CN208219895U - A kind of eddy current tuned mass damper of half active variable mass variable damping - Google Patents
A kind of eddy current tuned mass damper of half active variable mass variable damping Download PDFInfo
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- CN208219895U CN208219895U CN201820616301.0U CN201820616301U CN208219895U CN 208219895 U CN208219895 U CN 208219895U CN 201820616301 U CN201820616301 U CN 201820616301U CN 208219895 U CN208219895 U CN 208219895U
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Abstract
A kind of eddy current tuned mass damper of half active variable mass variable damping, belongs to field of vibration control, is made of the tuning quality damping portion of half active variable mass, half active power transformation eddy current damping part and control axis part.The present apparatus converts the vibrational energy of structure to the vibrational energy of the mechanical energy consumption structure of mass block, while converting current vortex for the mechanical energy of mass block, and current vortex generates heat the energy of further consumption s tructure vibration.It is consistent with the instantaneous frequency of structure to adjust the frequency of tuned mass damper that the tuning quality damping portion that control axis part controls half active variable mass changes the quality of mass block in real time.Half active power transformation eddy current damping part of control axis part control simultaneously changes the distance between conductor plate and permanent magnet in real time to adjust eddy-current damping power.Compared with prior art, the present apparatus can control response of the building structure under wind shake and geological process, more preferable to the vibration control effect of structure, improve the safety and reliability of structure.
Description
Technical field
The utility model belongs to civil engineering, structural vibration control technology field, specially a kind of quantitative change of partly actively going bad
The eddy current tuned mass damper of damping.
Background technique
Tuned mass damper is made of mass unit, rigidity unit and damping unit.Tuned mass damper can be given
One reversed inertia force of structure, and vibrational energy is consumed by the damping unit of itself.When being tuned to the frequency one with structure
When cause, tuned mass damper can play optimal effectiveness in vibration suppression.
Fluid linking damper provides damping using hydraulic fluid linking damper and also has certain rigidity while providing damping,
It can not accomplish that rigidity is kept completely separate with what is damped, influence design analysis.Moreover, hydraulic fluid linking damper there is also oil leak, be not easy
Maintenance, later period are difficult to the problems such as adjusting, and increase the difficulty and cost of maintenance.Eddy-current damping is big to the one of hydraulic viscous damping
Innovation.The principle of eddy current damper is, conductor mass block cutting magnetic induction line during exercise, according to faraday electromagnetic induction original
Reason will generate induced electromotive force in conductor, form current vortex, the heat of conductor is converted vibrational energy into, to realize
Vibration control.
The advantage of eddy current damper is: not contacting directly between magnet and conductor, no frictional damping and abrasion；No
It is influenced by environment such as temperature；There is no situations such as oil leaks, easy to maintain and durability is good.
Traditional passive type tuned mass damper is not adjustable inherent parameters, has vibration damping frequency band narrow, quick to frequency tuning
The defects of sense.
Utility model content
The purpose of this utility model is that above-mentioned existing tuned mass damper is overcome to deposit in the way of semi- active control
Defect, propose that a kind of eddy current tuned mass damper of half active variable mass variable damping, semi- active control belong to parameter
Control, using control mechanism come the inner parameter of active adjustment structure, makes structure be in optimal state always.Semi- active control
Compared with active control, a large amount of external input power is not needed, it is only necessary to which a small amount of external input power drives implementation active force
Driver, utilize the relative deformation and speed during structural vibration response, actively as far as possible to realize optimum control.Half is main
Dynamic control has both the advantages of passively controlling simple and easy and economy.
The utility model is achieved through the following technical solutions:
A kind of eddy current tuned mass damper of half active variable mass variable damping, it is characterised in that: actively become including half
The tuning quality damping portion of quality, half active power transformation eddy current damping part and control axis part, in which:
The tuning quality damping portion of the half active variable mass includes bottom plate (2), side plate (3), mass block (4), spring
(5), idler wheel (7), conduit (8), cavity II (13), cavity I (12), duct I (14), duct II (15), pump I (16), pump II
(17), pipeline I (18) and pipeline II (19)；The bottom plate (2) is horizontally fixed on the top floor of building structure, bottom plate (2)
Upper side is equipped with conduit (8)；The side plate (3) has two pieces, is respectively and vertically fixed at the left and right sides of bottom plate (2), and and conduit
(8) vertical；The mass block 4 is arranged on a base plate 2, and mass block 4 is between both side plate 3；The idler wheel (7) is mounted on quality
On the downside of block (4), idler wheel 7 cooperates with conduit 8 to be moved horizontally on a base plate 2 for realizing mass block 4；There are two the springs (5),
It is separately positioned in two gaps between side plate and mass block 4, one end and the mass block of spring are fixed, and the other end is fixed on side
On plate (3)；
The cavity I (12) is provided in mass block 4, position of the cavity II (13) other than mass block；
For the duct I (14) for being connected to cavity I (12) and cavity II (13), the pipeline I (18) is located at duct I (14)
Interior, pump I (16) is located on pipeline I (18) for making the variable-quality body in cavity II (13) enter cavity I (12) to increase
Add the weight of mass block (4)；
For the duct II (15) for being connected to cavity I (12) and cavity II (13), the pipeline II (19) is located at duct II
(15) in, pump II (17) is located on pipeline II (19) for making the variable-quality body in cavity I (12) enter cavity II
(13) to reduce the weight of mass block (4).
The half active power transformation eddy current damping part is located at the front and back side of mass block 4, including permanent magnet in symmetrical structure
(6), conductor plate (9), magnetic conductive steel plate (10) and actuator (11)；The permanent magnet (6) is symmetrically adsorbed on side before and after mass block (4)
On face, magnetic field is formed；The conductor plate (9) is bonded fixation with magnetic conductive steel plate (10), be located at bottom plate (2) periphery, and with it is described forever
There are spacing between magnet (6), for generating inductive loop electricity；The actuator (11) and conductor plate (9), magnetic conductive steel plate (10)
It is fixed for adjusting their spacing between permanent magnet (6).
The control axis part includes acceleration transducer I (20), acceleration transducer II (21) and controller
(22), the acceleration transducer I (20) is mounted on side plate (3) for monitoring the acceleration of mass block 4, and the acceleration passes
Sensor II (21) is mounted on the acceleration that monitoring of structures is used on top floor (1)；The acceleration transducer I (20) accelerates
Degree sensor II (21) is connected to controller 22 for the acceleration information of acquisition to be supplied to controller 22；Controller 22 is to adopting
Collection data export after being processed, the work that real-time control pumps I (16), pumps II (17) and actuator (11).
The mass block (4) drives the permanent magnet (6) being adsorbed on its front and back side, so that permanent magnet (6) and conductor plate
(9) generated between horizontally relative motion realize by the vibrational energy of input to the conversion of kinetic energy consume, while permanent magnet (6) with
Conductor plate (9) induction generates vortex electricity, further consumes vibrational energy by the fever of conductor plate (9)；
The control axis part is by real-time control pump I (16) and pumps the tune for II (17) realizing double of active variable mass
The adjusting of mass block (4) actually active quality in humorous Tuned mass damper part, while it is realized by control actuator (11) and is exchanged
Save the distance between conductor plate (9) and permanent magnet (6).
Above technical scheme, the half active variable mass part can change the quality of mass block (4) in real time to adjust
The frequency of tuned mass damper and the instantaneous frequency of structure are consistent.
Above technical scheme, the half active power transformation eddy current damping part can change conductor plate (9) and permanent magnetism in real time
The distance between body (6) is to adjust eddy-current damping power.
The beneficial effects of the utility model are:
1, the utility model proposes the eddy current tuned mass damper of half active variable mass variable damping can control and build
Vibratory response of the building structure under wind shake and geological process, using mass block itself damping unit consumption s tructure energy it is same
When, horizontally opposite fortune is generated between the mobile drive of the mass block permanent magnet (6) being adsorbed on its side wall and conductor plate (9)
Dynamic, permanent magnet (6) and conductor plate (9) induction generate vortex electricity, consume vibrational energy by the fever of conductor plate (9), simplify knot
The analysis and design of structure and damper.
2, damping force is provided using permanent magnet-conductor plate damping unit, improves the defect of traditional fluid linking damper.It adopts
It is good to the vibration control effect of structure with semi- active control, it can be improved the safety and reliability of structure.
Detailed description of the invention
Fig. 1 is the top view of the eddy current tuned mass damper of half active variable mass variable damping；
Fig. 2 is the main view of the eddy current tuned mass damper of half active variable mass variable damping；
Fig. 3 is the control flow chart of the eddy current tuned mass damper of half active variable mass variable damping.
Figure label: 1- top floor, 2- bottom plate, 3- side plate, 4- mass block, 5- spring, 6- permanent magnet, 7- idler wheel, 8-
Conduit, 9- conductor plate, 10- magnetic conductive steel plate, 11- actuator, 12- cavity I, 13- cavity II, 14- duct I, the duct 15- II, 16-
I is pumped, 17- pumps II, 18- pipeline I, 19- pipeline II, 20- acceleration transducer I, 21- acceleration transducer II, 22- controller.
Specific embodiment
Further explanation is made to the utility model with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of eddy current tuned mass damper of half active variable mass variable damping, including half active
The tuning quality damping portion of variable mass, half active power transformation eddy current damping part and control axis part composition.
The tuning quality damping portion of the half active variable mass includes bottom plate 2, side plate 3, mass block 4, spring 5, rolling
Wheel 7, conduit 8, cavity II 13, cavity I 12, duct I 14, duct II 15, pump I16, pump II 17, pipeline I 18 and pipeline
II 19.2 level of bottom plate is welded on the top floor 1 of building structure, and the side plate 3 is vertically welded in the left and right two of bottom plate 2
Side.The conduit 8 is provided with the upside of bottom plate 2, and conduit 8 is perpendicular to side plate 3.The mass block 4 is arranged between both side plate 3
Bottom plate 2 on, it is spaced between mass block 4 and two side plates 3；The idler wheel 7 is mounted on 4 downside of mass block, idler wheel 7 and slot
The cooperation of road 8 moves left and right on a base plate 2 for realizing mass block 4；There are two the springs 5, is arranged in mass block 4 and side
In the interval that plate 3 is formed, the both ends of spring 5 are fixed with mass block 4 and side plate 3 respectively.
The cavity II 13 is provided on top floor 1, and cavity II 13 is in the underface of bottom plate 2, the cavity I
12 are provided in mass block 4, are filled with variable-quality body in cavity II 13 and cavity I 12, the variable-quality body can for water,
Sand, gravel etc., using water as variable-quality body in the present embodiment.The duct I 14 is located at 4 bottom of mass block for being connected to
Cavity I 12 and cavity II 13, the pipeline I 18 are located in duct I 14, and the both ends of pipeline I 18 are respectively in 12 He of cavity I
In cavity II 13.The pump I 16 is located in cavity I 12, and with the installation connection of pipeline I 18 for making in cavity II 13
Water is pumped into the weight for increasing mass block 4 in cavity I 12.
The duct II 15 is located at 4 bottom of mass block for being connected to cavity I 12 and cavity II 13, the pipeline II 19
It is located in duct II 15, the both ends of pipeline II 19 are respectively in cavity I 12 and cavity II 13.The pump II 17 is located at chamber
In body II 13, and with the installation connection of pipeline II 19 for making the water in cavity I 12 enter cavity II 13 to reduce mass block 4
Weight.The specific configuration and size of the tuned mass damper part of half active variable mass can according to engineering practice and
It is fixed.
As shown in Figure 1, the half active power transformation eddy current damping part is by permanent magnet 6, conductor plate 9,10 and of magnetic conductive steel plate
The composition such as actuator 11.6 material of permanent magnet can be right for rare earth permanent-magnetic material, ferrite permanent-magnet materials and cupro-nickel iron etc.
Claim uniform adsorption on the front and back sides of mass block 4, forms magnetic field.The conductor plate 9 is bonded fixation with magnetic conductive steel plate 10, symmetrically
2 periphery of bottom plate is arranged, and spaced between permanent magnet 6, side plate, for generating inductive loop electricity.Actuator 11 is by conductor
Plate 9 and magnetic conductive steel plate 10 are fixed, for adjusting conductor plate 9 and the distance between magnetic conductive steel plate 10 and permanent magnet 6.9 material of conductor plate
Matter is using copper, aluminium etc..
The control axis part includes acceleration transducer I 20, acceleration transducer II 21 and controller 22.Institute
It states acceleration transducer I 20 and is mounted on the acceleration for being used for monitoring of structures on side plate 3, the acceleration transducer II 21 is installed
The acceleration of monitoring of structures is used on top floor 1；The controller respectively with acceleration transducer I 20, acceleration sensing
The connection of device II 21 is for receiving data and the processing of acceleration transducer, controller 22 and pump I 16, pump II 17 and actuator
11 connections are for controlling pump and 11 real-time working of actuator.
The present apparatus is when encountering vibration:
The vibrational energy of structure is converted to the machinery of mass block 4 by the tuning quality damping portion of the half active variable mass
The mass block 4 that the energy of consumption s tructure can be reached, while being moved left and right drives the permanent magnet 6 or so being adsorbed on its side wall to move
It is dynamic, horizontally relative motion is generated between permanent magnet 6 and conductor plate 9, is incuded permanent magnet 6 with conductor plate 9 and is produced on conductor plate
Raw vortex electricity consumes vibrational energy by the fever of conductor plate 9.
Acceleration transducer I detection collects the acceleration of mass block and feeds back to controller 22, acceleration transducer II 21
It detects the acceleration of collection structure and feeds back to controller 22, controller receives the signal of two acceleration transducers, according to interior
Set algorithm control pump I 16, pump II 17 and actuator 11.Controller real-time control pump I 16 and pump II 17 are changed quality
4 mass of block is consistent with the instantaneous frequency of structure with the frequency for adjusting tuned mass damper.Controller real-time control actuator 11
The adjusting of distance between conductor plate 9 and permanent magnet 6 is carried out to change the distance between conductor plate 9 and permanent magnet 6 in real time to adjust
Eddy-current damping power.
Here the description and application of the utility model are illustrative, are not wishing to for the scope of the utility model being limited in
It states in embodiment.The deformation and change of embodiments disclosed herein be it is possible, for the ordinary skill people of those this fields
For member, the replacement of embodiment and equivalent various parts are well known.It should be appreciated by the person skilled in the art that not taking off
In the case where spirit or essential characteristics from the utility model, the utility model can in other forms, structure, arrangement, ratio,
And it is realized with other components, material and component.It, 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 (4)
1. a kind of eddy current tuned mass damper of half active variable mass variable damping, it is characterised in that: actively rotten including half
The tuning quality damping portion of amount, half active power transformation eddy current damping part and control axis part, in which:
The tuning quality damping portion of the half active variable mass include bottom plate (2), side plate (3), mass block (4), spring (5),
Idler wheel (7), conduit (8), cavity II (13), cavity I (12), duct I (14), duct II (15), pump I (16), pump II (17), pipe
Road I (18) and pipeline II (19)；The bottom plate (2) is horizontally fixed on the top floor of building structure, and bottom plate (2) upper side is set
There are conduit (8)；The side plate (3) has two pieces, is respectively and vertically fixed at the left and right sides of bottom plate (2), and vertical with conduit (8)；
The mass block (4) is arranged on bottom plate (2), and mass block (4) is between both side plate (3)；The idler wheel (7) is mounted on quality
On the downside of block (4), idler wheel (7) cooperates with conduit (8) to be moved horizontally on bottom plate (2) for realizing mass block (4)；The spring
(5) it there are two, is separately positioned in two gaps between side plate (3) and mass block (4), one end of spring (5) and mass block
(4) fixed, the other end is fixed on side plate (3)；The cavity I (12) is provided in mass block (4), and the cavity II (13) exists
Position other than mass block；For being connected to cavity I (12) and cavity II (13), the pipeline I (18) is located at the duct I (14)
In duct I (14), pump I (16) is located on pipeline I (18) for making the variable-quality body in cavity II (13) enter cavity I
(12) to increase the weight of mass block (4)；The duct II (15) is for being connected to cavity I (12) and cavity II (13), the pipe
Road II (19) is located in duct II (15), and pump II (17) is located on pipeline II (19) variable in cavity I (12) for making
Mass body enters cavity II (13) to reduce the weight of mass block (4).
2. the eddy current tuned mass damper of half active variable mass variable damping according to claim 1, it is characterised in that:
The half active power transformation eddy current damping part is located at the front and back side of mass block (4) in symmetrical structure, including permanent magnet (6), leads
Body plate (9), magnetic conductive steel plate (10) and actuator (11)；The permanent magnet (6) is symmetrically adsorbed on mass block (4) front and back sides,
Form magnetic field；The conductor plate (9) is bonded fixation with magnetic conductive steel plate (10), be located at bottom plate (2) periphery, and with the permanent magnet
(6) there are spacing between, for generating inductive loop electricity；The actuator (11) and conductor plate (9), magnetic conductive steel plate (10) are fixed
For adjusting their spacing between permanent magnet (6).
3. the eddy current tuned mass damper of half active variable mass variable damping according to claim 1, it is characterised in that:
The control axis part includes acceleration transducer I (20), acceleration transducer II (21) and controller (22), it is described plus
Velocity sensor I (20) is mounted on side plate (3) for monitoring the acceleration of mass block (4), the acceleration transducer II
(21) it is mounted on the acceleration that monitoring of structures is used on top floor (1)；The acceleration transducer I (20), acceleration sensing
Device II (21) is connected to controller (22) for the acceleration information of acquisition to be supplied to controller (22)；Controller (22) is to adopting
Collection data export after being processed, the work that real-time control pumps I (16), pumps II (17) and actuator (11).
4. the eddy current tuned mass damper of half active variable mass variable damping according to claim 2 or 3, feature exist
In: the mass block (4) drives the permanent magnet (6) being adsorbed on its front and back side, so that between permanent magnet (6) and conductor plate (9)
It generates horizontally relative motion realization and consumes the vibrational energy of input to the conversion of kinetic energy, while permanent magnet (6) and conductor
Plate (9) induction generates vortex electricity, further consumes vibrational energy by the fever of conductor plate (9)；
The control axis part is by real-time control pump I (16) and pumps the tuning matter for II (17) realizing double of active variable mass
The adjusting of mass block (4) actually active quality in damping portion is measured, while it is realized by control actuator (11) and is led to adjusting
The distance between body plate (9) and permanent magnet (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820616301.0U CN208219895U (en) | 2018-04-27 | 2018-04-27 | A kind of eddy current tuned mass damper of half active variable mass variable damping |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820616301.0U CN208219895U (en) | 2018-04-27 | 2018-04-27 | A kind of eddy current tuned mass damper of half active variable mass variable damping |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855190A (en) * | 2019-04-09 | 2019-06-07 | 珠海格力电器股份有限公司 | Vibration reduction structure and air conditioner outdoor unit with same |
| CN111981084A (en) * | 2020-08-21 | 2020-11-24 | 电子科技大学 | Eddy current damper |
| CN112647609A (en) * | 2020-12-18 | 2021-04-13 | 中铁大桥局集团有限公司 | Self-adaptive variable mass tuned mass damper |
| CN113309249A (en) * | 2021-06-11 | 2021-08-27 | 福建省坤亿建设集团有限公司 | Shock isolation device for building |
-
2018
- 2018-04-27 CN CN201820616301.0U patent/CN208219895U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855190A (en) * | 2019-04-09 | 2019-06-07 | 珠海格力电器股份有限公司 | Vibration reduction structure and air conditioner outdoor unit with same |
| CN111981084A (en) * | 2020-08-21 | 2020-11-24 | 电子科技大学 | Eddy current damper |
| CN111981084B (en) * | 2020-08-21 | 2021-05-18 | 电子科技大学 | Eddy current damper |
| CN112647609A (en) * | 2020-12-18 | 2021-04-13 | 中铁大桥局集团有限公司 | Self-adaptive variable mass tuned mass damper |
| CN113309249A (en) * | 2021-06-11 | 2021-08-27 | 福建省坤亿建设集团有限公司 | Shock isolation device for building |
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