CN101086179A - Self-power-supply magnetorheological intelligent vibration damping device - Google Patents

Self-power-supply magnetorheological intelligent vibration damping device Download PDF

Info

Publication number
CN101086179A
CN101086179A CN 200710034309 CN200710034309A CN101086179A CN 101086179 A CN101086179 A CN 101086179A CN 200710034309 CN200710034309 CN 200710034309 CN 200710034309 A CN200710034309 A CN 200710034309A CN 101086179 A CN101086179 A CN 101086179A
Authority
CN
China
Prior art keywords
dc generator
damper
power
vibration damping
self
Prior art date
Application number
CN 200710034309
Other languages
Chinese (zh)
Inventor
陈政清
Original Assignee
湖南大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 湖南大学 filed Critical 湖南大学
Priority to CN 200710034309 priority Critical patent/CN101086179A/en
Publication of CN101086179A publication Critical patent/CN101086179A/en

Links

Abstract

A self-power magnetic current changing intelligent vibration damping system consists of electromagnetic adjustable magnetic current changing damper, rack gear accelerator and permanent magnet DC generator, the piston rod of said damper is fixed and connected with the racks of accelerator, and the final pinion of accelerator is installed on said DC generator axle, the outlet end of the DC generator is connected with the electromagnetic coil receiving terminal of said damper, and controller is installed between the outlet end of said DC generator and the electromagnetic coil receiving terminal of the damper. The kernel technology of the invention is: it integrates the sensor of structure vibration and the power-supply source of magnetic current changing damper on small-sized permanent magnet DC generator. The invention applies to the vibration damping of civil engineering structure, it can realize semi-active real-time control without extraneous power source, reduce the system cost, and it is reliable, stable, simple and practical and has obvious self-adaptive characteristics.

Description

Self-power-supply magnetorheological intelligent vibration damping device

Technical field

The present invention relates to a kind of self-power-supply magnetorheological intelligent vibration damping device, be applicable to half ACTIVE CONTROL of civil engineering structure vibration damping.

Background technology

Vibration control of civil engineering structure can alleviate reaction and the damage accumulation of structure under dynamic actions such as wind, earthquake, vehicle effectively, improving the antivibration ability of structure effectively and combat a natural disaster performance, is structure antivibration vibration damping and the effective ways and the technology of preventing and reducing natural disasters.

Structural vibration control can be divided into Passive Control, ACTIVE CONTROL, half ACTIVE CONTROL and mix control.Passive Control does not need the external world that energy is provided, and relies between the structural element, the consumed energy that interacts between structure and the accessory system, thus reach the purpose of vibration damping.ACTIVE CONTROL is to have under the external energy supply situation, and control device applies active controlling force by certain control law to structure.Half ACTIVE CONTROL is support with the Passive Control, with less energy state of a control is switched, and obtains to control preferably effect.Mixing control is to combine with different control methods, gives full play to advantage separately, makes ACTIVE CONTROL provide less control just can reduce structural vibrations effectively.The active control technology of civil engineering structure vibration damping is feasible in theory, be difficult to guarantee but present common recognition is its reliability, and cost is higher, and half ACTIVE CONTROL based on intellectual material obtains to pay attention to day by day in recent years.MR damper is a kind of emerging intelligent damper, have the control energy consumption low, exert oneself big, response speed is fast, simple in structure, damping force is continuously along contrary adjustable, and can be easily and good characteristics such as microcomputer control combines.Since 20th century, be introduced in vibration control of civil engineering structure the nineties, MR damper had been subjected to the extensive concern of Chinese scholars.Gong Ying MR damper mostly is the electromagnetism adjustable type in the market, as U.S. Lord company product, this damper is made up of magnetic flow liquid, piston, coil, outer shell etc., the reciprocal external force that acts on the damper two ends promotes piston, and the magnetic flow liquid at piston two ends back and forth flows by the throttle orifice on the piston.Electric current in coil increases, and the throttle orifice internal magnetic field will strengthen, and the resistance that magnetic current and liquid flow is crossed throttle orifice increases thereupon, make the damping force of damper output increase, otherwise electric current reduces, and damping force also reduces.Therefore by adjusting, can control the size of damper damping force to input current.Because These characteristics, Gong Ying MR damper all requires to dispose reliable electric power system in the market.But when being used for outdoor structures such as bridge and structural seismic when it, inconvenience maybe can not guarantee reliable power supply, has restricted the application of MR damper in these fields.The current permanent magnet type magnetic current variable damper that need not to power of having developed, and in the cable-stayed bridge cable vibration damping, obtain practical application, but it can only reach passive optimum.

In civil engineering structure, to give full play to the advantage that MR damper is used for half ACTIVE CONTROL, must guarantee the height reliability of control, and overcome half ACTIVE CONTROL system dependence and sensor, control circuit life-span of external power source is significantly less than the structure weakness in application life.Concerning the civil engineering structure vibration damping,, can be embodied by cylinder body and the relative displacement between the piston rod, speed or the acceleration of MR damper by the dynamic vibration information of control structure owing to linked to each other with the piston rod of MR damper by control structure.Existing semi-active suspension system based on MR damper adopts the measurement that realizes the dynamic vibration information of controlled device with the parellel arranged displacement of MR damper, speed or acceleration transducer, has that cost is big, a complex structure and be subjected to problems such as environmental disturbances is big.The MR damper of at present existing integrated relative velocity sensing function, but this system is still too complicated, comprises all multimodes such as twin coil formula MR damper, signal pre-processing circuit, controller and current driver.2005, there is the scholar to propose fixed permanent magnet on the piston rod of traditional MR damper abroad, fixed inductor on outer shell, when structural vibration drives the piston rod vibration, the magnetic flux of the induction coil generation induced electromotive force that changes, directly give the magnet exciting coil power supply of MR damper then, implement Self Adaptive Control, but the civil engineering structure that this scheme is little for vibration amplitude, frequency is low, the induced electromotive force that induction coil produces is often less, add circuit loss, be difficult to drop into actual half ACTIVE CONTROL and use.

Summary of the invention

The technical problem to be solved in the present invention is, problem at the prior art existence, a kind of self-power-supply magnetorheological intelligent vibration damping device is provided, make the damping parameter of this system can be with controlled structural vibration real-time change, and the damping force adjustable range is big, reliable and stable, can realize the optimum control automatically of multiple mode, thereby solve the difficult problem that reliability is difficult to guarantee when using MR damper and carrying out civil engineering structure half ACTIVE CONTROL.

Technical scheme of the present invention is, described self-power-supply magnetorheological intelligent vibration damping device comprises electromagnetism adjustable type MR damper, rack pinion accelerator, permanent magnetic DC generator, its technical characterictic is, the piston rod of described electromagnetism adjustable type MR damper and the tooth bar of described rack pinion accelerator connect firmly, and the final stage gear of this rack pinion accelerator is installed on the axle of described permanent magnetic DC generator, and the output of described permanent magnetic DC generator connects with the electromagnetic coil terminals of described electromagnetism adjustable type MR damper.

Below the present invention made further specify.

As shown in Figure 1, self-power-supply magnetorheological intelligent vibration damping device of the present invention comprises electromagnetism adjustable type MR damper 12, rack pinion accelerator 13, permanent magnetic DC generator 9, its technical characterictic is, the piston rod 2 of described electromagnetism adjustable type MR damper 12 connects firmly with the tooth bar 6 of described rack pinion accelerator 13, and the final stage pinion of this rack pinion accelerator 13 is installed on the axle of described permanent magnetic DC generator 9, and the output of described permanent magnetic DC generator 9 connects with the electromagnetic coil terminals of described electromagnetism adjustable type MR damper 12.

As shown in Figure 1, also can between the electromagnetic coil terminals of the output of described permanent magnetic DC generator 9 and electromagnetism adjustable type MR damper 12, controller (prior art structure) 11 be installed, to implement Based Intelligent Control better.

Referring to Fig. 1, during actual the use, the piston rod 2 of described electromagnetism adjustable type MR damper 12 connects firmly end with being connected firmly by control structure 10 with the tooth bar 6 of rack pinion accelerator 13; When being begun to vibrate by control structure, the piston rod 2 of described electromagnetism adjustable type MR damper 12 produces corresponding motion thereupon, move back and forth and drive tooth bar 6 during the vibration of this damper, drive described permanent magnetic DC generator 9 rotor rotation by described rack pinion accelerator 13, thereby produce an electromotive force that directly is proportional to damper speed, its both positive and negative polarity changes with damper piston 1 direction of motion.This electromotive force via controller 11 feeds back to the electromagnet coil of electromagnetism adjustable type MR damper 12, real time altering damper parameter by certain way.This shows that permanent magnetic DC generator 9 is the sensor that is vibrated by control structure 10, is again the power generator of vibration insulating system half ACTIVE CONTROL; The vibration amplitude of civil engineering structure is little, frequency is low, but it is very big to exert oneself, therefore accelerator need be set, rack pinion accelerator 13 can not only be transformed to the reciprocating motion of electromagnetism adjustable type MR damper 12 forward and reverse rotation of permanent magnetic DC generator 9 rotors, improve this generator amature rotating speed simultaneously, guaranteed that motor can produce enough big electromotive force and power output, satisfied the needs that MR damper is regulated damping force.

In the system of the present invention, rack pinion accelerator 13 and permanent magnetic DC generator 9 can be become one.Described controller 11 can adopt prior art, as using single-chip microcomputer as control module, it is according to the output voltage signal of the permanent magnetic DC generator 9 that collects, provide the control corresponding instruction by computing, provide working power to the electromagnetic coil of electromagnetism adjustable type MR damper 12 with suitable electric current and voltage by performance element.

As known from the above, the present invention is a kind of self-power-supply magnetorheological intelligent vibration damping device, is applicable to half ACTIVE CONTROL of civil engineering structure vibration damping, and the advantage that it is compared with prior art has:

1, self-power-supply magnetorheological intelligent vibration damping device of the present invention need not extraneous power supply, just can realize the electromagnetism adjusting, during especially for outdoor structure such as bridge and structural seismic, can avoid owing to inconveniently maybe can not guarantee reliable power supply and use the obstacle that causes to damper;

2, the permanent magnetic DC generator of self-power-supply magnetorheological intelligent vibration damping device of the present invention is the sensor of structural vibration, is again the power generator of vibration insulating system half ACTIVE CONTROL;

3, self-power-supply magnetorheological intelligent vibration damping device of the present invention not only becomes the reciprocating motion of damper forward and reverse rotation of generator amature by the rack pinion accelerator, improved the generator amature rotating speed simultaneously, guarantee that motor can produce enough big electromotive force and power output, satisfy MR damper and regulate the needs of damping force, and can recently directly control the size that generator produces electromotive force by the acceleration of design rack pinion accelerator.

4, self-power-supply magnetorheological intelligent vibration damping device of the present invention has been simplified half active damping system based on the MR damper, has reduced the system cost cost, and reliable, stable, simple and practical, has tangible self-adaptive features.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the present invention.

In the drawings:

The 1-piston, the 2-piston rod, the 3-outer shell,

The 4-magnetic flow liquid, the 5-electromagnet, the 6-tooth bar,

The 7-gear wheel, the 8-pinion, the 9-permanent magnet dc motor,

10-is by control structure, the 11-controller, and 12-electromagnetic type MR damper,

13-rack pinion accelerator.

The specific embodiment

As shown in Figure 1, self-power-supply magnetorheological intelligent vibration damping device of the present invention mainly is made up of electromagnetism adjustable type MR damper 12, rack pinion accelerator 13, permanent magnet DC motor 9, controller 11; Wherein, the piston rod 2 of described electromagnetism adjustable type MR damper 12 connects firmly with the tooth bar 6 of described rack pinion accelerator 13, and the final stage pinion of this rack pinion accelerator 13 is installed on the axle of described permanent magnetic DC generator 9, the output of permanent magnetic DC generator 9 is with installing controller 11 between the electromagnetic coil terminals of described electromagnetism adjustable type MR damper 12, and rack pinion accelerator 13 and permanent magnetic DC generator 9 are become one.

Described controller 11 adopts prior art, as using single-chip microcomputer as control module, it is according to the output voltage signal of the permanent magnetic DC generator 9 that collects, provide the control corresponding instruction by computing, provide working power to the electromagnetic coil of electromagnetism adjustable type MR damper 12 with suitable electric current and voltage by performance element.

A kind of composition of described rack pinion accelerator 13 is, tooth bar 6 is meshed with gear wheel 7, and this gear wheel 7 is meshed with the pinion 8 on the axle that is contained in permanent magnet DC motor 9.During practical application, the piston rod 2 of described electromagnetism adjustable type MR damper 12 connects firmly end with being connected firmly by control structure 10 with the tooth bar 6 of described rack pinion accelerator 13.

Claims (2)

1, a kind of self-power-supply magnetorheological intelligent vibration damping device, comprise electromagnetism adjustable type MR damper (12), rack pinion accelerator (13), permanent magnetic DC generator (9), it is characterized in that, the piston rod (2) of described electromagnetism adjustable type MR damper (12) connects firmly with the tooth bar (6) of described rack pinion accelerator (13), and the final stage pinion of this rack pinion accelerator (13) is installed on the axle of described permanent magnetic DC generator (9), and the output of described permanent magnetic DC generator (9) connects with the electromagnetic coil terminals of described electromagnetism adjustable type MR damper (12).
2, according to the described self-power-supply magnetorheological intelligent vibration damping device of claim 1, it is characterized in that, between the electromagnetic coil terminals of the output of described permanent magnetic DC generator (9) and electromagnetism adjustable type MR damper (12), controller (11) is installed.
CN 200710034309 2007-01-24 2007-01-24 Self-power-supply magnetorheological intelligent vibration damping device CN101086179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200710034309 CN101086179A (en) 2007-01-24 2007-01-24 Self-power-supply magnetorheological intelligent vibration damping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200710034309 CN101086179A (en) 2007-01-24 2007-01-24 Self-power-supply magnetorheological intelligent vibration damping device

Publications (1)

Publication Number Publication Date
CN101086179A true CN101086179A (en) 2007-12-12

Family

ID=38937321

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200710034309 CN101086179A (en) 2007-01-24 2007-01-24 Self-power-supply magnetorheological intelligent vibration damping device

Country Status (1)

Country Link
CN (1) CN101086179A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101968096A (en) * 2010-09-29 2011-02-09 中国电力科学研究院 Self-driving magnetorheological damper
CN102032312A (en) * 2010-12-10 2011-04-27 重庆大学 Magnetorheological fat-based self-powered damping adjustment device
CN102094930A (en) * 2011-02-17 2011-06-15 谭和平 Double-cylinder differential magnetorheological damper
CN102168459A (en) * 2011-04-29 2011-08-31 哈尔滨工业大学 Magnetorheological vibration isolating device based on piezoelectric energy self collection
CN102277910A (en) * 2011-04-29 2011-12-14 哈尔滨工业大学 Magneto rheological energy-dissipating and shock-absorbing device based on piezoelectric self energy collection
CN102374255A (en) * 2010-08-05 2012-03-14 香港中文大学 Self-powered and self-sensing magnetorheological (MR) fluid damper
CN102418765A (en) * 2011-11-03 2012-04-18 重庆大学 Self-perception, self-power supply and adaptive control magnetorheological vibration damping system
CN102493652A (en) * 2011-12-08 2012-06-13 中联重科股份有限公司 Concrete pumping equipment and arm-support-vibration semi-active control device and arm-support-vibration semi-active control method thereof
CN102493573A (en) * 2011-12-27 2012-06-13 中铁大桥局集团武汉桥梁科学研究院有限公司 Multi-field coupling energy-saving tuned mass vibration reduction device
CN103015556A (en) * 2012-12-26 2013-04-03 清华大学 Acceleration-related damper
CN103184749A (en) * 2013-03-14 2013-07-03 北京工业大学 Base isolation non-contact limit system
CN103335052A (en) * 2013-07-02 2013-10-02 大连理工大学 Driven viscous damper adjustable in damping force
CN103469924A (en) * 2013-09-29 2013-12-25 东南大学 Electromagnetic energy consumption damper
CN103527703A (en) * 2013-10-25 2014-01-22 重庆大学 Self-powered magnetic rheological damper
CN103938751A (en) * 2014-04-11 2014-07-23 湖南科技大学 Self-powered semi-active tuned mass damper
CN104500641A (en) * 2015-01-14 2015-04-08 青岛理工大学 Birotor self-powered damper based on magnetorheological elastomers
CN105172507A (en) * 2015-07-15 2015-12-23 西南交通大学 Self-energized magneto-rheological shock absorber system used for automotive suspension
CN105421609A (en) * 2016-01-14 2016-03-23 同济大学 Semi-active variable-rigidity variable-damping mixed damper
CN106884925A (en) * 2017-01-31 2017-06-23 东南大学 A kind of rack driving pattern dish MR damper
WO2018189712A1 (en) * 2017-04-13 2018-10-18 Detroit Electric Ev Limited Suspension system of vehicle and method of operation

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102374255A (en) * 2010-08-05 2012-03-14 香港中文大学 Self-powered and self-sensing magnetorheological (MR) fluid damper
CN101968096A (en) * 2010-09-29 2011-02-09 中国电力科学研究院 Self-driving magnetorheological damper
CN102032312A (en) * 2010-12-10 2011-04-27 重庆大学 Magnetorheological fat-based self-powered damping adjustment device
CN102032312B (en) * 2010-12-10 2012-10-03 重庆大学 Magnetorheological fat-based self-powered damping adjustment device
CN102094930A (en) * 2011-02-17 2011-06-15 谭和平 Double-cylinder differential magnetorheological damper
CN102094930B (en) * 2011-02-17 2013-12-04 重庆材料研究院 Double-cylinder differential magnetorheological damper
CN102168459A (en) * 2011-04-29 2011-08-31 哈尔滨工业大学 Magnetorheological vibration isolating device based on piezoelectric energy self collection
CN102277910A (en) * 2011-04-29 2011-12-14 哈尔滨工业大学 Magneto rheological energy-dissipating and shock-absorbing device based on piezoelectric self energy collection
CN102418765A (en) * 2011-11-03 2012-04-18 重庆大学 Self-perception, self-power supply and adaptive control magnetorheological vibration damping system
CN102418765B (en) * 2011-11-03 2013-08-28 重庆大学 Self-perception, self-power supply and adaptive control magnetorheological vibration damping system
CN102493652B (en) * 2011-12-08 2014-01-22 中联重科股份有限公司 Concrete pumping equipment and arm-support-vibration semi-active control device and arm-support-vibration semi-active control method thereof
CN102493652A (en) * 2011-12-08 2012-06-13 中联重科股份有限公司 Concrete pumping equipment and arm-support-vibration semi-active control device and arm-support-vibration semi-active control method thereof
CN102493573A (en) * 2011-12-27 2012-06-13 中铁大桥局集团武汉桥梁科学研究院有限公司 Multi-field coupling energy-saving tuned mass vibration reduction device
CN102493573B (en) * 2011-12-27 2013-10-23 中铁大桥局集团武汉桥梁科学研究院有限公司 Multi-field coupling energy-saving tuned mass vibration reduction device
CN103015556B (en) * 2012-12-26 2015-02-18 清华大学 Acceleration-related damper
CN103015556A (en) * 2012-12-26 2013-04-03 清华大学 Acceleration-related damper
CN103184749A (en) * 2013-03-14 2013-07-03 北京工业大学 Base isolation non-contact limit system
CN103335052A (en) * 2013-07-02 2013-10-02 大连理工大学 Driven viscous damper adjustable in damping force
CN103469924A (en) * 2013-09-29 2013-12-25 东南大学 Electromagnetic energy consumption damper
CN103469924B (en) * 2013-09-29 2015-08-19 东南大学 Electromagnetic energy consumption damper
CN103527703A (en) * 2013-10-25 2014-01-22 重庆大学 Self-powered magnetic rheological damper
CN103938751A (en) * 2014-04-11 2014-07-23 湖南科技大学 Self-powered semi-active tuned mass damper
CN104500641B (en) * 2015-01-14 2016-08-24 青岛理工大学 A kind of birotor self-powered amortisseur based on magnetic rheology elastic body
CN104500641A (en) * 2015-01-14 2015-04-08 青岛理工大学 Birotor self-powered damper based on magnetorheological elastomers
CN105172507A (en) * 2015-07-15 2015-12-23 西南交通大学 Self-energized magneto-rheological shock absorber system used for automotive suspension
CN105421609A (en) * 2016-01-14 2016-03-23 同济大学 Semi-active variable-rigidity variable-damping mixed damper
CN105421609B (en) * 2016-01-14 2017-07-28 同济大学 Half active variable stiffness mutative damp mixing damper
CN106884925A (en) * 2017-01-31 2017-06-23 东南大学 A kind of rack driving pattern dish MR damper
WO2018189712A1 (en) * 2017-04-13 2018-10-18 Detroit Electric Ev Limited Suspension system of vehicle and method of operation

Similar Documents

Publication Publication Date Title
JP4065769B2 (en) vibration generator
US20160201646A1 (en) Improvements for a non-rotating wind energy generator
US9416533B2 (en) Damping device and vibration control apparatus for structure
CN101253673B (en) Ironless magnetic linear motors having levitating and transversal force capacities
US20160059658A1 (en) Damper
CN102459947B (en) Electromagnetic actuator with integrated passive damper, suspension system and vehicle with electromagnetic actuator
US20150069683A1 (en) Kinetic Energy Management System
CN102619921B (en) Shock absorber device with shunt-wound inertial container and damping
WO2015120683A1 (en) A single-degree-of-freedom magnetic vibration isolation device
CN2621239Y (en) Super magnetostriction material vibration actuator
US5042786A (en) Hydraulically damped rubber mounting
CN101915283B (en) Magneto-rheological combined damping control method and device
CN104044426B (en) A kind of variable rigidity electromagnetism energy regenerative suspension
CN201173268Y (en) MR elastomer vibration isolator
Scruggs et al. Control of a civil structure using an electric machine with semiactive capability
CN204610676U (en) A kind of energy magnetic rheological vibration damper
Huang et al. Active controller design for an electromagnetic energy-regenerative suspension
JP2013187928A (en) Oscillation power generator
CN102146980B (en) Rigid sectional model damp continuous regulating device for wind-tunnel test
DE102010060935A1 (en) Active dynamic vibration absorption device for a vehicle
CN103029139B (en) Flexible mechanical arm vibration reduction device and method based on magneto-rheological technology
CN105811725B (en) A kind of linear vibration motor
CN100552256C (en) Magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force
CN104061275B (en) It is capable of the electronics active engine mount of double-direction control
CN100564932C (en) Rigidity-variable full-automatic power vibration-absorber

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20071212