CN107061603A - A kind of novel magnetorheological fluid Multi-regulation vibration isolator - Google Patents
A kind of novel magnetorheological fluid Multi-regulation vibration isolator Download PDFInfo
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- CN107061603A CN107061603A CN201710168129.7A CN201710168129A CN107061603A CN 107061603 A CN107061603 A CN 107061603A CN 201710168129 A CN201710168129 A CN 201710168129A CN 107061603 A CN107061603 A CN 107061603A
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- damping
- magnetic
- vibration isolator
- flow liquid
- bypass
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
- F16F13/30—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions comprising means for varying fluid viscosity, e.g. of magnetic or electrorheological fluids
- F16F13/305—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions comprising means for varying fluid viscosity, e.g. of magnetic or electrorheological fluids magnetorheological
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention belongs to intellectual material vibration damping field, and in particular to a kind of novel magnetorheological fluid Multi-regulation vibration isolator.The present invention combines the Multi-regulation vibration isolator of bypass damping control, on the basis of the cylinder inner carrier flow of pore pattern of traditional magnetic rheological isolator, add damping bypass circulation structure, and conventional single-stage magnetic field working region is designed to multistage controllable magnetic field, the vibration isolator includes the piston cylinder of end cap, storage magnetic flow liquid above and below piston rod, elastic polyurethane element, piston rod.Under being not added with the function of current or during control system failure, magnetic flow liquid Multi-regulation vibration isolator becomes traditional bypass damper, and magnetic flow liquid flows out when piston rod is acted on from tube wall damping hole, equally can play damping effect with certain damping force.Multilayer electromagnet arrangement can realize it is individually controllable, the characteristics of change step by step so that vibration enhances vibration isolating effect by the process of hard formation soft formation hard formation.
Description
Technical field
The invention belongs to intellectual material vibration damping field, and in particular to a kind of novel magnetorheological fluid Multi-regulation vibration isolator.
Background technology
Vibration can cause a series of problems, such as vibration cause the fatigue damage of component of machine, release fracture failure, it is straight
Connect or cause equipment breakdown indirectly.Given this various resistances are used in space flight and aviation, military project firearms, automobile and other industries
Buddhist nun's device or vibration isolator carry out vibration and noise reducing.
Magnetic flow liquid is a kind of quickly, reversibly can be changed under magnetic fields by the Newtonian fluid of good fluidity
The intellectual material of high viscosity, the Bingham elasticoplastic bodys of lazy flow.Magnetic flow liquid can be quick with the change of external magnetic field
Ground changes oneself state (response time is short), and energy consumption is smaller, can export larger damping force.
The MR damper or vibration isolator used is invented at present, and most of is all to belong to piston hole gap flow pattern, this
MR damper is planted because damping force adjustable extent is narrow, magnetic fields region is small, magnetic flow liquid utilization rate is low and settlement stability
Property difference the shortcomings of so that the damping force range that can be provided is limited.
The content of the invention
The purpose of this patent is to provide the novel magnetorheological fluid Multi-regulation vibration isolator that a kind of combination bypasses damping control.
The object of the present invention is achieved like this：
A kind of novel magnetorheological fluid Multi-regulation vibration isolator, with reference to the Multi-regulation vibration isolator of bypass damping control, is being passed
On the basis of the cylinder inner carrier flow of pore pattern of magnetic rheological isolator of uniting, damping bypass circulation structure is added, and by conventional single-stage
Magnetic field working region is designed to multistage controllable magnetic field, and the vibration isolator includes piston rod, elastic polyurethane element, above and below piston rod
End cap, the piston cylinder for storing magnetic flow liquid；Piston cylinder disposed outside multilayer electromagnet, every layer of electromagnet interval is all designed with resistance
Buddhist nun loop, is provided with magnetorheological fluid valve on damping circuit, controls by magnetic field to be made in damping circuit by the magnetorheological fluid valve of bypass
With the magnetic flow liquid viscosity in region, the velocity of liquid assets of magnetic flow liquid is controlled, damping control is carried out.
The control section of magnetic rheological liquid damper is by acceleration transducer, displacement transducer, intelligent controller, program control direct current
Electric power generating composition, magnet exciting coil in piston cylinder external excitation coil and bypass magnetorheological fluid valve is automatically adjusted according to extraneous vibration
Size of current.
The beneficial effects of the present invention are：
Under being not added with the function of current or during control system failure, magnetic flow liquid Multi-regulation vibration isolator becomes traditional bypass
Damper, magnetic flow liquid flows out when piston rod is acted on from tube wall damping hole, equally can play vibration damping with certain damping force
Effect.Multilayer electromagnet arrangement can realize it is individually controllable, the characteristics of change step by step so that hard formation-soft formation-hard formation is passed through in vibration
Process, enhance vibration isolating effect.This magnetic flow liquid Multi-regulation vibration isolator not only subtracts from magnetic flow liquid shearing damp power angle
Shake, rheological behavior is produced under magnetic fields using magnetic flow liquid, its damping force can the moment increase in the Millisecond time, resistance
Piston movement is hindered to play effectiveness in vibration suppression；The mode of bypass adaptive damping circulation loop is also introduced, magnetorheological fluid sedimentation is solved the problems, such as
While, many one layer of damping outposts of the tax office add the utilization rate and vibration isolating effect of magnetic flow liquid.Vibration isolator uses external electromagnet
With bypass damping circuit, shorten damper length, available for boat diesel engine vibration damping, floating raft vibration isolation device etc. to space requirement compared with
High place.
Brief description of the drawings
Fig. 1 is the structural representation of magnetic flow liquid Multi-regulation vibration isolator；
Fig. 2 is external electromagnet top view；
Fig. 3 is work of electromagnet magnetic circuit schematic diagram.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
The New Type Vibration Isolator Using adds damping other on the basis of the cylinder inner carrier flow of pore pattern of traditional magnetic rheological isolator
Logical loop structure, and conventional single-stage magnetic field working region is designed to Multi-regulation magnetic field, it so not only can independently regulate and control magnetic
The bypass of every grade of rheology liquid and cylinder internal damping size, improve the utilization rate of magnetic flow liquid, also by circulating solution magnetic current
The problem of becoming liquid sedimentation stability.
A kind of novel intelligent vibration isolator based on magnetorheological fluid materials, described magnetic flow liquid Multi-regulation vibration isolator includes
Piston rod, elastic polyurethane element, end cap above and below piston rod, the piston cylinder for storing magnetic flow liquid.Piston cylinder disposed outside multilayer
Electromagnet, every layer of electromagnet interval is all designed with damping circuit, and magnetorheological fluid valve is provided with damping circuit, can pass through side
By the magnetic flow liquid viscosity in magnetic fields region in the magnetorheological fluid valve control damping circuit on road, and then control the stream of magnetic flow liquid
Logical speed, plays damping action.External multi-stage electromagnet purpose is to produce the uniform magnetic field for being horizontally through piston cylinder, so in work
There is horizontal uniform magnetic field inside plug tube so that each up-down vibration of piston rod all can be contacted first by the sticky of magnetic fields
Magnetic flow liquid, when moving downward, the magnetic flow liquid of lower working chamber is squeezed into damping hole, resistance of this part magnetic flow liquid from bypass
Buddhist nun loop flows through the supreme working chamber of magnetorheological fluid valve.When piston rod acting in opposition, the magnetic flow liquid of upper working chamber hinders through bypass
Buddhist nun flows back in loop lower working chamber, so not only many damping outposts of the tax office together, adds the utilization rate of magnetic flow liquid, can also solve
The problem of magnetic flow liquid vibration isolator is settled.
The control section of magnetic flow liquid Multi-regulation vibration isolator device is by acceleration transducer, displacement transducer, intelligent control
Device, programme-controlled dc power etc. are constituted, and can be achieved to automatically adjust piston cylinder external excitation coil and bypass magnetic according to extraneous vibration
The size of current of magnet exciting coil in rheology liquid valve so that magnetic rheological liquid damper has adaptivity.
Magnetic flow liquid Multi-regulation vibration isolator is further described referring to Fig. 1, Fig. 3.
The part name that sequence number is represented in figure：
1 piston upper end cover；2 elastic polyurethane elements；3 vibration isolator upper end covers；4 bypass damping pipelines；5 bypass magnetic flow liquids
Valve；6 piston cylinder damping holes；7 working chambers；8 piston rods；9 sealing rings；10 external electromagnets；11 piston cylinders；12 magnet exciting coils.
Fig. 1 is the structural representation of magnetic flow liquid Multi-regulation vibration isolator.It is characterized in that：Described magnetic flow liquid vibration isolation
Device is made up of working chamber and external control system two parts.Working chamber includes piston rod upper and lower side, bypass damping circuit, external
Multistage electromagnet；Control system part includes sensor, controller, dc source etc..
When piston rod moves up and down, the acceleration signal detected is transmitted to controller, controller warp by external sensor
Vibration analysis is crossed, control signal is produced according to required vibration damping demand, control electric current is applied to the external multistage electricity of working chamber
Magnetic flow liquid in magnetorheological fluid valve on magnet and bypass damping circuit, working chamber is produced rheology effect by transverse magnetic field effect
Should, its damping force is instantaneously significantly increased, and hinders piston rod movement, while a part of magnetic flow liquid passes through the damping hole of piston barrel
Bypass damping circuit is flowed into, flows decrease is acted on by MR valve, the magnetic rheological isolator is not only from damping force angle vibration damping, also
Flow velocity is slowed down by bypass loop and plays damping action.
The work magnetic circuit that Fig. 3 is internally formed when being the magnet exciting coil two ends loading current in magnetic flow liquid Multi-regulation device shows
It is intended to.When solenoid coil is passed through electric current, magnetic field passes through working chamber along magnetic conductor, and multistage electromagnet is formed in working chamber
The arranged distribution of hard formation-soft formation-hard formation so that vibration is constantly dissipated in multilayer damping structure.
Claims (2)
1. a kind of novel magnetorheological fluid Multi-regulation vibration isolator, with reference to the Multi-regulation vibration isolator of bypass damping control, in tradition
On the basis of the cylinder inner carrier flow of pore pattern of magnetic rheological isolator, damping bypass circulation structure is added, and by conventional single-stage magnetic
Field working region is designed to multistage controllable magnetic field, it is characterised in that：The vibration isolator include piston rod, elastic polyurethane element,
End cap, the piston cylinder of storage magnetic flow liquid above and below piston rod；Piston cylinder disposed outside multilayer electromagnet, every layer of electromagnet interval
Damping circuit is all designed with, magnetorheological fluid valve is provided with damping circuit, damping circuit is controlled by the magnetorheological fluid valve of bypass
In by magnetic fields region magnetic flow liquid viscosity, control magnetic flow liquid velocity of liquid assets, carry out damping control.
2. a kind of novel magnetorheological fluid Multi-regulation vibration isolator according to claim 1, it is characterised in that：Magnetic flow liquid hinders
The control section of Buddhist nun's device is made up of acceleration transducer, displacement transducer, intelligent controller, programme-controlled dc power, according to the external world
Vibration automatically adjust piston cylinder external excitation coil and bypass magnetorheological fluid valve in magnet exciting coil size of current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168129.7A CN107061603B (en) | 2017-03-21 | 2017-03-21 | A kind of magnetorheological fluid Multi-regulation vibration isolator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168129.7A CN107061603B (en) | 2017-03-21 | 2017-03-21 | A kind of magnetorheological fluid Multi-regulation vibration isolator |
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| CN107061603A true CN107061603A (en) | 2017-08-18 |
| CN107061603B CN107061603B (en) | 2019-02-01 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194573A (en) * | 2017-12-28 | 2018-06-22 | 江苏大学 | A kind of adaptive vibrating isolation system of multi-state and its control method |
| CN108506405A (en) * | 2018-03-29 | 2018-09-07 | 西安交通大学 | A kind of double rod flow-type MR dampers of twin-rotor housing |
| CN108843720A (en) * | 2018-06-20 | 2018-11-20 | 安徽工程大学 | Revolving type magnetic rheologic damper |
| CN110608261A (en) * | 2019-09-23 | 2019-12-24 | 安徽誉林汽车部件有限公司 | Hydraulic suspension |
| CN111219437A (en) * | 2020-01-20 | 2020-06-02 | 同济大学 | Magnetorheological particle damper capable of recycling energy |
| CN112460181A (en) * | 2020-11-30 | 2021-03-09 | 重庆理工大学 | Impact-resistant buffer based on permanent magnet excitation |
| CN113931965A (en) * | 2021-10-29 | 2022-01-14 | 北京小米移动软件有限公司 | Electromagnetic damper and printer |
| CN114867214A (en) * | 2022-06-02 | 2022-08-05 | 吉安满坤科技股份有限公司 | Vehicle-mounted printed circuit board processing method for preventing orifice from sinking |
| CN115163723A (en) * | 2022-08-11 | 2022-10-11 | 甘肃盛宏建筑工程有限责任公司 | Magnetorheological variable damping vibration attenuation energy dissipation device |
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| JPS61211546A (en) * | 1985-03-15 | 1986-09-19 | Nippon Denso Co Ltd | Magnetic fluid damper |
| EP1908985A1 (en) * | 2006-10-02 | 2008-04-09 | Delphi Technologies, Inc. | Twin-tube magnetorheological damper |
| WO2013059951A1 (en) * | 2011-10-27 | 2013-05-02 | Pontificia Universidad Catolica De Chile | Magnetorheological damper |
| CN103303087A (en) * | 2013-06-25 | 2013-09-18 | 吉林大学 | Control system for semi-active suspension frame of magnetorheological damper |
| CN205190627U (en) * | 2015-10-19 | 2016-04-27 | 苏州宝时得电动工具有限公司 | Vibration damper and have this vibration damper's power tool |
| CN105909722A (en) * | 2016-06-17 | 2016-08-31 | 江苏大学 | Damping-adjustable shock absorber using magnetorheological fluid |
| CN106168266A (en) * | 2016-08-11 | 2016-11-30 | 张广 | A kind of double rod by-pass type magneto-rheological vibration damper |
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2017
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| JPS61211546A (en) * | 1985-03-15 | 1986-09-19 | Nippon Denso Co Ltd | Magnetic fluid damper |
| EP1908985A1 (en) * | 2006-10-02 | 2008-04-09 | Delphi Technologies, Inc. | Twin-tube magnetorheological damper |
| WO2013059951A1 (en) * | 2011-10-27 | 2013-05-02 | Pontificia Universidad Catolica De Chile | Magnetorheological damper |
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| CN205190627U (en) * | 2015-10-19 | 2016-04-27 | 苏州宝时得电动工具有限公司 | Vibration damper and have this vibration damper's power tool |
| CN105909722A (en) * | 2016-06-17 | 2016-08-31 | 江苏大学 | Damping-adjustable shock absorber using magnetorheological fluid |
| CN106168266A (en) * | 2016-08-11 | 2016-11-30 | 张广 | A kind of double rod by-pass type magneto-rheological vibration damper |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194573A (en) * | 2017-12-28 | 2018-06-22 | 江苏大学 | A kind of adaptive vibrating isolation system of multi-state and its control method |
| CN108506405A (en) * | 2018-03-29 | 2018-09-07 | 西安交通大学 | A kind of double rod flow-type MR dampers of twin-rotor housing |
| CN108843720A (en) * | 2018-06-20 | 2018-11-20 | 安徽工程大学 | Revolving type magnetic rheologic damper |
| CN108843720B (en) * | 2018-06-20 | 2020-03-27 | 安徽工程大学 | Rotary magnetorheological damper |
| CN110608261B (en) * | 2019-09-23 | 2022-01-04 | 安徽誉林汽车部件有限公司 | Hydraulic suspension |
| CN110608261A (en) * | 2019-09-23 | 2019-12-24 | 安徽誉林汽车部件有限公司 | Hydraulic suspension |
| CN111219437A (en) * | 2020-01-20 | 2020-06-02 | 同济大学 | Magnetorheological particle damper capable of recycling energy |
| CN111219437B (en) * | 2020-01-20 | 2021-07-20 | 同济大学 | Magnetorheological particle damper capable of recycling energy |
| CN112460181A (en) * | 2020-11-30 | 2021-03-09 | 重庆理工大学 | Impact-resistant buffer based on permanent magnet excitation |
| CN113931965A (en) * | 2021-10-29 | 2022-01-14 | 北京小米移动软件有限公司 | Electromagnetic damper and printer |
| CN113931965B (en) * | 2021-10-29 | 2023-08-08 | 北京小米移动软件有限公司 | Electromagnetic damper and printer |
| CN114867214A (en) * | 2022-06-02 | 2022-08-05 | 吉安满坤科技股份有限公司 | Vehicle-mounted printed circuit board processing method for preventing orifice from sinking |
| CN114867214B (en) * | 2022-06-02 | 2023-06-09 | 吉安满坤科技股份有限公司 | Processing method of vehicle-mounted printed circuit board capable of preventing orifice from sinking |
| CN115163723A (en) * | 2022-08-11 | 2022-10-11 | 甘肃盛宏建筑工程有限责任公司 | Magnetorheological variable damping vibration attenuation energy dissipation device |
| CN115163723B (en) * | 2022-08-11 | 2023-06-09 | 甘肃盛宏建筑工程有限责任公司 | Magneto-rheological variable damping vibration attenuation energy consumption device |
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| CN107061603B (en) | 2019-02-01 |
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