CN103225666B - Variable-stiffness variable-damping vibration absorber based on characteristics of magneto-rheological fluid - Google Patents
Variable-stiffness variable-damping vibration absorber based on characteristics of magneto-rheological fluid Download PDFInfo
- Publication number
- CN103225666B CN103225666B CN201310112070.1A CN201310112070A CN103225666B CN 103225666 B CN103225666 B CN 103225666B CN 201310112070 A CN201310112070 A CN 201310112070A CN 103225666 B CN103225666 B CN 103225666B
- Authority
- CN
- China
- Prior art keywords
- vibration
- shelf
- base
- cylinder
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a variable-stiffness variable-damping vibration absorber based on characteristics of a magneto-rheological fluid. According to the vibration absorber, the characteristics of the magneto-rheological fluid are changed through vibration data detected by a vibrating sensor, therefore, the stiffness and the damping of the vibration absorber are changed to realize the adjustment of natural frequency of the vibration absorber, and a best vibration absorption effect is achieved. The vibration absorber is good in vibration absorption effect, and can perform a good vibration absorption function under a fixed vibration frequency; the natural frequency of the vibration absorber is adjustable and can be adjusted according to different excitation frequencies so as to achieve the best vibration absorption effect; during a vibration process, the natural frequency of the vibration absorber is adjusted continuously through the detection of the sensor, and real-time tracking is achieved to ensure that the best vibration absorption effect is maintained during the vibration process; due to semi-active control, the consumed outside energy is little; the vibration absorber is simple in structure, easy to achieve and high in feasibility; and combination use is facilitated, and a plurality of vibration absorbers can be combined and used for multi-frequency vibration.
Description
Technical field
The present invention relates to a kind of bump leveller, particularly relate to a kind of variation rigidity mutative damp bump leveller based on magnetic flow liquid characteristic.
Background technique
In daily life and work, ubiquity vibration.In life, the electric fan be rotating that the crown hangs, the locomotive etc. travelling the automobile on highway and run in orbit; In work, the truss etc. swung with the wind in the lathe of operative workpiece, building site in factory.And the existence of vibration causes impact to the life of people, even injure the life safety of people, so reduce and even eliminate the problem vibrated and become people and constantly study.
Nowadays the vibration damper of people's invention is based on Three models: Passive Control pattern, Active Control Mode, semi-active control pattern.Absorbing is one of form of vibration damping.Based on the bump leveller of Passive Control pattern, it is most widely used, and structure is simple, and cost is low, but the natural frequency of its bump leveller is non-adjustable, when identical with excited frequency or when differing very little, can reach good effectiveness in vibration suppression; When its natural frequency differs larger with excited frequency, then effectiveness in vibration suppression is very poor can be even that vibration worsens.Based on the bump leveller of Active Control Mode, its bump leveller carrys out Real-time Collection vibrating object information by sensor directly to provide power to offset the power vibrated and produce, but required response is fast, and have extra power support, cost compare is high.The bump leveller that half active mode controls, its bump leveller carrys out Real-time Collection vibrating object information to change the natural frequency of self by sensor, thus without the need to consuming a lot of energy and good effectiveness in vibration suppression can being reached.
Along with the development of science and technology, traditional, that natural frequency is narrow bump leveller can not be satisfied the demand, and the development of bump leveller is towards wideband, multifrequency development.A kind of bump leveller with many natural frequencys designed by patent NO.201120197689.3, its bump leveller base is installed the different latch plate of multiple effective length and the mass block that erection weight is different on latch plate, the position of mass block on latch plate is adjustable, therefore its natural frequency can be expanded, its shortcoming regulates its natural frequency process loaded down with trivial details, and can not regulate in real time in vibration processes; The outside resources consumed is comparatively large, and owing to having used permanent magnet, its use has narrow limitation; ACTIVE CONTROL needs to provide external energy and its control more complicated for active force, and require fast response time, cost compare is high.
Magnetic flow liquid is as a kind of novel intellectual material, its performance changes along with the change in magnetic field in its rheological properties---when without during magnetic field, it shows as rheology, but along with the enhancing in magnetic field, its rheological properties changes, and trends towards solid-state gradually.Due to this performance, it is used to design damper, clutch and valve etc.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of variation rigidity mutative damp bump leveller based on magnetic flow liquid characteristic.
The present invention is achieved by the following technical solutions:
A kind of variation rigidity mutative damp bump leveller based on magnetic flow liquid characteristic, include vibration base, housing, absorbing mass block, two springs, shelf and trident pole, described housing tip opening, housing bottom is fixedly connected with described vibration base top by screw, the left and right sides of enclosure interior bottom surface is respectively equipped with base, oil cylinder is respectively equipped with above base, oil cylinder is provided with piston rod, the inside of two described springs is respectively equipped with guiding device, the top of spring and bottom are fixed with top board and base plate respectively, the top of two described piston rods is fixedly connected with the base plate of two springs respectively, the top board of two springs is connected with two bars of described trident pole respectively by pin, be hollow bottom described shelf, hollow space both sides have oval-shaped groove, the push rod of described trident pole is connected with shelf by pin, described shelf is positioned at the top of housing, described absorbing mass block is fixedly connected with shelf by screw, also a left side is provided with between inside two base of described housing, right belt piston cylinder and a magnetic rheological valve, with piston in the middle of described band piston cylinder, the mouth cylinder of the piston left and right sides is respectively filler opening and liquid entering hole, the oil outlet of two described oil cylinders connects left respectively by oil pipe, the filler opening of right belt piston cylinder, described magnetic rheological valve inside is full of magnetic flow liquid, the cylinder body outer felt of magnetic rheological valve is wound with hot-wire coil, produce magnetic field, the outlet of the left and right sides of magnetic rheological valve by connecting tube respectively with a left side, the liquid entering hole of right belt piston cylinder connects, vibration transducer is separately installed with above described vibration base and shelf, two vibration transducers are all connected with a data Collection & Processing System, described hot-wire coil is connected with a power amplifier, described data Collection & Processing System is all connected with controller with power amplifier.
Described magnetic rheological valve is the cylinder body that inside is full of magnetic flow liquid, and two ends, cylinder body left and right are provided with connecting tube joint.
Present invention uses the flow characteristics of magnetic flow liquid to control damping and the rigidity of bump leveller system, thus change the natural frequency of bump leveller.In the housing, magnetic rheological valve the right and left respectively connected one group of vibration insulating system be composed in series by spring and oil cylinder.When the obstructed electric current of coil, magnetic rheological valve does not have magnetic field, and magnetic flow liquid presents flowing state, and the rigidity of the vibration insulating system on magnetic rheological valve both sides can regard series connection as; When coil electricity is saturated, the magnetic flow liquid in magnetic rheological valve shows solid-state character, and the liquid on both sides no longer flows, then the rigidity of the vibration insulating system on magnetic rheological valve both sides can regard parallel connection as.When size of current is between 0 value and saturation state, the rigidity of its system is between series connection and parallel connection.Further, institute's galvanization size affects the flow characteristics of magnetic flow liquid, have also been changed the damping of system with this.
Advantage of the present invention is: shock attenuation result of the present invention is good, under a fixing vibration frequency, can play a good damping effect; Bump leveller natural frequency is adjustable, can regulate the natural frequency of self, to reach best effectiveness in vibration suppression according to different excited frequencies; In the process of vibration, constantly adjusted the natural frequency of oneself by the detection of sensor, reach real-time tracking, to ensure to keep best effectiveness in vibration suppression in vibration processes always; Owing to being semi-active control, therefore the outside energy consumed is few; Structure is simple, is easy to realize, and feasibility is high; Be easy to combinationally use, multiple bump leveller can be combinationally used for multifrequency vibration.
Accompanying drawing explanation
Fig. 1 is principle of the invention schematic diagram.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the cross-sectional schematic of magnetic rheological valve in the present invention and other chain structure part.
Embodiment
As Fig. 1, 2, shown in 3, a kind of variation rigidity mutative damp bump leveller based on magnetic flow liquid characteristic, include vibration base 1, housing 2, absorbing mass block 3, two springs 4, shelf 5 and trident pole 6, described housing 2 open-topped, housing 2 bottom is fixedly connected with described vibration base 1 top by screw, the left and right sides of housing 2 inner bottom surface is respectively equipped with base 7, oil cylinder 8 is respectively equipped with above base 7, oil cylinder 8 is provided with piston rod 9, the inside of two described springs 4 is respectively equipped with guiding device 10, the top of spring 4 and bottom are fixed with top board 11 and base plate 12 respectively, the top of two described piston rods 9 is fixedly connected with the base plate 12 of two springs 4 respectively, the top board 11 of two springs 4 is connected with two bars of described trident pole 6 respectively by pin, be hollow bottom described shelf 5, hollow space both sides have oval-shaped groove, the push rod of described trident pole 6 is connected with shelf 5 by pin, described shelf 5 is positioned at the top of housing 2, described absorbing mass block 3 is fixedly connected with shelf 5 by screw, also a left side is provided with between inside two base of described housing 2, right belt piston cylinder 13 and a magnetic rheological valve 14, with piston in the middle of described band piston cylinder 13, the mouth cylinder of the piston left and right sides is respectively filler opening and liquid entering hole, the oil outlet of two described oil cylinders 8 connects a left side respectively by oil pipe 15, the filler opening of right belt piston cylinder 13, described magnetic rheological valve 14 inside is full of magnetic flow liquid 16, the cylinder body outer felt of magnetic rheological valve 14 is wound with hot-wire coil 17, produce magnetic field, the outlet of the left and right sides of magnetic rheological valve 14 by connecting tube 18 respectively with a left side, the liquid entering hole of right belt piston cylinder 13 connects, vibration transducer 19 is separately installed with above described vibration base 1 and shelf 5, two vibration transducers 19 are all connected with a data Collection & Processing System 20, described hot-wire coil 17 is connected with a power amplifier 21, described data Collection & Processing System 20 is all connected with controller 22 with power amplifier 21.
Described magnetic rheological valve 14 is the inner cylinder body being full of magnetic flow liquid 16, and two ends, cylinder body left and right are provided with connecting tube joint.
When vibrate base 1 be subject to impressed frequency start to vibrate time, due to the effect of inertia, absorbing mass block 3 and shelf 5 vibrate thereupon together, the trident pole 6 that shelf 5 connects is slided in the groove of shelf 5, another two poles of trident pole 6 then swing up and down, compression and tension spring 4, and then power is applied to oil cylinder 8, then the magnetic flow liquid about 16 in magnetic rheological valve 14 flows.
When not applying electric current, be zero by the magnetic field of magnetic rheological valve 14.Magnetic flow liquid 16 shows its general mobile performance, then this bump leveller system can regard the shock absorption system that a rigidity is connected by two springs 4, damping is subject to oil cylinder 8 and magnetic flow liquid 16 joint effect as.
When passing to magnetic flow liquid 16 saturation current, magnetic flow liquid 16 shows the state of its solidification, the liquid at magnetic rheological valve 14 two ends is without mutual flowing, and now bump leveller system can regard the shock absorption system that a rigidity is in parallel by two springs 4, damping is subject to oil cylinder 8 and magnetic flow liquid 16 joint effect as.
When applied size of current is between 0 value and saturation value, its rigidity is between series connection and parallel connection.
Along with the change of magnetic flow liquid flow characteristic, the damping of shock absorption system also changes.
Because natural frequency is relevant with rigidity and quality, therefore when absorbing mass block 3 is constant, change the natural frequency that rigidity also just changes shock absorption system.
In actual applications,
(1) vibration frequency of additional excited frequency and absorbing mass block 3 can be measured respectively by vibration transducer 19, by the comparative analysis of data collection and transmission 20, export control signal, hot-wire coil 17 is acted on through power amplifier 21, to change rigidity and the damping of shock absorption system, thus change natural frequency.In the process of constantly vibration, constantly compare, real-time reaches best effectiveness in vibration suppression.
(2) in the vibration of fixing forcing frequency, can regulate the natural frequency of absorbing matter system in advance, make it reach optimum efficiency when absorbing.
Claims (2)
1. the variation rigidity mutative damp bump leveller based on magnetic flow liquid characteristic, it is characterized in that: include vibration base, housing, absorbing mass block, two springs, shelf and trident pole, described housing tip opening, housing bottom is fixedly connected with described vibration base top by screw, the left and right sides of enclosure interior bottom surface is respectively equipped with base, oil cylinder is respectively equipped with above base, oil cylinder is provided with piston rod, the inside of two described springs is respectively equipped with guiding device, the top of spring and bottom are fixed with top board and base plate respectively, the top of two described piston rods is fixedly connected with the base plate of two springs respectively, the top board of two springs is connected with two bars of described trident pole respectively by pin, be hollow bottom described shelf, hollow space both sides have oval-shaped groove, the push rod of described trident pole is connected with shelf by pin, described shelf is positioned at the top of housing, described absorbing mass block is fixedly connected with shelf by screw, also a left side is provided with between inside two base of described housing, right belt piston cylinder and a magnetic rheological valve, with piston in the middle of described band piston cylinder, the mouth cylinder of the piston left and right sides is respectively filler opening and liquid entering hole, the oil outlet of two described oil cylinders connects left respectively by oil pipe, the filler opening of right belt piston cylinder, described magnetic rheological valve inside is full of magnetic flow liquid, the cylinder body outer felt of magnetic rheological valve is wound with hot-wire coil, the outlet of the left and right sides of magnetic rheological valve by connecting tube respectively with a left side, the liquid entering hole of right belt piston cylinder connects, vibration transducer is separately installed with above described vibration base and shelf, two vibration transducers are all connected with a data Collection & Processing System, described hot-wire coil is connected with a power amplifier, described data Collection & Processing System is all connected with controller with power amplifier.
2. the variation rigidity mutative damp bump leveller based on magnetic flow liquid characteristic according to claim 1, it is characterized in that: described magnetic rheological valve is the cylinder body that inside is full of magnetic flow liquid, two ends, cylinder body left and right are provided with connecting tube joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112070.1A CN103225666B (en) | 2013-04-02 | 2013-04-02 | Variable-stiffness variable-damping vibration absorber based on characteristics of magneto-rheological fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112070.1A CN103225666B (en) | 2013-04-02 | 2013-04-02 | Variable-stiffness variable-damping vibration absorber based on characteristics of magneto-rheological fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103225666A CN103225666A (en) | 2013-07-31 |
| CN103225666B true CN103225666B (en) | 2015-07-22 |
Family
ID=48836236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310112070.1A Active CN103225666B (en) | 2013-04-02 | 2013-04-02 | Variable-stiffness variable-damping vibration absorber based on characteristics of magneto-rheological fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103225666B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547908A (en) * | 2018-04-17 | 2018-09-18 | 安徽卓特信息技术有限公司 | A kind of interior wound MR damper of multi-cylinder cylinder linkage |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023736B (en) * | 2017-04-28 | 2019-05-03 | 拓卡奔马机电科技有限公司 | A kind of stiffness-adjustable rack foot pad |
| CN108547899B (en) * | 2018-05-22 | 2023-06-27 | 中国船舶重工集团公司第七一九研究所 | Limit protector |
| CN109459154B (en) * | 2018-11-09 | 2020-11-27 | 合肥亿珀电子材料有限公司 | Sealed temperature sensor |
| CN109835160B (en) * | 2019-04-01 | 2024-04-26 | 安徽华菱汽车有限公司 | Vibration reduction system, vehicle and vibration reduction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004028294A (en) * | 2002-06-28 | 2004-01-29 | Toyo Tire & Rubber Co Ltd | Liquid sealing type vibration control device |
| CN2752541Y (en) * | 2004-12-24 | 2006-01-18 | 河北科技大学 | Magnetic flow variable liquid damper |
| CN101446117A (en) * | 2008-12-30 | 2009-06-03 | 河海大学 | High-energy consumption self-decoupling magnetorheological damper |
| CN201786985U (en) * | 2010-09-26 | 2011-04-06 | 华侨大学 | Magneto-rheological damper with double-coil |
| CN102128234A (en) * | 2011-03-09 | 2011-07-20 | 哈尔滨工程大学 | Hydraulic driving vibration isolator based on piezoelectric actuation |
| EP2113681B1 (en) * | 2008-05-01 | 2011-10-12 | BWI Company Limited S.A. | Method for controlling an MR-fluid hydraulic mount connected to a vehicle engine |
| CN203285901U (en) * | 2013-04-02 | 2013-11-13 | 合肥工业大学 | Variable-stiffness variable-damping bump leveler based on magneto-rheological fluid characteristics |
-
2013
- 2013-04-02 CN CN201310112070.1A patent/CN103225666B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004028294A (en) * | 2002-06-28 | 2004-01-29 | Toyo Tire & Rubber Co Ltd | Liquid sealing type vibration control device |
| CN2752541Y (en) * | 2004-12-24 | 2006-01-18 | 河北科技大学 | Magnetic flow variable liquid damper |
| EP2113681B1 (en) * | 2008-05-01 | 2011-10-12 | BWI Company Limited S.A. | Method for controlling an MR-fluid hydraulic mount connected to a vehicle engine |
| CN101446117A (en) * | 2008-12-30 | 2009-06-03 | 河海大学 | High-energy consumption self-decoupling magnetorheological damper |
| CN201786985U (en) * | 2010-09-26 | 2011-04-06 | 华侨大学 | Magneto-rheological damper with double-coil |
| CN102128234A (en) * | 2011-03-09 | 2011-07-20 | 哈尔滨工程大学 | Hydraulic driving vibration isolator based on piezoelectric actuation |
| CN203285901U (en) * | 2013-04-02 | 2013-11-13 | 合肥工业大学 | Variable-stiffness variable-damping bump leveler based on magneto-rheological fluid characteristics |
Non-Patent Citations (3)
| Title |
|---|
| 磁流变弹性体及其半主动吸振技术;龚兴龙等;《中国科学技术大学学报》;20071031;第37卷(第10期);全文 * |
| 磁流变弹性体自调谐式吸振器及其优化控制;王莲花等;《实验力学》;20070831;第22卷(第3-4期);全文 * |
| 磁流变弹性体调频吸振器的研制;邓华夏等;《功能材料》;20060531;第37卷(第5期);全文 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547908A (en) * | 2018-04-17 | 2018-09-18 | 安徽卓特信息技术有限公司 | A kind of interior wound MR damper of multi-cylinder cylinder linkage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103225666A (en) | 2013-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103225666B (en) | Variable-stiffness variable-damping vibration absorber based on characteristics of magneto-rheological fluid | |
| CN203285901U (en) | Variable-stiffness variable-damping bump leveler based on magneto-rheological fluid characteristics | |
| CN100507305C (en) | Magnetic flowing deformation elastomer frequency shift type attenuator and control method | |
| CN206582279U (en) | Powered shock absorption device, blade and wind power generating set for wind power generating set | |
| CN201875042U (en) | Self-induction type current variable shock absorption damper | |
| CN108343171A (en) | Electromagnetic resonance is used to matter damper | |
| CN101968096A (en) | Self-driving magnetorheological damper | |
| CN109707782A (en) | A kind of magnetic-controlled damper having high frequency anti-impact energy dissipation behavior | |
| CN103615487B (en) | The cantilever beam type dynamic vibration absorber that a kind of rigidity is adjustable | |
| CN107338885A (en) | A kind of power transmission tower shock absorber and its preparation and application | |
| CN109951044A (en) | A kind of electromagnetic energy collector based on dynamic vibration absorber | |
| CN206376390U (en) | A kind of three-dimensional multiple tuned mass dampers damping control device | |
| CN112580227A (en) | Horizontal shock absorber and method for determining medium mass of damping liquid in horizontal shock absorber | |
| CN109356426B (en) | Tuned mass damper | |
| CN209293533U (en) | Tuned mass damper | |
| CN204784368U (en) | Bumper shock absorber and electricity generation formula bumper shock absorber | |
| CN104405819A (en) | Intelligent wire rope vibration isolator | |
| CN203641362U (en) | Rigidity-adjustable cantilever-beam-type power vibration absorber | |
| CN205153174U (en) | Viscous damper | |
| CN112576676B (en) | Horizontal vibration damper | |
| CN208089848U (en) | Drum type brake electric eddy-current damping device and bridge vibration-proof structure | |
| CN104723823A (en) | Resonant frequency autotracking giant magnetostrictive damping device of vehicle suspension system | |
| CN104385874A (en) | Resonant frequency self-tracking giant magnetostrictive vehicle suspension vibration reduction device | |
| CN105667240A (en) | Giant magnetostictive vehicle suspension shock absorption device | |
| CN105672516B (en) | Integrated form tuning quality damps wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Deng Huaxia Inventor after: Zhao Shiyu Inventor after: Zhang Jin Inventor after: Yu Liandong Inventor after: Wang Yue Inventor after: Sun Shuaishuai Inventor after: Li Weihua Inventor after: Xia Haojie Inventor before: Deng Huaxia Inventor before: Zhao Shiyu Inventor before: Zhang Jin Inventor before: Wang Yue Inventor before: Sun Shuaishuai Inventor before: Li Weihua |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DENG HUAXIA ZHAO SHIYU ZHANG JIN WANG YUE SUN SHUAISHUAI LI WEIHUA TO: DENG HUAXIA ZHAO SHIYU ZHANG JIN YU LIANDONG WANG YUE SUN SHUAISHUAI LI WEIHUA XIA HAOJIE |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |