direction has been explored in large-scale road and bridge building structure aseismatic.
Application No. is a kind of vertical rigidity changeable shock insulation branch is disclosed in 200810111674.3 Chinese invention patent application
, it is provided with the variation rigidity curved slab of taper in the support, can passively adjust the rigidity of shock isolating pedestal in the vertical direction.
Application No. is disclose a kind of self-adaptively regulating cutting in 200910062822.1 Chinese invention patent application
The laminated intelligent shock-isolation bearing of energy, the support are made of magnetic assembly, sensor and controller, and magnetic assembly is by round magnetorheological bullet
Property body and the round alternately laminated composition of magnetic conductive steel plate, driving magnetic field provided by external magnetic circuit.
Application No. is a kind of rigidity-variable vibration-isolating integration is disclosed in 201210224687.8 Chinese invention patent application
Intelligent support, the support are made of magnetic conduction subassembly, excitation mechanism and driving power, rigidity can bidirectional modulation, can be according to difference
Seismic wave different horizontal rigidities is provided for structure.
The rigidity of the changeable Seismic Isolation of Isolation Layer of foregoing invention patent, to vertically provide different rigidity and damping for structure
Power.However for all there is itself initial lateral stiffness, intensity, resistance under big load (such as plane vibration bursts, earthquake) effect
Buddhist nun is insufficient, and it is weaker to resist the lower damage capability generated of big horizontal shear force effect.
Therefore, it is adjustable to develop a kind of vertical rigidity that meets, especially increase initial configuration lateral stiffness, intensity, damping,
Big horizontal shear force action breaks down is resisted, the magnetorheological support of the biggish displacement of structure is reduced, for reducing bridge structure on ground
Vibratory response under shake has important practical significance.
Summary of the invention
Technical problem solved by the invention is to provide a kind of magnetorheological high damping elastomer single support of laminated type.
The technical solution for realizing the aim of the invention is as follows:
A kind of magnetorheological high damping elastomer single support of laminated type, including top steel disk, lower part steel disk are arranged on top
Lamination supporting mechanism, lead for retractable pencil and the excitation mechanism that lower part steel disk is set of steel disk；The lamination supporting mechanism is cylinder,
Center is equipped with the circular hole passed through for lead for retractable pencil, and by magnetic rheology elastic body and steel plate, alternately vulcanization is formed lamination supporting mechanism；It is described to encourage
Magnetic mechanism includes magnet exciting coil, bobbin winder bracket and iron core, and magnet exciting coil is wrapped on iron core by bobbin winder bracket；Setting circle in the middle part of iron core
Shape hole, for positioning lead for retractable pencil.
The magnet exciting coil is insulated copper wire, and the both ends of magnet exciting coil connect DC power supply, and the bobbin winder bracket is non-magnetic
Aluminium alloy.
The iron core, top steel disk and lower part steel disk are made of mild steel.
The diameter of the iron core is equal to the diameter of lamination supporting mechanism, and the diameter of lead for retractable pencil and the diameter proportion of iron core are 1:9.
The bobbin winder bracket is non-magnetic 6061 aluminium alloy；The diameter of the iron core is 0.92m.
The magnetic rheology elastic body matrix is silicon rubber, the ball shaped hydroxy iron powder that magnetic-particle is 3-8 μm of partial size, compounding agent
For Hinered phenols antioxidant, dimethicone and carbon black.
The silicon rubber is 704 silicon rubber.
The magnetic rheology elastic body is made with the following method:
(1) matrix, magnetic-particle and compounding agent are stirred evenly, obtains magnetic rheological body mixture；
(2) mixture merging vacuum oven is subjected to deaeration processing；
(3) it after deaeration processing, injects in the shaper of aluminum, is put into field generator for magnetic and carries out at pre- structuring
Reason；
(4) it will be equipped with the mold of magnetic rheology elastic body, vulcanize hour at room temperature to get silicon substrate magnetic rheology elastic body is arrived.
Proceeding magnetic field is 600-800mT in field generator for magnetic in the step (3), is handled time 1.5-2.5 hours.
Step (4) the room temperature vulcanization time is 20-30 hours.
Compared with prior art, the present invention its remarkable advantage:
(1) middle part of the invention by the way that lead for retractable pencil to be fixed on to lamination supporting mechanism and iron core, ensure that determining for total
Position precision, improves the tightness of connection；And when support occurs shear-deformable, entire lead for retractable pencil can be in lamination supporting mechanism and iron
The forced lower generation of core is shear-deformable, realizes the effect of dissipation energy, the whole damping and rigidity for improving support.
(2) alternately vulcanization is formed lamination supporting mechanism of the invention by magnetic rheology elastic body and steel plate, solves magnetic current
Become the lesser magnetic conductivity of elastomer itself, is difficult magnetically saturated feature, to enhance its magnetic induction intensity in magnetic field, mentions
Ascending branch seat entirety arrives this ability.
(3) iron core of the invention, top steel disk and lower part steel disk are made of mild steel, and mild steel has high magnetic permeability,
Bobbin winder bracket is selected as non-magnetic aluminium alloy, further improves the isolating affection of support.
(4) diameter of iron core is set as 0.92m, in not shadow by the way that the diameter ratio of lead for retractable pencil and iron core is set as 1:9 by the present invention
On the basis of ringing lamination supporting mechanism performance, significantly more efficient absorption seismic energy limits the horizontal distortion of support.
(5) magnetic rheology elastic body that the present invention passes through, by adding 3-8 μm of ball shaped hydroxy iron powder in silicon substrate, with
And the compounding agents such as Hinered phenols antioxidant, dimethicone and carbon black, make magnetic rheology elastic body obtained, it is horizontal to increase initial configuration
To rigidity, intensity, the performance of damping, achievees the effect that the magnetic rheology effect of reinforcing material, reduces structure larger displacement.
(6) there are two critical functions for support of the invention tool: when input current is zero, the laminated structure of the support still structure
Guarantee " fail-safe " at passive support；When to support input current, support has horizontal shear modulus, vertical extrusion die
Amount can produce the ability of significant change, so that its own parameter (rigidity, damping) is adjustable, have the energy for resisting impact load
Power achievees the effect that anti-vibration and shock, protects bridge structure safe.
Present invention is further described in detail with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the magnetorheological high damping elastomer single bearing structure illustration of laminated type of the present invention.
Description of symbols
The top 1- steel disk, 2- lamination supporting mechanism, 3- magnetic rheology elastic body, 4- steel plate, 5- excitation mechanism, 6- excitation wire
Circle, 7- bobbin winder bracket, 8- iron core, 9- lead for retractable pencil, the lower part 10- steel disk.
Specific embodiment
As shown in Figure 1, the magnetorheological high damping elastomer lead for retractable pencil support of laminated type provided by the invention include top steel disk 1,
Lower part steel disk 10, lamination supporting mechanism 2, lead for retractable pencil 9, excitation mechanism 5；Lamination supporting mechanism 2 and excitation mechanism 5 are connected to support
On the steel disk of upper and lower part；Wherein lamination support machine 2 vulcanizes lamination using high-damping magnetic rheology elastic body-steel plate；Excitation mechanism 5 is
It is wrapped on iron core 8 by magnet exciting coil 6 by bobbin winder bracket 7；Wherein magnet exciting coil 6 is made of insulated copper wire, and both ends connect
DC power supply；Iron core 8 is made of the mild steel of high magnetic permeability, the carrier as lamination support construction；It is tied in the middle part of conducting magnet core 8
Structure is hollow, for positioning lead for retractable pencil 9, guarantees the tightness of positioning accuracy and connection；Lead for retractable pencil 9 is fixed on iron core 8 and lamination support machine
The center of structure 2, when support occurs shear-deformable, entire lead for retractable pencil 9 can be in the forced lower generation of lamination supporting mechanism 2 and iron core 8
It is shear-deformable, realize the effect of dissipation energy, the whole damping and rigidity for improving support.Lead for retractable pencil 9 is not less than using purity
99.99% high-purity lead pig, the chemical component of lead should meet the regulation of GB/T 469.
Room temperature vulcanized silicone rubber of the magnetic rheology elastic body 3 as basis material, the partial size 3 as magnetic-particle~
8 μm of ball shaped hydroxy iron powder, compounding agent are that Hinered phenols antioxidant, dimethicone, carbon black and other compounding agents stir evenly
And magnetic rheological body mixture is made.After stirring, said mixture merging vacuum oven is subjected to deaeration processing, injects aluminium
In the shaper of system, then being put into field generator for magnetic to carry out pre- structuring processing i.e. proceeding magnetic field by experiment is 700mT, when
Between about 2 hours.Magnetic field will lead to granulated into chain or more complicated structure, and magnetic-particle will keep these structures after solidifying
It is constant, to obtain anisotropy.Then the mold for being equipped with magnetic rheology elastic body MRE is placed on vulcanization 24 hours at room temperature, i.e.,
Rubber silicon substrate MRE finished product can be prepared.The vulcanizing treatment refers to the raw rubber and vulcanizing agent generation made in sizing material under certain condition
Chemical reaction makes it become the macromolecular of space network by the macromolecules cross-linking of linear structure, makes to have sizing material
High intensity, high resiliency, high abrasion, anticorrosive etc. excellent performance.Room temperature vulcanized silicone rubber have water-fast, resistance to ozone, resistance to electric arc,
The advantages that Inverter fed motor and weather-resistant.It can be used in -60~200 DEG C of temperature ranges.
The characteristics of ball shaped hydroxy iron powder has magnetic conductivity low, and demagnetization is fast, remanent magnetism is few, particle size uniformity.
The Hinered phenols antioxidant can form reversible hydrogen bond with polymer matrix molecule, and high polymer is by extraneous vibration
When, hydrogen bond occurs fracture or weakens, and vibrational energy is changed into thermal energy, generates damping effect.
The dimethicone can make mixture be easy stirring, additional amount is directly related to solidify after elastomer
Hardness influences the performance of elastomer.
The carbon black is capable of the magnetic rheology effect of reinforcing material, the fissipation factor for reducing material, the thermostabilization for improving material
Property.
The iron core 8, upper and lower part steel disk material use but are not limited to the mild steel of high magnetic permeability and be made.
The lamination supporting mechanism 2 special construction mutually overlapping using steel plate 4 and magnetic rheology elastic body 3, solves
The lesser magnetic conductivity of magnetic rheology elastic body itself, is difficult magnetically saturated feature, so that it is strong to enhance its magnetic induction in magnetic field
Degree, promote support entirety arrives this ability.
The magnetic rheology elastic body 3 and steel plate 4 is circular ring shape, in alternately vulcanization lamination.
The steel disk up and down, iron core use but are not limited to the mild steel of high magnetic permeability and be made, and size should meet support
The requirement of the bearing capacity upper limit, pole orientation is required according to susceptor design and the DC power supply cathode and anode directions of magnet exciting coil 6 determine.
A kind of the size of each part of the magnetorheological high damping elastomer single support of laminated type, including top steel disk 1
With the diameter and thickness of lower part steel disk 10, the number of plies, internal diameter, outer diameter and the thickness of magnetic rheology elastic body 3, the number of plies of magnetic conductive steel plate 4,
Internal diameter, outer diameter and thickness, internal diameter, outer diameter and the number of turns of magnet exciting coil, the parameters such as size of lead for retractable pencil 9 need to be according to the dynamics of structure
The calculating such as parameter, the rigidity of quasi- control and dampening range, quasi- frequency, the performance of magnetic rheology elastic body of seismic wave born are asked
?.
A kind of part design size of the magnetorheological high damping elastomer single support of the laminated type.Design size reference
Specification " highway bridge lead rubber bearing " (JT/T 822-2011) Y4Q920X243G1.2, pedestal configurations design set by
The magnetorheological support of meter is used for railroad bridge, and diameter about 0.8m-1m, upper and lower steel disk 1170*1170*23, iron core diameter is equal to branch
Seat diameter=0.92m, iron core 200mm height.
Steel plate thickness 3mm, steel plate use the steel plate not less than Q235A performance, laminated rubber thickness tr=20mm, 9 layers of rubber (n
=9), rubber layer diameter d0=0.92m, lead core diameter dp, take dp=110mm.
Bobbin winder bracket 7 uses non-magnetic 6061 aluminium alloy, the internal diameter 870mm of bobbin winder bracket, outer diameter 1054mm, height 200mm.Line
Circle: copper enameled wire loop, line footpath 1mm.
A kind of magnetorheological high damping elastomer single support of laminated type by be stacked alternately together, shape it is identical simultaneously
The integral magnetic rheology elastic body 3 of vulcanizing treatment, magnetic conductive steel plate 4, and separated with magnetic rheology elastic body, be wrapped in magnetic conduction iron
Coil windings composition on core, these components thus form a complete closed magnetic and return between the steel disk of upper and lower part
Road, closed circuit are shown in Fig. 1 dotted portion.When encountering situations such as happening suddenly earthquake, which can receive signal by sensor, lead to
The power for crossing signal judges earthquake size, to change the electric current of coil windings to change the magnetic flux in magnetic circuit；The magnetic of variation
When flux is perpendicular through magnetic rheology elastic body, the storage modulus and fissipation factor of material can change, so as to according to outside
Respond the cutting performance of this support of adaptively changing.
Claims (10)
1. a kind of magnetorheological high damping elastomer single support of laminated type, which is characterized in that including top steel disk (1), lower part steel
The excitation in the lamination supporting mechanism (2) of top steel disk (1), lead for retractable pencil (9) and setting in lower part steel disk (10) is arranged in disk (10)
Mechanism (5)；The lamination supporting mechanism (2) is cylinder, and center is equipped with the circular hole passed through for lead for retractable pencil (9), lamination supporting mechanism
(2) by magnetic rheology elastic body (3) and steel plate (4), alternately vulcanization is formed；The excitation mechanism (5) includes magnet exciting coil (6), coiling
Frame (7) and iron core (8), magnet exciting coil (6) are wrapped on iron core (8) by bobbin winder bracket (7)；Round hole is set in the middle part of iron core (8),
For positioning lead for retractable pencil (9).
2. the magnetorheological high damping elastomer single support of laminated type according to claim 1, which is characterized in that the excitation
Coil (6) is insulated copper wire, and the both ends of magnet exciting coil (6) connect DC power supply, and the bobbin winder bracket (7) is non-magnetic aluminium alloy.
3. the magnetorheological high damping elastomer single support of laminated type according to claim 2, which is characterized in that the iron core
(8), top steel disk (1) and lower part steel disk (10) are made of mild steel.
4. the magnetorheological high damping elastomer single support of laminated type according to claim 3, which is characterized in that the iron core
(8) diameter is equal to the diameter of lamination supporting mechanism (2), and the diameter of lead for retractable pencil (9) and the diameter proportion of iron core (8) are 1:9.
5. the magnetorheological high damping elastomer single support of laminated type according to claim 4, which is characterized in that the coiling
Frame is non-magnetic 6061 aluminium alloy；The diameter of the iron core (8) is 0.92m.
6. the magnetorheological high damping elastomer single support of laminated type according to claim 1, which is characterized in that the magnetic current
Become elastomer (3) matrix as silicon rubber, the ball shaped hydroxy iron powder that magnetic-particle is 3-8 μm of partial size, compounding agent resists for Hinered phenols
Oxygen agent, dimethicone and carbon black.
7. the magnetorheological high damping elastomer single support of laminated type according to claim 6, which is characterized in that the silicon rubber
Glue is 704 silicon rubber.
8. according to the magnetorheological high damping elastomer single support of the described in any item laminated types of claim 6-7, which is characterized in that
The magnetic rheology elastic body (3) is made with the following method:
(1) matrix, magnetic-particle and compounding agent are stirred evenly, obtains magnetic rheological body mixture；
(2) mixture merging vacuum oven is subjected to deaeration processing；
(3) it after deaeration processing, injects in the shaper of aluminum, is put into field generator for magnetic and carries out pre- structuring processing；
(4) it will be equipped with the mold of magnetic rheology elastic body, vulcanize hour at room temperature to get silicon substrate magnetic rheology elastic body is arrived.
9. according to the magnetorheological high damping elastomer single support of the described in any item laminated types of claim 6, which is characterized in that institute
Stating in step (3) proceeding magnetic field in field generator for magnetic is 600-800mT, is handled time 1.5-2.5 hours.
10. according to the magnetorheological high damping elastomer single support of the described in any item laminated types of claim 6, which is characterized in that
Step (4) the room temperature vulcanization time is 20-30 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275995.7A CN109295844B (en) | 2018-10-30 | 2018-10-30 | Laminated magnetorheological high-damping elastomer single-core support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275995.7A CN109295844B (en) | 2018-10-30 | 2018-10-30 | Laminated magnetorheological high-damping elastomer single-core support |
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| Publication Number | Publication Date |
|---|---|
| CN109295844A true CN109295844A (en) | 2019-02-01 |
| CN109295844B CN109295844B (en) | 2024-08-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877229A (en) * | 2019-04-23 | 2019-06-14 | 上海应用技术大学 | Controllable damping Drawing Die based on magnetic rheology elastic body buffer unit |
| CN109899443A (en) * | 2019-04-15 | 2019-06-18 | 南京林业大学 | A kind of vibration absorber based on magnetic rheology elastic body |
| CN109972667A (en) * | 2019-03-20 | 2019-07-05 | 南京理工大学 | A kind of composite-structure magnetorheological elastomer negative stiffness isolator |
| CN110700084A (en) * | 2019-09-09 | 2020-01-17 | 扬州大学 | Laminated magneto-rheological vibration isolation support based on transmission lifting device |
| CN111946127A (en) * | 2020-08-19 | 2020-11-17 | 天津城建大学 | Magnetorheological elastomer intelligent shock insulation support with high vertical bearing capacity |
| CN114017468A (en) * | 2021-11-16 | 2022-02-08 | 南京理工大学 | Combined type magneto-rheological elastomer vibration isolator capable of realizing multidirectional vibration control |
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