CN206722124U - 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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- CN206722124U CN206722124U CN201720288192.XU CN201720288192U CN206722124U CN 206722124 U CN206722124 U CN 206722124U CN 201720288192 U CN201720288192 U CN 201720288192U CN 206722124 U CN206722124 U CN 206722124U
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Abstract
It the utility model is related 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 sequentially passes through the permanent magnet bar conduit of fixed mass block and variable-quality block center and fixed by nut respectively, lower end, which is extend into, to be opened in the electromagnetism groove for regulation mass center, and the conductor plate relative induction with being arranged in electromagnetism groove is set, 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 utility model have the advantages that quality is adjustable, energy consumption is small, structure is simplified, without extra power, avoid friction, good damping result.
Description
Technical field
Technical field of civil engineering is the utility model is related to, is damped more particularly, to a kind of current vortex self frequency-changing tuning quality
Device.
Background technology
In today's society, tuned mass damper is because there is small to original building structural modification, easy for construction, vibration damping control effect
The advantages that fruit is notable 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 tuning sensitiveness to frequency, not only itself damage of building structure
Wound etc. can influence the effectiveness in vibration suppression of tuned mass damper, sometimes the characteristic of its own, degeneration, bullet such as viscous damper
The corrosion of spring or when quality of a certain component of building structure as tuned mass damper the change of quality can also influence it
Control effect.Moreover, setting the natural frequency of vibration estimate of timing structure and therefore its actual natural frequency of vibration has differences, how to realize
The Self Adaptive Control of tuned mass damper, it is close with the frequency of structure to adjust own frequency in real time, to reach good
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 that rigidity is kept completely separate with what is damped, influences design analysis.Moreover, also there is oil leak, be not easy to support in hydraulic pressure fluid linking damper
Shield, later stage are difficult to the problems such as regulation, increase the difficulty and cost of maintenance.
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, the heat of conductor is converted vibrational energy into, so as to realize vibration control.The advantage of eddy current damper is：Magnet with
Do not contacted directly between conductor, no frictional damping and abrasion；Do not influenceed by environment 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 described above,
Its frequency is caused to be deviated with structure frequency, effectiveness in vibration suppression will greatly decline.
Utility model content
The purpose of this utility model is exactly adjustable in order to provide a kind of quality the defects of overcoming above-mentioned prior art to exist
Section, energy consumption is small, structure is simplified, without extra power, avoid friction, good damping result current vortex self frequency-changing tuning quality damping
Device.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of current vortex self frequency-changing tuned mass damper, it is arranged in building main structure, is realized and subtracted 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, which is extend into, to be opened in the electromagnetism groove for regulation mass center, and with
The conductor plate relative induction being arranged in electromagnetism groove is set, and described spring is set in outside permanent magnet bar, and upper end is with consolidating
Determine mass connection, lower end is connected with for regulation mass, and described servo control division equipments are respectively with variable-quality block and for adjusting
Save mass connection；
When vertical motion occurs for variable-quality block and fixed mass block, permanent magnet bar and the conductor being arranged in electromagnetism groove
Plate sensing produces current vortex, is consumed energy by conductor plate heating, 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 be that one can deposit the container of solid for regulation mass.
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 the quality driver element that mass connects with for regulation mass, the first described acceleration transducer, the second acceleration pass
Sensor and quality driver element communicate with singlechip controller respectively.
Described solid is sand grains or rubble.
Described conductor plate for 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 300-600mm.
Described conductor plate and the spacing of permanent magnet bar lower end are 10-30mm.
Described quality driver element includes magnetic valve and gravel pump.
Compared with prior art, the utility model has advantages below：
First, quality is adjustable, energy consumption is small：Current vortex self frequency-changing tuned mass damper of the present utility model, variable-quality
Block and the quality for adjusting mass can carry out accurate adjustment by servo control division equipments, and need not adjust in real time, only selected
Period carry out, required delivery is small, can accurate adjustment tuned mass damper frequency it is identical with main structure frequency.
2nd, structure it is simplified, without extra power：The utility model can simplify the wind resistance of structure and the analysis design of antidetonation,
Damping force is provided using the damping unit of permanent magnet bar-conductor plate, the defects of improving traditional fluid linking damper, and without extraneous
The energy is provided.
3rd, friction, good damping result are avoided：Certain interval, no frictional damping between permanent magnet bar and conductor plate be present
And abrasion, rigidity and the separation of damping are realized, good endurance, reaches good effectiveness in vibration suppression, while has again and simple, behaviour is installed
Make the advantages of convenient.
Brief description of the drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is top view of the present utility model.
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 adjusting quality
Block, 11, conductor plate, 12, nut, 13, servo control division equipments, 14, electromagnetism groove, 15, main structure.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment：
As Figure 1-3, the utility model provides a kind of current vortex self frequency-changing tuned mass damper, and the damper is by solid
Determine mass 2, variable-quality block 1, permanent magnet bar 4, electromagnetism groove 14, conductor plate 11, spring 3, for regulation mass 10 and servo
Control assembly 13 forms, wherein：
The bottom of spring 3 is connected with for the top of 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, in lower end insertion 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, generated heat and consumed energy by conductor plate 11.
Variable-quality block 1 and for regulation mass 10 be that can deposit the container of solid, variable-quality block 1 and for regulation matter
Quality needed for gauge block 10 is provided by the solid being put into container such as fine sand, sandstone.
Singlechip controller 6 receive and handle 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 of variable-quality block 1 and adjust
Section；
Variable-quality block 1, fixed mass block 2 and the material for adjusting mass 10 can be copper, iron, aluminium etc., and shape can be
Cylinder, cuboid, groove body etc., it highly can be 50 millimeters to 200 millimeters, diameter can be 300 millimeters to 500 millimeters etc., tool
Shape and parameter can respectively according to the quality of actual control structure and frequency-tuning range it needs to be determined that.The utility model can lead to
Overregulate the regulation eddy-current dampings such as the material of permanent magnet bar 4 and conductor plate 11, size and gap size between the two.
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 present utility model is as follows：
When the 1st, installing current vortex self frequency-changing tuned mass damper of the present utility model, toward variable-quality block 1 and for regulation
Appropriate solid is added in mass 10, starts servo control division equipments 13, singlechip controller 6 receives and handles the first acceleration biography
After the signal of 8 and second acceleration transducer of sensor 9, the quality of required regulation disposably can be accurately calculated, and controls quality to drive
Unit 7 disposably completes the quality adjustment of 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 handles the first acceleration transducer 8 and the second acceleration
After spending the signal of sensor 9, the quality of required regulation disposably can be accurately calculated, and controls quality driver element 7 disposably to complete
The quality adjustment of variable-quality block 1, close servo control division equipments 13.
Here description and application of the present utility model are illustrative, are not wishing to the scope of the utility model being limited in
State in embodiment.The deformation and change of embodiments disclosed herein are possible, for the ordinary skill people of those this areas
For member, the replacement of embodiment and equivalent various parts are known.It should be appreciated by the person skilled in the art that do not taking off
In the case of spirit or essential characteristics of the present utility model, the utility model can in other forms, structure, arrangement, ratio,
And realized with other components, material and part., can be to this in the case where not departing from the scope of the utility model and spirit
In disclosed embodiment carry out other deformations and change.
Claims (9)
1. a kind of current vortex self frequency-changing tuned mass damper, it 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 be fixed in main structure (15) for regulation mass (10), in described permanent magnet bar (4)
End sequentially passes through the permanent magnet bar conduit (5) of fixed mass block (2) and variable-quality block (1) center and by nut (12) respectively
Fixed, lower end, which is extend into, to be opened in the electromagnetism groove (14) for regulation mass (10) center, and with being 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) connect, lower end with for adjust mass (10) be connected, described servo control division equipments (13) respectively with it is variable
Mass (1) and confession regulation mass (10) connection；
When vertical motion occurs for variable-quality block (1) and fixed mass block (2), permanent magnet bar (4) is with being arranged on electromagnetism groove
(14) conductor plate (11) sensing in produces current vortex, is consumed energy by conductor plate (11) heating, 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 frequency
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 be that one can deposit the container of solid for regulation mass (10).
A kind of 3. 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.
A kind of 4. current vortex self frequency-changing tuned mass damper according to claim 2, it is characterised in that described solid
For sand grains or rubble.
A kind of 5. current vortex self frequency-changing tuned mass damper according to claim 1, it is characterised in that described conductor
Plate (11) for copper conductors plate or aluminum conductor plate.
A kind of 6. 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.
A kind of 7. 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 300-600mm.
A kind of 8. current vortex self frequency-changing tuned mass damper according to claim 1, it is characterised in that described conductor
Plate (11) and the spacing of permanent magnet bar (4) lower end are 10-30mm.
A kind of 9. 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 |
|---|---|---|---|
| CN201720288192.XU CN206722124U (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 |
|---|---|---|---|
| CN201720288192.XU CN206722124U (en) | 2017-03-23 | 2017-03-23 | A kind of current vortex self frequency-changing tuned mass damper |
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| CN206722124U true CN206722124U (en) | 2017-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836544A (en) * | 2017-03-23 | 2017-06-13 | 同济大学 | A kind of current vortex self frequency-changing tuned mass damper |
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2017
- 2017-03-23 CN CN201720288192.XU patent/CN206722124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836544A (en) * | 2017-03-23 | 2017-06-13 | 同济大学 | A kind of current vortex self frequency-changing tuned mass damper |
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