CN106989130A - A kind of half active mono-pendulum type eddy current tuned mass damper - Google Patents
A kind of half active mono-pendulum type eddy current tuned mass damper Download PDFInfo
- Publication number
- CN106989130A CN106989130A CN201710319815.XA CN201710319815A CN106989130A CN 106989130 A CN106989130 A CN 106989130A CN 201710319815 A CN201710319815 A CN 201710319815A CN 106989130 A CN106989130 A CN 106989130A
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- China
- Prior art keywords
- tuned mass
- pendulum type
- eddy current
- mass damper
- mono
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- 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.)
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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
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
- F16F6/005—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid using permanent magnets only
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The present invention relates to a kind of half active mono-pendulum type eddy current tuned mass damper, it is made up of mono-pendulum type eddy current tuned mass damper and servo-control system, wherein：Mono-pendulum type eddy current tuned mass damper is made up of permanent magnet blocks, swing rope and conductor plate；Permanent magnet blocks and conductor plate fall within servo-control system simultaneously；Servo-control system also includes magnetic conductive board, live bearing, controller, single chip microcomputer circuit board, acceleration transducer and stepper motor.The length of the swing rope of the present invention can be adjusted by servo-control system, to realize the accurate control of the horizontal natural frequency of vibration of mono-pendulum type tuned mass damper.The present invention replaces traditional viscous damping with eddy-current damping, it is possible to increase the stability and durability of damper, simplifies the design of damper.Spacing distance of the big I of damping force between change conductor plate and permanent magnet blocks of the present invention changes, to improve the effectiveness in vibration suppression of damper.
Description
Technical field
The invention belongs to civil engineering, vibration control technology field, specially a kind of half active mono-pendulum type is eddy current tuned
Mass damper.
Background technology
In today's society, tuned mass damper because having, easy construction small to original building structural modification, vibration damping control effect
Fruit significantly the advantages of and have application by extensive concern, and in building structure at home and abroad, such as Taipei 101 mansion, upper marine
Heart etc..But traditional tuned mass damper has the shortcomings that the tuning sensitiveness to frequency, not only building structure itself damage
Wound etc. can influence the effectiveness in vibration suppression of tuned mass damper, the sometimes characteristic of its own, the degeneration of such as fluid linking damper or
When building structure a certain component as tuned mass damper quality when quality change can also influence its control effect.And
And, if therefore the natural frequency of vibration estimate of timing structure has differences with its actual natural frequency of vibration, how to realize that tuning quality hinders
The Self Adaptive Control of Buddhist nun's device, it is close with the frequency of structure to adjust own frequency, to reach good effectiveness in vibration suppression, just into
For a new research direction highly significant.
Traditional mono-pendulum type tuned mass damper provides damping using hydraulic pressure fluid linking damper, is providing the same of damping
When, also have certain rigidity, it is impossible to accomplish rigidity and being kept completely separate for damping, influence design analysis.Moreover, hydraulic pressure viscous damping
Device also there are problems that oil leak, be difficult maintenance, the later stage be difficult to, increase maintenance difficulty and cost.Eddy-current damping is pair
The big innovation of the one of hydraulic pressure viscous damping.The principle of eddy current damper is, conductor mass cutting magnetic induction line in motion, according to
Faraday electromagnetic induction principle, will produce induced electromotive force in conductor, form current vortex, convert vibrational energy into conductor
Heat, so as to realize vibration control.The advantage of eddy current damper is：Do not contacted directly between magnet and conductor, nothing
Frictional damping and abrasion；Not by ambient influnences such as temperature；In the absence of situations such as oil leaks, it is easy to safeguard and good endurance.
Existing eddy current tuned mass damper can not adjust the size of damping force, when structure is in wind load, earthquake etc.
When being vibrated under effect, inappropriate damping force can not only cause the not good enough of damper vibration damping effect, in some instances it may even be possible to make damping
Device produces reaction.Therefore, the damping force of damper how is adaptively adjusted to optimum value, is very worth research.
The content of the invention
It is an object of the invention to provide a kind of half active mono-pendulum type eddy current tuned mass damper, to overcome existing skill
Disadvantages mentioned above in art, it is identical with the frequency of main structure to frequency to adjust own level, to meet the controlled structure frequency of tuning
The requirement of rate, while the damping force of itself can be adaptively adjusted to optimal damper power, so as to reach good effectiveness in vibration suppression；
To achieve the above object, the present invention uses following technical scheme：
A kind of half active mono-pendulum type eddy current tuned mass damper, by mono-pendulum type eddy current tuned mass damper and servo control
System 2 processed is constituted, wherein：
The mono-pendulum type eddy current tuned mass damper is made up of permanent magnet blocks 7, swing rope 6 and conductor plate 8；Permanent magnet blocks 7 are consolidated
Due to the one end of swing rope 6, permanent magnet blocks 7 are located at the top of conductor plate 8；
The servo-control system 2 includes magnetic conductive board 9, live bearing 10, controller 11, single chip microcomputer circuit board 3, acceleration sensing
Device 4 and stepper motor 5；The controller 11 is located at the inner bottom part of main structure 1, and the connection live bearing 10 of controller 11, magnetic conductive board 9 is consolidated
Surely the top of live bearing 10 is connected to, the conductor plate 8 is fixed on the top of magnetic conductive board 9；Stepper motor 5 is fixed on main structure
Below 1 inner top, the other end of swing rope 6 connection stepper motor 5；The acceleration transducer 4 is installed on the top side of main structure 1
To for measuring the level of main structure to acceleration；Single chip microcomputer circuit board 3 is installed on the top of main structure 1, single chip microcomputer circuit board 3
Connection stepper motor 5 and controller 11, when the occurred level of permanent magnet blocks 7 is to during vibration, cut with conductor plate 8 respectively
The line of magnetic induction is moved, and is consumed energy by the heating of conductor plate 8, and the acting as of the magnetic conductive board 9 strengthens magnetic field intensity.
In the present invention, after the signal of the analyzing and processing of single chip microcomputer circuit board 3 acceleration transducer 4, disposable accurate meter
The pendulum length of regulation needed for calculating, controls the stepper motor 5 disposably to complete the length adjustment of the swing rope 6.
In the present invention, after the signal of the analyzing and processing of single chip microcomputer circuit board 3 acceleration transducer 4, start controller 11,
The up and down motion of live bearing 10 is controlled by controller 11, changes the spacer between conductor plate 8 and permanent magnet blocks 7 with this
From changing the size of eddy-current damping power with this.
In the present invention, the material of the permanent magnet blocks can be rare earth permanent-magnetic material, SmCo, NI-G cobalt, ferrite permanent-magnet material
Material etc.；The material of the conductor plate can be copper, aluminium etc.；The material of the magnetic conductive board can be iron, cadmium, cobalt etc..
In the present invention, the up and down distance range of live bearing is 5 ~ 10mm.
Compared with prior art, the present invention has following advantageous effects：
A kind of half active mono-pendulum type eddy current tuned mass damper of the present invention, the length of swing rope can pass through servo-control system
Carry out accurate adjustment, can accurate adjustment tuned mass damper level it is identical with main structure frequency to frequency；Simultaneously can be certainly
The damping force of itself is adaptively adjusted to optimal damper power, so as to reach good effectiveness in vibration suppression, is conducive to improving the peace of structure
Full property and durability.
Brief description of the drawings
Fig. 1 is a kind of half active mono-pendulum type eddy current tuned mass damper front view of the present invention；
Fig. 2 is the servo-control system schematic diagram of the present invention；
Fig. 3 is the mutative damp partial schematic diagram of the present invention；
Label in figure：1- main structures, 2- servo-control systems, 3- single chip microcomputer circuit boards, 4- acceleration transducers, 5- steppings electricity
Machine, 6- swing ropes, 7- permanent magnet blocks, 8- conductor plates, 9- magnetic conductive boards, 10- live bearings, 11- controllers, 12- mutative damps part.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1：As shown in Figure 1 to Figure 3, a kind of half active mono-pendulum type eddy current tuned mass damper of the invention by
Mono-pendulum type eddy current tuned mass damper is constituted with servo-control system 2, wherein：
The mono-pendulum type tuned mass damper is made up of mass 6, swing rope 7 and fluid linking damper 8；
The permanent magnet blocks 7 and conductor plate 8 fall within servo-control system 2 simultaneously；
The servo-control system 2 also includes magnetic conductive board 9, live bearing 10, controller 11, single chip microcomputer circuit board 3, acceleration and passed
Sensor 4 and stepper motor 5；
The conductor plate 8 is fixedly connected on the top of magnetic conductive board 9, and magnetic conductive board 9 is fixedly connected on the top of live bearing 10.
The top that the acceleration transducer 4 is installed on main structure 1 is lateral, for measuring the level of main structure to acceleration
Degree.
The occurred level of permanent magnet blocks 7 occurs cutting magnetic induction line motion with conductor plate 8, passes through conductor to during vibration
Plate 8 heating power consumption, the magnetic conductive board 9 act as strengthen magnetic field intensity.
After the signal of the analyzing and processing of single chip microcomputer circuit board 3 acceleration transducer 4, adjusted needed for disposable accurate calculating
Pendulum length, control the stepper motor 5 disposably to complete the length adjustment of the swing rope 6.
After the signal of the analyzing and processing of single chip microcomputer circuit board 3 acceleration transducer 4, start controller 11, pass through control
Device 11 controls the up and down motion of live bearing 10, changes spacing distance between conductor plate 8 and permanent magnet blocks 7 with this, is changed with this
Become the size of eddy-current damping power.
The material of the permanent magnet blocks 7 can be rare earth permanent-magnetic material, SmCo, NI-G cobalt, ferrite permanent-magnet materials etc.；It is described
The material of conductor plate 8 can be copper, aluminium etc.；The material of the magnetic conductive board 9 can be iron, cadmium, cobalt etc..
The up and down distance range of the live bearing 10 is 5 ~ 10mm.
Here description of the invention and application be illustrative, be not wishing to limit the scope of the invention to above-described embodiment
In.The deformation and change of embodiments disclosed herein are possible, for those skilled in the art, real
The replacement and equivalent various parts for applying example are known.It should be appreciated by the person skilled in the art that not departing from the present invention
Spirit or essential characteristics in the case of, the present invention can in other forms, structure, arrangement, ratio, and with other components,
Material and part are realized.In the case where not departing from scope and spirit of the present invention, embodiments disclosed herein can be entered
The other deformations of row and change.
Claims (3)
1. a kind of half active mono-pendulum type eddy current tuned mass damper, it is characterised in that hindered by mono-pendulum type eddy current tuned mass
Buddhist nun's device and servo-control system（2）Composition, wherein：
The mono-pendulum type eddy current tuned mass damper is by permanent magnet blocks（7）, swing rope（6）And conductor plate（8）Composition；Permanent magnet
Block（7）It is fixed on swing rope（6）One end, permanent magnet blocks（7）Positioned at conductor plate（8）Top；
The servo-control system（2）Including magnetic conductive board（9）, live bearing（10）, controller（11）, single chip microcomputer circuit board（3）、
Acceleration transducer（4）And stepper motor（5）；The controller（11）Positioned at main structure（1）Inner bottom part, controller（11）Connection
Live bearing（10）, magnetic conductive board（9）It is fixedly connected on live bearing（10）Top, the conductor plate（8）It is fixed on magnetic conductive board
（9）Top；Stepper motor（5）It is fixed on main structure（1）Below inner top, swing rope（6）The other end connects stepper motor（5）；
The acceleration transducer（4）It is installed on main structure（1）Top it is lateral, for measuring the level of main structure to acceleration；It is single
Piece mounted circuit board（3）It is installed on main structure（1）Top, single chip microcomputer circuit board（3）Stepper motor is connected respectively（5）And controller
（11）, when the permanent magnet blocks（7）Occurred level is to during vibration, with conductor plate（8）Generation cutting magnetic induction line is moved, by leading
Body plate（8）Heating power consumption, the magnetic conductive board（9）Act as strengthen magnetic field intensity.
2. a kind of half active mono-pendulum type eddy current tuned mass damper according to claim 1, it is characterised in that described
Single chip microcomputer circuit board（3）Analyze and process acceleration transducer（4）Signal after, it is disposable accurate calculate needed for regulation pendulum length,
Control the stepper motor（5）Disposably complete the swing rope（6）Length adjustment.
3. a kind of half active mono-pendulum type eddy current tuned mass damper according to claim 1, it is characterised in that described
Single chip microcomputer circuit board（3）Analyze and process acceleration transducer（4）Signal after, start controller（11）, pass through controller（11）
Control live bearing（10）Up and down motion, conductor plate is changed with this（8）With permanent magnet blocks（7）Between spacing distance, with this
Change the size of eddy-current damping power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319815.XA CN106989130A (en) | 2017-05-09 | 2017-05-09 | A kind of half active mono-pendulum type eddy current tuned mass damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319815.XA CN106989130A (en) | 2017-05-09 | 2017-05-09 | A kind of half active mono-pendulum type eddy current tuned mass damper |
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| Publication Number | Publication Date |
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| CN106989130A true CN106989130A (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710319815.XA Pending CN106989130A (en) | 2017-05-09 | 2017-05-09 | A kind of half active mono-pendulum type eddy current tuned mass damper |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620396A (en) * | 2017-09-20 | 2018-01-23 | 同济大学 | A kind of half active current vortex laminated rubber bases system |
| CN107761980A (en) * | 2017-09-20 | 2018-03-06 | 同济大学 | A kind of eddy current damper of active variable damping |
| CN107869200A (en) * | 2017-09-21 | 2018-04-03 | 同济大学 | A kind of half active eddy-current damping wall |
| CN109610678A (en) * | 2019-02-01 | 2019-04-12 | 青岛理工大学 | Hydraulic regulation rotary inertia active control device |
| CN111456266A (en) * | 2020-03-27 | 2020-07-28 | 天津大学 | Semi-active pendulum type impact damper |
| CN112112921A (en) * | 2020-10-29 | 2020-12-22 | 清华大学 | Magnetic liquid damping vibration absorber |
| CN112664131A (en) * | 2020-12-28 | 2021-04-16 | 长沙中联消防机械有限公司 | Aerial ladder vibration control system, aerial ladder vibration control method and fire fighting truck |
| CN115419183A (en) * | 2022-08-31 | 2022-12-02 | 湖南省潇振工程科技有限公司 | Tuned mass damper and damper frequency modulation method |
| CN116066512A (en) * | 2023-01-17 | 2023-05-05 | 哈尔滨工程大学 | Vibration damper of inner swinging type eddy current damper of wind turbine tower |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761980A (en) * | 2017-09-20 | 2018-03-06 | 同济大学 | A kind of eddy current damper of active variable damping |
| CN107620396A (en) * | 2017-09-20 | 2018-01-23 | 同济大学 | A kind of half active current vortex laminated rubber bases system |
| CN107869200A (en) * | 2017-09-21 | 2018-04-03 | 同济大学 | A kind of half active eddy-current damping wall |
| CN109610678B (en) * | 2019-02-01 | 2023-11-24 | 青岛理工大学 | Hydraulic adjusting rotary inertia active control device |
| CN109610678A (en) * | 2019-02-01 | 2019-04-12 | 青岛理工大学 | Hydraulic regulation rotary inertia active control device |
| CN111456266A (en) * | 2020-03-27 | 2020-07-28 | 天津大学 | Semi-active pendulum type impact damper |
| CN111456266B (en) * | 2020-03-27 | 2021-05-28 | 天津大学 | Semi-active pendulum type impact damper |
| CN112112921A (en) * | 2020-10-29 | 2020-12-22 | 清华大学 | Magnetic liquid damping vibration absorber |
| CN112664131A (en) * | 2020-12-28 | 2021-04-16 | 长沙中联消防机械有限公司 | Aerial ladder vibration control system, aerial ladder vibration control method and fire fighting truck |
| CN115419183B (en) * | 2022-08-31 | 2023-10-20 | 湖南省潇振工程科技有限公司 | Tuned mass damper and damper frequency modulation method |
| CN115419183A (en) * | 2022-08-31 | 2022-12-02 | 湖南省潇振工程科技有限公司 | Tuned mass damper and damper frequency modulation method |
| CN116066512A (en) * | 2023-01-17 | 2023-05-05 | 哈尔滨工程大学 | Vibration damper of inner swinging type eddy current damper of wind turbine tower |
| CN116066512B (en) * | 2023-01-17 | 2023-10-24 | 哈尔滨工程大学 | Vibration damper of inner swinging type eddy current damper of wind turbine tower |
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Application publication date: 20170728 |
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