CN106015436A - Order-variable permanent magnet rheological damper - Google Patents
Order-variable permanent magnet rheological damper Download PDFInfo
- Publication number
- CN106015436A CN106015436A CN201610518080.9A CN201610518080A CN106015436A CN 106015436 A CN106015436 A CN 106015436A CN 201610518080 A CN201610518080 A CN 201610518080A CN 106015436 A CN106015436 A CN 106015436A
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- China
- Prior art keywords
- inner cylinder
- cylinder tube
- magnetic
- permanent magnet
- rheological
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
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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
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/045—Fluids magnetorheological
Abstract
The invention relates to an order-variable permanent magnet rheological damper and belongs to the field of mechanical vibration engineering. The order-variable permanent magnet rheological damper is a non-power-supply damping vibration absorber. The on-off states of a permanent magnet circuit are controlled by changing the magnetic permeability and the axial effective length of an inner cylinder tube, so that the output damping force, changing along with the piston stroke, of the permanent magnet rheological damper is adjusted, order-variable output of coulomb damping force is achieved, preset damping force is obtained, and effective shock absorption is conducted. An inner cylinder tube section of the order-variable permanent magnet rheological damper is formed by fixedly connecting one section of magnetic-permeability material cylinder tube and two sections of non-magnetic-permeability material cylinder tubes, and a permanent magnet structure piston is a multilevel electromagnetic circuit. The permanent magnet rheological damper is free of energy consumption, simple in structural design and high in stability and has other shock absorption properties.
Description
Technical field
The present invention relates to a kind of magneto-rheological vibration control technology, be specially a kind of rank and become permanent magnetism stream
Mutative damp device.
Background technology
MR damper is to utilize the rheological behavior of magnetic flow liquid and the one developed most is sent out
It is suitable that the semi-automatic control device of exhibition prospect, its reliability having passive control concurrently and active control
Ying Xing, and compare that actively to control energy consumption the lowest, there is wide dynamic range, fast response time, energy
Consume low, frame for movement is simple, environmental robustness is strong, easily with the outstanding advantages such as microcomputer control combination.
MR damper has been widely used in vibration control system, as vehicle suspension system,
Aircraft landing gear system, building earthquake protection system, stayed-cable bridge protection system, medical rehabilitation
The fields such as system.
The intelligent vibration control system being made up of MR damper need to be equipped with power supply, sensor,
The external equipments such as controller.Power supply supplies on MR damper piston the most in the form of electric current
Magnet exciting coil, make magnet exciting coil produce magnetic field, and formed by between piston and inner wall of cylinder hinder
The magnetic circuit of Buddhist nun's passage, when piston movement forces magnetic flow liquid to flow through this damp channel, can pass through
Change the rheological yield stress of power supply size adjustment magnetic flow liquid, so magnetorheological by change
Liquid yield stress controls the Coulomb damping power that MR damper is corresponding, and final acquisition presets magnetic current
The damping force of mutative damp device, carries out effective vibration damping.Along with the extensive application of MR damper,
In the vibration applications occasion that some power supplys cannot arrive or power supply replacing is inconvenient, to a certain extent
Limit the application of MR damper.To this end, in recent years, a class self energizing magnetic current is occurred in that
Mutative damp device, it mainly uses the electricity energy harvester that external mechanical vibrations can be converted to electric energy
Power supply is replaced to meet the electrical energy demands of MR damper, but such self energizing magnetorheological damping
Device system can be relatively low owing to gathering, and applied environment is limited, and system stability is relatively low.
It addition, external equipment is in addition to power supply needed for MR damper, also need sensor, control
The relevant devices such as device, sensor test structural response, controller calculates control command, actual work
In Cheng Yingyong, equally, sensor and controller appearance can make whole vibration control system become phase
To complexity, and system stability is relatively low, and meanwhile, system design cost is of a relatively high.
Summary of the invention
The technical problem to be solved is: provide a kind of stable performance, and Coulomb damping
The magneto-rheological antivibrator of power rank change.
The technical solution adopted for the present invention to solve the technical problems is: a kind of rank become magneto-rheological
Antivibrator includes outer cylinder, inner cylinder tube one, inner cylinder tube two, inner cylinder tube three, piston rod, some
Permanent magnet, some magnetic inductive blocks, guider, magnetic flow liquid, sealing ring, end cap.Inner cylinder tube
One, inner cylinder tube two and inner cylinder tube three successively in be set in outer cylinder, and inner cylinder tube one, inner casing
Quantitative magnetic flow liquid, outer cylinder, inner cylinder tube one and inner cylinder tube are distributed in cylinder two and inner cylinder tube three
Three are non-magnet material, and such as aluminium alloy, macromolecular material etc., inner cylinder tube two is permeability magnetic material,
Such as electrical pure iron DT4.Some permanent magnets and some magnetic inductive blocks are all fixing with piston rod to be connected, its
In, some permanent magnets and some magnetic inductive blocks are the most spaced apart, constitute piston knot
Structure, wherein magnetic inductive block is positioned at the both ends of the surface of piston structure, and adjacent permanent magnets uses magnetic pole edge of the same name
Axis is reversely put and is put.In piston structure some permanent magnets respectively as magnetic source and and its
Magnetic inductive block and damping clearance and inner cylinder tube that both ends of the surface are connected form multistage magnetic circuit.This multiple permanent magnet
The conduction of magnetic circuit can be by changing the most effective of inner cylinder tube one, inner cylinder tube two and inner cylinder tube three
Length is adjusted.By the significant response distribution of lengths of inner cylinder tube, control in regulation permanent magnetic circuit
Rank processed become effective magnetic circuit on off operating mode of multistage magnetic circuit in magneto-rheological antivibrator, it is achieved change storehouse, rank
The output of human relations damping force, it is thus achieved that preset damping force, carry out effective vibration damping.
Piston structure with piston rod in cylinder barrel along axial-movement, when piston structure is positioned at inner cylinder tube
During one stage, due to inner cylinder tube one not magnetic conduction so that the multistage magnetic circuit on piston is all not turned on,
Magnetic flow liquid in corresponding damp channel shows the mobile performance of general fluid.Along with piston is tied
Structure constantly enters the inner cylinder tube two with magnetic conductivity, along with the increase of piston stroke, multistage magnetic circuit
It is activated successively so that the magnetic flow liquid in corresponding damp channel shows one under the action of a magnetic field
Fixed yield stress, the stepped increase of Coulomb damping power in corresponding magneto-rheological antivibrator；With
Reason, is constantly entering non-magnetic inner cylinder tube three, along with the increasing of piston stroke along with piston structure
Adding, multistage magnetic circuit is disconnected successively, the Coulomb damping power ladder in corresponding magneto-rheological antivibrator
Shape reduces.
The axial effective length of described inner cylinder tube two is not less than all permanent magnets and the axle of magnetic inductive block
To effective length sum, to improve the work efficiency of magneto-rheological antivibrator.
The present invention compares with prior art and is had the advantages that
These rank become magneto-rheological antivibrator power without power supply, by change non-magnetic inner cylinder tube and
Magnetic conduction inner cylinder tube axial length regulating piston structure multistage magnetic circuit on off operating mode, it is thus achieved that rank become coulomb
Damping force, and whole damping vibration attenuation control system is without the modules such as sensing and control, structure design
Simply, low cost, system application stability is of a relatively high.
Accompanying drawing explanation
The structure principle chart of Fig. 1 present invention
Outer cylinder 1 in figure, inner cylinder tube 1, inner cylinder tube 23, inner cylinder tube 34, piston rod 5,
Permanent magnet 6, magnetic inductive block 7, guider 8, magnetic flow liquid 9, sealing ring 10, end cap 11；
Fig. 2 magneto-rheological antivibrator Coulomb damping power and the output relation figure of piston stroke.
Detailed description of the invention
Fig. 1 is the structure principle chart of the present invention, and the present invention is that a kind of rank become magneto-rheological damping
Device, including outer cylinder 1, inner cylinder tube 1, inner cylinder tube 23, inner cylinder tube 34, piston rod
5, some permanent magnets 6, some magnetic inductive blocks 7, guider 8, magnetic flow liquid 9, sealing ring
10, end cap 11.Outer cylinder 1, inner cylinder tube 1 and inner cylinder tube 34 are aluminum alloy materials,
Inner cylinder tube 23 is electrical pure iron DT4, inner cylinder tube 1, inner cylinder tube 23 and inner cylinder tube 34
Quantitative magnetic flow liquid 9 is inside distributed.Piston rod 5 one end diameter of axle is less, is sequentially loaded into thereon
There is some magnetic inductive blocks 7 and some permanent magnets 6 of endoporus, form piston structure, if each adjacent
Dry permanent magnet 6 uses magnetic pole of the same name reversely to put along axis and put, and magnetic inductive block 7 is positioned at work
Plug structure two ends, in piston structure, some permanent magnets 6 as magnetic source and are connected with its both ends of the surface
Some magnetic inductive blocks 7 and damping clearance and inner cylinder tube form multistage magnetic circuit.Inner cylinder tube 1, inner casing
The axial effective length of cylinder 23 and inner cylinder tube 34 is equal with the effective length of piston structure.
Piston structure with piston rod in cylinder barrel along axial-movement, when piston structure is positioned at inner cylinder tube
During one 2 stage, the multistage magnetic circuit on piston is all not turned on, and corresponding magneto-rheological antivibrator is not subject to
Coulomb damping power effect.The inner cylinder tube 23 with magnetic conductivity is constantly entered along with piston structure,
Multistage magnetic circuit is activated successively so that the magnetic flow liquid in corresponding damp channel is under the action of a magnetic field
Showing certain yield stress, the Coulomb damping power that corresponding magneto-rheological antivibrator is subject to shows
For stepped increase；In like manner, constantly entering non-magnetic inner cylinder tube 34 along with piston structure,
Multistage magnetic circuit is disconnected successively, and the Coulomb damping power that corresponding magneto-rheological antivibrator is subject to is ladder
Shape reduces.Magneto-rheological antivibrator Coulomb damping power and output relation figure such as Fig. 2 of piston stroke
Shown in, it is known that its Coulomb damping power subtracts afterwards with stepped first the increasing of increase of piston structure stroke
Little.
Claims (5)
1. rank become a magneto-rheological antivibrator, including outer cylinder (1), inner cylinder tube one (2),
Inner cylinder tube two (3), inner cylinder tube three (4), piston rod (5), some permanent magnets (6), some
Magnetic inductive block (7), guider (8), magnetic flow liquid (9), sealing ring (10), end cap (11)；
Connection between above-mentioned each assembly:
Inner cylinder tube one (2), inner cylinder tube two (3) and inner cylinder tube three (4) are set in outer shell successively
In cylinder (1), some permanent magnets (6) and some magnetic inductive blocks (7) are all solid with piston rod (5)
Fixed connection, has a certain amount of in inner cylinder tube one (2), inner cylinder tube two (3) and inner cylinder tube three (4)
Magnetic flow liquid (9)；It is characterized in that:
Some magnetic inductive blocks (7) and some permanent magnets (6) are spaced on piston rod (5) successively
Distribution, form piston structure, multiple permanent magnet magnetic circuit can be formed, by change inner cylinder tube one (2),
Inner cylinder tube two (3) and the axial effective length of inner cylinder tube three (4), regulation permanent magnetic circuit response
The distribution of length, and then control the break-make shape of the rank change multistage effective magnetic circuit of magneto-rheological antivibrator
State, it is achieved rank become the output of Coulomb damping power, it is thus achieved that preset damping force.
A kind of rank the most according to claim 1 become magneto-rheological antivibrator, it is characterised in that
Described outer cylinder (1), inner cylinder tube one (2) and inner cylinder tube three (4) are non-magnet material,
Inner cylinder tube two (3) is permeability magnetic material.
A kind of rank the most according to claim 1 become magneto-rheological antivibrator, it is characterised in that
Described some magnetic inductive blocks (7) and some permanent magnets (6) are spaced on piston rod (5) successively
Distribution, forms piston structure, and the two ends of this piston structure are magnetic inductive block (7).
A kind of rank the most according to claim 1 become magneto-rheological antivibrator, it is characterised in that
Described some permanent magnets (6) and some magnetic inductive blocks (7) are spaced on piston rod (5) successively
Distribution, wherein adjacent permanent magnets (6) uses magnetic pole of the same name reversely to put along axis and arrange.
A kind of rank the most according to claim 1 become magneto-rheological antivibrator, it is characterised in that
The axial effective length of described inner cylinder tube two (3) is not less than all permanent magnets (6) and all leads
The effective length sum of magnetic piece (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518080.9A CN106015436B (en) | 2016-07-04 | 2016-07-04 | A kind of rank becomes magneto-rheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518080.9A CN106015436B (en) | 2016-07-04 | 2016-07-04 | A kind of rank becomes magneto-rheological damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015436A true CN106015436A (en) | 2016-10-12 |
| CN106015436B CN106015436B (en) | 2018-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610518080.9A Expired - Fee Related CN106015436B (en) | 2016-07-04 | 2016-07-04 | A kind of rank becomes magneto-rheological damper |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156281A (en) * | 2020-02-13 | 2020-05-15 | 重庆三峡学院 | Multistage adjustable axial extrusion type permanent magnet magnetorheological damper |
| CN112196108A (en) * | 2020-10-29 | 2021-01-08 | 东北电力大学 | Energy dissipation damper for wind-proof inhaul cable of air film building |
| CN113007262A (en) * | 2021-02-06 | 2021-06-22 | 广西科技大学 | Variable gap order-changing type magneto-rheological damper |
| CN113074208A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Combined type magneto-rheological vibration damper |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227927A (en) * | 2001-01-31 | 2002-08-14 | Tokico Ltd | Electromagnetic suspension equipment |
| JP2006057767A (en) * | 2004-08-20 | 2006-03-02 | Showa Corp | Mr fluid damper |
| CN1869470A (en) * | 2006-06-21 | 2006-11-29 | 天津大学 | Multistep assemblied anti-settle magnetic rheological damper |
| CN101749358A (en) * | 2010-02-24 | 2010-06-23 | 谭和平 | Damping force adjustable permanent magnet type magnetic current variable damper |
| CN102661353A (en) * | 2012-05-30 | 2012-09-12 | 石家庄铁道大学 | Magnetorheological damper with convenience in assembly and disassembly of coil component |
| CN103527702A (en) * | 2013-10-24 | 2014-01-22 | 合肥工业大学 | Magneto-rheological damper suitable for high-speed impact/low-speed vibration control system |
-
2016
- 2016-07-04 CN CN201610518080.9A patent/CN106015436B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227927A (en) * | 2001-01-31 | 2002-08-14 | Tokico Ltd | Electromagnetic suspension equipment |
| JP2006057767A (en) * | 2004-08-20 | 2006-03-02 | Showa Corp | Mr fluid damper |
| CN1869470A (en) * | 2006-06-21 | 2006-11-29 | 天津大学 | Multistep assemblied anti-settle magnetic rheological damper |
| CN101749358A (en) * | 2010-02-24 | 2010-06-23 | 谭和平 | Damping force adjustable permanent magnet type magnetic current variable damper |
| CN102661353A (en) * | 2012-05-30 | 2012-09-12 | 石家庄铁道大学 | Magnetorheological damper with convenience in assembly and disassembly of coil component |
| CN103527702A (en) * | 2013-10-24 | 2014-01-22 | 合肥工业大学 | Magneto-rheological damper suitable for high-speed impact/low-speed vibration control system |
Non-Patent Citations (1)
| Title |
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| 关新春等: "三阶段活塞式磁流变液减振器磁路的试验研究", 《机械设计与研究》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156281A (en) * | 2020-02-13 | 2020-05-15 | 重庆三峡学院 | Multistage adjustable axial extrusion type permanent magnet magnetorheological damper |
| CN111156281B (en) * | 2020-02-13 | 2021-06-04 | 重庆三峡学院 | Multistage adjustable axial extrusion type permanent magnet magnetorheological damper |
| CN112196108A (en) * | 2020-10-29 | 2021-01-08 | 东北电力大学 | Energy dissipation damper for wind-proof inhaul cable of air film building |
| CN113007262A (en) * | 2021-02-06 | 2021-06-22 | 广西科技大学 | Variable gap order-changing type magneto-rheological damper |
| CN113074208A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Combined type magneto-rheological vibration damper |
| CN113074208B (en) * | 2021-03-16 | 2022-03-15 | 广西科技大学 | Combined type magneto-rheological vibration damper |
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| Publication number | Publication date |
|---|---|
| CN106015436B (en) | 2018-01-02 |
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