CN106836544A - A kind of current vortex self frequency-changing tuned mass damper - Google Patents
A kind of current vortex self frequency-changing tuned mass damper Download PDFInfo
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- CN106836544A CN106836544A CN201710177430.4A CN201710177430A CN106836544A CN 106836544 A CN106836544 A CN 106836544A CN 201710177430 A CN201710177430 A CN 201710177430A CN 106836544 A CN106836544 A CN 106836544A
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- mass
- quality
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- variable
- permanent magnet
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Classifications
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- 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
Abstract
The present invention relates to a kind of current vortex self frequency-changing tuned mass damper, it is arranged in building main structure, including spring, fixed mass block, variable-quality block, permanent magnet bar, servo control division equipments and the confession regulation mass being fixed in main structure, described permanent magnet bar upper end is sequentially passed through the permanent magnet bar conduit of fixed mass block and variable-quality block center and is fixed by nut respectively, lower end extend into and is opened in the electromagnetism groove for regulation mass center, and set with the conductor plate relative induction being arranged in electromagnetism groove, described spring is set in outside permanent magnet bar, and upper end is connected with fixed mass block, lower end is connected with for regulation mass, described servo control division equipments are connected with variable-quality block and for regulation mass respectively.Compared with prior art, the present invention have the advantages that quality is adjustable, energy consumption is small, structure simplifies, without extra power, avoid rubbing, good damping result.
Description
Technical field
The present invention relates to technical field of civil engineering, more particularly, to a kind of current vortex self frequency-changing 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, sometimes the characteristic of its own, such as degeneration of viscous damper, bullet
The corrosion of spring or when building structure a certain component as tuned mass damper quality when quality change can also influence it
Control effect.And, if therefore the natural frequency of vibration estimate of timing structure has differences with its actual natural frequency of vibration, how to realize
The Self Adaptive Control of tuned mass damper, can real-time regulation own frequency it is close with the frequency of structure, it is good to reach
Effectiveness in vibration suppression, just become a new research direction highly significant.
Viscous damping provides damping using hydraulic pressure fluid linking damper, while damping is provided, also has certain rigidity, nothing
Method accomplishes rigidity and being kept completely separate for damping, influence design analysis.And, also there is oil leak, be difficult to support in hydraulic pressure fluid linking damper
The problems such as shield, later stage are difficult to regulation, increases the difficulty and cost safeguarded.
Eddy-current damping is innovated greatly to the one of hydraulic pressure viscous damping.The principle of eddy current damper is, conductor mass
The cutting magnetic induction line in motion, according to faraday electromagnetic induction principle, will produce induced electromotive force in conductor, form electric whirlpool
Stream, converts vibrational energy into the heat of conductor, so as to realize vibration control.The advantage of eddy current damper is：Magnet with
There is no directly contact between conductor, without frictional damping and abrasion；Not by ambient influnences such as temperature；In the absence of situations such as oil leaks, easily
In maintenance and good endurance.
But existing eddy current tuned mass damper also is difficult to adjust own frequency.Once due to reason mentioned above,
Causing its frequency and structure frequency deviation, effectiveness in vibration suppression will greatly decline.
The content of the invention
The purpose of the present invention is exactly to provide that a kind of quality is adjustable, energy for the defect for overcoming above-mentioned prior art to exist
The small, structure of consumption simplifies, without extra power, avoid current vortex self frequency-changing's tuned mass damper of friction, good damping result.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of current vortex self frequency-changing tuned mass damper, is arranged in building main structure, realizes subtracting by tuned frequency
Shake, the damper includes spring, fixed mass block, variable-quality block, permanent magnet bar, servo control division equipments and is fixed on main knot
On structure for regulation mass, described permanent magnet bar upper end sequentially pass through respectively fixed mass block and variable-quality block center
Permanent magnet bar conduit is simultaneously fixed by nut, and lower end extend into and is opened in the electromagnetism groove for regulation mass center, and with
Be arranged on conductor plate relative induction in electromagnetism groove to set, described spring is set in outside permanent magnet bar, and upper end with it is solid
Determine mass connection, lower end is connected with for regulation mass, described servo control division equipments are respectively with variable-quality block and for adjusting
Section mass connection；
When there is vertical motion in variable-quality block and fixed mass block, permanent magnet bar and the conductor being arranged in electromagnetism groove
Plate sensing produces current vortex, is generated heat by conductor plate and is consumed energy, while servo control division equipments are by changing for regulation mass
With the frequency of the quality adjustment damper of variable-quality block, make damper own frequency identical with the frequency of main structure.
Described variable-quality block and confession regulation mass is one and can deposit the container of solid.
Described damper also includes quality adjustment component, and the quality adjustment component includes singlechip controller, is arranged on
The first acceleration transducer at the top of variable-quality block, the second acceleration transducer being arranged in main structure and respectively with it is solid
Determine mass and the quality driver element for regulation mass connection, described the first acceleration transducer, the second acceleration biography
Sensor and quality driver element communicate with singlechip controller respectively.
Described solid is sand grains or rubble.
Described conductor plate is copper conductors plate or aluminum conductor plate.
The material of described permanent magnet bar is rare earth permanent-magnetic material, SmCo, aluminium nickel cobalt or ferrite permanent-magnet materials.
A diameter of 10-20mm of described permanent magnet bar, length is 300-600mm.
Described conductor plate is 10-30mm with the spacing of permanent magnet bar lower end.
Described quality driver element includes magnetic valve and gravel pump.
Compared with prior art, the present invention has advantages below：
First, quality is adjustable, energy consumption is small：Current vortex self frequency-changing tuned mass damper of the invention, variable-quality block and
Quality for adjusting mass can carry out accurate adjustment by servo control division equipments, and without real-time regulation, only in the selected period
Carry out, required delivery is small, can accurate adjustment tuned mass damper frequency it is identical with main structure frequency.
2nd, structure simplify, without extra power：The present invention can simplify the analysis design of the wind resistance and antidetonation of structure, use
The damping unit of permanent magnet bar-conductor plate provides damping force, improves the defect of traditional fluid linking damper, and provide without extraneous
The energy.
3rd, friction, good damping result are avoided：There is certain interval between permanent magnet bar and conductor plate, without frictional damping
And abrasion, realize that rigidity is separated with damping, good endurance reaches good effectiveness in vibration suppression, while have install simple, behaviour again
Make easily advantage.
Brief description of the drawings
Fig. 1 is front view of the invention.
Fig. 2 is top view of the invention.
Fig. 3 is B-B profiles in Fig. 2.
Fig. 4 is the partial enlarged drawing in A portions in Fig. 1.
Wherein, 1, variable-quality block, 2, fixed mass block, 3, spring, 4, permanent magnet bar, 5, permanent magnet bar conduit, 6, single
Piece machine controller, 7, quality driver element, the 8, first acceleration transducer, the 9, second acceleration transducer, 10, for regulation quality
Block, 11, conductor plate, 12, nut, 13, servo control division equipments, 14, electromagnetism groove, 15, main structure.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment：
As Figure 1-3, the present invention provides a kind of current vortex self frequency-changing tuned mass damper, and the damper is by fixing matter
Gauge block 2, variable-quality block 1, permanent magnet bar 4, electromagnetism groove 14, conductor plate 11, spring 3, for regulation mass 10 and SERVO CONTROL
Component 13 is constituted, wherein：
The bottom of spring 3 is connected with the top for regulation mass 10, the top of spring 3 and the bottom of fixed mass block 2
Portion is connected, and variable-quality block 1 is fixedly installed on the top of fixed mass block 2, in variable-quality block 1 and fixed mass block 2
The heart is provided with permanent magnet bar conduit 5.
Electromagnetism groove 14 is located at the end face center for regulation mass 10, and the upper end nut 12 of permanent magnet bar 4 is fixed on
The top of variable-quality block 1, through after permanent magnet bar conduit 5, lower end is inserted in electromagnetism groove 14, as shown in figure 4, variable-quality block
1 with fixed mass block 2 occur vertical motion when, permanent magnet bar 4 and be arranged in electromagnetism groove 14 conductor plate 11 sensing produce electricity
Vortex, is generated heat by conductor plate 11 and consumed energy.
The container for solid can be deposited of variable-quality block 1 and confession regulation mass 10, variable-quality block 1 and confession regulation matter
Quality needed for gauge block 10 is provided by solid such as fine sand, sandstone etc. for being put into container.
Singlechip controller 6 receive and process the first acceleration transducer 8 and the signal of the second acceleration transducer 9 after, can
The quality of regulation needed for disposable accurate calculating, and control quality driver element 7 disposably to complete the quality tune of variable-quality block 1
Section；
Variable-quality block 1, fixed mass block 2 and the material for regulation mass 10 can be copper, iron, aluminium etc., and shape can be
Cylinder, cuboid, groove body etc., highly can be 50 millimeters to 200 millimeters, and diameter can be 300 millimeters to 500 millimeters etc., tool
Shape and parameter can respectively according to actual control structure quality and frequency-tuning range it needs to be determined that.The present invention can be by adjusting
Save the regulation eddy-current damping such as material, size and gap size between the two of permanent magnet bar 4 and conductor plate 11.
The concrete form of quality driver element 7 can determine according to the form of solid masses, be usually arranged as magnetic valve and sand
The form that stone pump group is closed.
Application method of the invention is as follows：
When the 1st, installing current vortex self frequency-changing tuned mass damper of the invention, toward variable-quality block 1 and for regulation quality
Appropriate solid is added in block 10, starts servo control division equipments 13, singlechip controller 6 receives and processes the first acceleration transducer
8 and the signal of the second acceleration transducer 9 after, the quality of regulation, and controls quality driver element 7 needed for disposably can accurately calculating
The disposable quality adjustment for completing variable-quality block 1, closes servo control division equipments 13.
2nd, after use after a while, main structure may have with the frequency of current vortex self frequency-changing's tuned mass damper
Institute's deviation.Start servo control division equipments 13, singlechip controller 6 receives and processes the first acceleration transducer 8 and the second acceleration
After the degree signal of sensor 9, the quality of regulation needed for disposably can accurately calculating, and control quality driver element 7 disposably to complete
The quality adjustment of variable-quality block 1, closes servo control division equipments 13.
Here description of the invention and application are illustrative, are not wishing to limit the scope of the invention to above-described embodiment
In.The deformation and change of embodiments disclosed herein are possible, real for those skilled in the art
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 scope and spirit of the present invention are not departed from, embodiments disclosed herein can be entered
Other deformations of row and change.
Claims (9)
1. a kind of current vortex self frequency-changing tuned mass damper, is arranged in building main structure (15), is realized by tuned frequency
Vibration damping, it is characterised in that the damper include spring (3), fixed mass block (2), variable-quality block (1), permanent magnet bar (4),
Servo control division equipments (13) and confession regulation mass (10) being fixed in main structure (15), in described permanent magnet bar (4)
End sequentially passes through fixed mass block (2) and the central permanent magnet bar conduit (5) of variable-quality block (1) and by nut (12) respectively
Fixed, lower end extend into and is opened in the electromagnetism groove (14) for regulation mass (10) center, and be arranged on electromagnetism groove
(14) conductor plate (11) relative induction in is set, and it is outside that described spring (3) is set in permanent magnet bar (4), and upper end with
Fixed mass block (2) is connected, and lower end is connected with for adjusting mass (10), described servo control division equipments (13) respectively with it is variable
Mass (1) and confession regulation mass (10) connection；
When there is vertical motion in variable-quality block (1) and fixed mass block (2), permanent magnet bar (4) be arranged on electromagnetism groove
(14) conductor plate (11) sensing in produces current vortex, is generated heat by conductor plate (11) and is consumed energy, while servo control division equipments
By changing the frequency of the quality adjustment damper for regulation mass (10) and variable-quality block (1), make damper itself frequently
Rate is identical with the frequency of main structure.
2. a kind of current vortex self frequency-changing tuned mass damper according to claim 1, it is characterised in that described is variable
Mass (1) and confession regulation mass (10) are one and can deposit the container of solid.
3. a kind of current vortex self frequency-changing tuned mass damper according to claim 1, it is characterised in that described damping
Device also includes quality adjustment component, and the quality adjustment component includes singlechip controller (6), is arranged on variable-quality block (1) top
First acceleration transducer (8) in portion, the second acceleration transducer (9) being arranged in main structure (15) and respectively with fixation
Mass (2) and the quality driver element (7) for regulation mass (10) connection, described the first acceleration transducer (8), the
Two acceleration transducers (9) and quality driver element (7) communicate with singlechip controller (6) respectively.
4. a kind of current vortex self frequency-changing tuned mass damper according to claim 2, it is characterised in that described solid
It is sand grains or rubble.
5. a kind of current vortex self frequency-changing tuned mass damper according to claim 1, it is characterised in that described conductor
Plate (11) is copper conductors plate or aluminum conductor plate.
6. a kind of current vortex self frequency-changing tuned mass damper according to claim 1, it is characterised in that described permanent magnetism
The material of body rod (4) is rare earth permanent-magnetic material, SmCo, aluminium nickel cobalt or ferrite permanent-magnet materials.
7. a kind of current vortex self frequency-changing tuned mass damper according to claim 1, it is characterised in that described permanent magnetism
A diameter of 10-20mm of body rod (4), length is 300-600mm.
8. a kind of current vortex self frequency-changing tuned mass damper according to claim 1, it is characterised in that described conductor
Plate (11) is 10-30mm with the spacing of permanent magnet bar (4) lower end.
9. a kind of current vortex self frequency-changing tuned mass damper according to claim 3, it is characterised in that described quality
Driver element (7) includes magnetic valve and gravel pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177430.4A CN106836544A (en) | 2017-03-23 | 2017-03-23 | A kind of current vortex self frequency-changing tuned mass damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177430.4A CN106836544A (en) | 2017-03-23 | 2017-03-23 | A kind of current vortex self frequency-changing tuned mass damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106836544A true CN106836544A (en) | 2017-06-13 |
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ID=59129563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710177430.4A Pending CN106836544A (en) | 2017-03-23 | 2017-03-23 | A kind of current vortex self frequency-changing tuned mass damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN106836544A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179515A (en) * | 2017-06-22 | 2017-09-19 | 同济大学 | A kind of eddy current damper health monitoring systems |
| CN107289066A (en) * | 2017-06-19 | 2017-10-24 | 同济大学 | A kind of adaptive eddy current tuned mass damper of self-powered |
| CN108302156A (en) * | 2018-02-06 | 2018-07-20 | 京东方科技集团股份有限公司 | Vibration absorber and conveyer |
| CN110259239A (en) * | 2019-06-19 | 2019-09-20 | 同济大学 | System identification technique and self compensation tuned mass damper |
| CN111997217A (en) * | 2020-08-24 | 2020-11-27 | 南京丹枫机械科技有限公司 | Lever type frequency modulation mass damper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63149446A (en) * | 1986-12-11 | 1988-06-22 | Bridgestone Corp | Vibration isolator |
| CN106245970A (en) * | 2016-08-04 | 2016-12-21 | 上海路博减振科技股份有限公司 | A kind of self-adapting tuning mass damper |
| CN206722124U (en) * | 2017-03-23 | 2017-12-08 | 同济大学 | A kind of current vortex self frequency-changing tuned mass damper |
-
2017
- 2017-03-23 CN CN201710177430.4A patent/CN106836544A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63149446A (en) * | 1986-12-11 | 1988-06-22 | Bridgestone Corp | Vibration isolator |
| CN106245970A (en) * | 2016-08-04 | 2016-12-21 | 上海路博减振科技股份有限公司 | A kind of self-adapting tuning mass damper |
| CN206722124U (en) * | 2017-03-23 | 2017-12-08 | 同济大学 | A kind of current vortex self frequency-changing tuned mass damper |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289066A (en) * | 2017-06-19 | 2017-10-24 | 同济大学 | A kind of adaptive eddy current tuned mass damper of self-powered |
| CN107179515A (en) * | 2017-06-22 | 2017-09-19 | 同济大学 | A kind of eddy current damper health monitoring systems |
| CN108302156A (en) * | 2018-02-06 | 2018-07-20 | 京东方科技集团股份有限公司 | Vibration absorber and conveyer |
| CN110259239A (en) * | 2019-06-19 | 2019-09-20 | 同济大学 | System identification technique and self compensation tuned mass damper |
| CN111997217A (en) * | 2020-08-24 | 2020-11-27 | 南京丹枫机械科技有限公司 | Lever type frequency modulation mass damper |
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