CN107762229B - The current vortex dissipative damping device of controlled level and torsional direction - Google Patents
The current vortex dissipative damping device of controlled level and torsional direction Download PDFInfo
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- CN107762229B CN107762229B CN201711166846.2A CN201711166846A CN107762229B CN 107762229 B CN107762229 B CN 107762229B CN 201711166846 A CN201711166846 A CN 201711166846A CN 107762229 B CN107762229 B CN 107762229B
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- mass block
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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
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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
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
Abstract
The invention discloses the current vortex dissipative damping devices of a kind of controlled level and torsional direction, including a babinet, a tuned mass damper (TMD) is connected in the top surface of babinet, TMD includes a vertical cantilever pipe, in cantilever pipe lower end, level interts two round bars, bottom end connects a mass block, two round bar square crossings, both ends are separately connected a mass block, it is separately connected conductor plate five mass block bottom ends, five permanent magnets are corresponded to below is connected to tank floor, horizontal damping net and vertical damping screen are installed inside mass block, horizontal damping net is fixed on mass block inner wall, vertical damping screen one end is fixed on mass block bottom, another section is fixed with horizontal damping net, liquid is housed inside mass block.
Description
Technical field
The invention belongs to tall and slender structure vibration damping control field, more particularly to the current vortex of a kind of controlled level and torsional direction
Dissipative damping device can be used for vibration damping in civil engineering structure and control.
Background technology
Epoch now, the tall and slender structures such as power transmission tower, communication tower grow rapidly, vibration problem obtained widely concern with
Research.The primary load that tall and slender structure is born includes dead load, equipment weight, wind load and geological process, and due to it
Height is higher, cross section is relatively small, the rigidity of structure is less than normal, easy tos produce vibration by a relatively large margin, occurs so as to cause structure
Fatigue damage or destruction increase the vulnerability of structure, therefore, vibration control of the tall and slender structure under wind load and geological process
Problem at structural engineering field in recent years hot issue.Exploitation design one kind can reduce tall and slender structure in wind load and ground
The vibration absorber of the lower dynamic respons of shake effect, has important practical significance to total construction industry.
Currently used vibration control technology can be divided into passive control, active control, semi- active control, intelligent control and
Mixing control.The method wherein passively controlled includes mainly the methods of weakening, vibration isolation, dynamic absorber and damping vibration attenuation.Damper
It is to provide the resistance of movement, by the energy conversion of structural vibration at thermal energy or other energy that can be lost, to reduce knot
The response of structure achievees the purpose that passive energy dissipation, includes mainly metal energy-dissipation damper, friction energy-dissipating damper, viscoelastic damping
Device and viscous damper.Tuned mass damper (Tuned Mass Damper, abbreviation TMD) is a kind of passive vibration damping control dress
It sets, is mounted in structure, using resonance principle, the vibration energy absorption of agent structure is transferred on control device, to subtract
Few vibratory response of the structure under wind load and geological process.By adjusting the intrinsic frequency of damper, make itself and agent structure
Basic frequency it is almost the same, when agent structure is vibrated under wind load and geological process, damper can shake in agent structure
Generated on dynamic direction one in the opposite direction inertia force hinder the vibration of agent structure, to reaching vibration control effect.It adjusts
Humorous liquid condenser (Tuned Liquid Damper, abbreviation TLD) is a kind of passive dissipative damping device, utilizes fixed water tank
In liquid provide damping effect shaking the dynamic side force that generates in the process, while liquid motion also will produce inertia force, from
And the vibration damping control action of TLD is formd, with simple structure, installation is easy, automatic to activate performance good, need not start dress
The advantages that setting.
Current damping control device mostly uses greatly single mode and carries out vibration damping, and can only control shaking for a direction
It is dynamic.In actual environment, vibratory response of the structure under wind load or geological process is various dimensions, therefore, single mode with
The vibration damping control mode effect of single direction is not notable and uneconomical.
Invention content
It is an object of the present invention to provide the current vortex dissipative damping devices of a kind of controlled level and torsional direction, mainly for defeated
The Vibration Control of High-rising Buildings such as pylon, communication tower, it is intended to it is horizontal and torsional direction under wind load and geological process to reduce it
Dynamic respons, the present invention convert the energy that dynamic excitation obtains to it by tuning liquid and tuning quality vibration damping two ways
The energy of his form, to achieve the effect that oscillation damping and energy dissipating.
To achieve the above object, the present invention uses following technical proposals：
The current vortex dissipative damping device of controlled level and torsional direction, including a babinet, in the top surface of the babinet
A tuned mass damper (TMD) is connected, the TMD includes a vertical cantilever pipe for being suspended on top of the box,
The cantilever pipe lower end level interts two round bars, and the bottom end of cantilever pipe connects a mass block；Two circles
Bar square crossing, and both ends are separately connected a mass block；It is separately connected conductor plate five mass block bottom ends, at the bottom of babinet
Face and five conductor plates are opposing upper and lower to set that there are five permanent magnets, first three rank mode of the tuned mass damper is horizontal pendulum
Dynamic and torsion, it is identical as the mode of controlled structure, pass through the length and rigidity of the adjusting cantilever pipe and the round bar
The distance between both ends mass block makes the swing of TMD and torsional frequency are consistent with controlled structure respectively, realizes resonance characteristics,
Absorbing effectiveness in vibration suppression to be optimal, and relative motion, root occur in swing process with permanent magnet for the mass block
Current vortex can be generated in the conductor plate of mass block bottom end according to electromagnetic induction principle, and mass block can be hindered by electromagnetic resistance
Relative motion, the vibrational energy for being controlled structure in the process are converted into resistance thermal energy and consume, and have preferable absorbing energy consumption effect
Fruit.
Further, installation horizontal damping net and vertical damping screen, the horizontal damping net inside the mass block
It is fixed on mass block inner wall, described vertical damping screen one end is fixed on mass block bottom, and another section solid with horizontal damping net
It is fixed, liquid is housed, when the vibrational energy of controlled structure is transmitted to mass block, internal liquid shakes, and liquid is logical inside mass block
Overdamp net dissipation power potential energy, while the power water pressure energy that liquid sloshing generates plays the role of vibration damping control, in this process
In be controlled the vibrational energy of structure and be converted into and dissipated because rubbing, colliding the thermal energy consumption of generation, reach preferable passive energy dissipation effect.
Further, the body structure is made of insulation resistant material, can prevent extraneous complicated ring
The variation in border.
Further, the cantilever pipe is made of marmem (SMA) material, which has high resistant
Buddhist nun, Self-resetting characteristic, the round bar is all made of galvanized copper with mass block and is made, corrosion-resistant, and magnetic conductivity is small, is not easy by magnetic
Iron attracts, and the conductor plate uses aluminium sheet, and electric conductivity is strong, and the vortex of generation is big, and thermal diffusivity is good, and the permanent magnet can produce
Raw continual and steady magnetic field.
Further, multiple mesh are uniformly distributed on the horizontal damping net and vertical damping screen, the mesh is side
Shape, and the length of side of mesh can be realized by the height and mesh size of adjusting damping screen and adjust tuning liquid resistance in 20mm or so
The damping ratio of Buddhist nun's device, the damping ratio being optimal, while there is wider damping ratio adjustable range.
Further, Finite element analysis results are shown, first three rank mode of the tuned mass damper is level side
To swing and torsion, it is identical as controlled structure.
Further, the frequency of tuned mass damper horizontal huntingIn formula, K is the rigid of cantilever pipe
Degree, m are the quality of damper.
Further, the length and rigidity that the frequency of the tuned mass damper horizontal hunting passes through change cantilever pipe
It adjusts, torsional frequency is adjusted by changing the distance between round bar both ends mass block.
Further, first three order frequency of the tuned mass damper is adjusted to first three rank frequency in controlled structure
Rate is close, and " close " described here refers to the difference scope control of frequency in 5% range.
Further, the current vortex dissipative damping device of the controlled level and torsional direction is fixed on towering knot
The top of structure.
Working principle of the present invention is as follows：
The present invention is fixed on the top of tall and slender structure, under earthquake or wind action, is controlled structure and occurs to swing or turn round
When turning, tuned mass damper is driven to vibrate together, since damper and the vibration frequency of controlled structure are almost the same, is controlled knot
The vibrational energy of structure is transmitted on damper, and the mass block on damper is sent out in swing process with the permanent magnet of the bottom of box
Raw relative motion can generate current vortex according to electromagnetic induction principle in the conductor plate of mass block bottom end, and mass block can be by
Relative motion is hindered to electromagnetic resistance；In addition, in mass block vibration processes, internal liquid is dissipated power potential by damping screen
Can, while the power water pressure energy that liquid sloshing generates plays the role of vibration damping control, is controlled the vibrational energy of structure in the process
Amount be eventually converted into resistance thermal energy with because the thermal energy for rubbing, colliding generation is consumed.
Beneficial effects of the present invention are as follows：
(1) first three rank mode of the invention is identical as the mode of tall and slender structure, can pass through the ginseng of the adjusting present apparatus itself
Number makes its vibration frequency be consistent with controlled structure, generation resonance characteristics, can the vibrational energy of controlled structure is more
It is transmitted in the present apparatus, to absorb more kinetic energy, shock attenuation result is notable, and the present apparatus belongs to passive control scope, nothing
External energy is needed to input, technology is easy, and cost is honest, and actual application ability is strong.
(2) present invention utilizes electromagnetic induction principle, by the relative motion between conductor plate and permanent magnet, in conductor plate
Countless current vortexs is generated, in addition, the liquid inside mass block is by damping screen dissipation power potential energy, while liquid sloshing generates
Power hydraulic pressure act on mass block inner wall, so that vibrational energy is eventually converted into resistance heat and heat because rubbing, colliding generation
It can be consumed.
(3) the cantilever pipe in the present invention is made of marmem (SMA), and the damping for improving the device is special
Property, while the self-resetting capability of SMA improves the service life of the device.
(4) damping screen is installed inside mass block improves the damping ratio of the present apparatus, passes through the height and net for adjusting damping screen
Pore size realizes the damping ratio for adjusting Tuned Liquid, the damping ratio being optimal, while having wider damping ratio tune
Adjusting range.
(5) the present invention is directed to reduce tall and slender structure under earthquake or wind action to ring in horizontal and torsional direction vibration
Answer, to realize different directions vibration damping control, can preferably play a protective role to tall and slender structures such as power transmission towers, generate compared with
Good economic benefit and social benefit.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 (a) is the finite element model of tuned mass damper, and Fig. 1 (b), Fig. 1 (c), Fig. 1 (d) damp for tuning quality
First three rank mode of oscillation schematic diagram of device；
Fig. 2 is the schematic three dimensional views of the current vortex dissipative damping device of controlled level and torsional direction；
Fig. 3 is mass block internal structure schematic diagram；
Fig. 4 is the front view of the current vortex dissipative damping device of controlled level and torsional direction；
Fig. 5 is the side view of the current vortex dissipative damping device of controlled level and torsional direction；
Fig. 6 is the vertical view of the current vortex dissipative damping device of controlled level and torsional direction；
In figure：1 babinet, 2 cantilever pipes, 3 round bars, 4 mass blocks, 5 conductor plates, 6 permanent magnets, 7 horizontal damping nets, 8 is vertical
Damping screen, 9 liquid.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
As background technology is introduced, current damping control device mostly uses greatly single mode and carries out vibration damping, and
The vibration of a direction can only be controlled.In actual environment, vibratory response of the structure under wind load or geological process is multidimensional
Degree, therefore, the vibration damping control mode effect of single mode and single direction is not notable and uneconomical, as above in order to solve
Technical problem, the present invention propose a kind of device that comprehensive vibration damping controls under wind load and geological process to tall and slender structure, will
TMD effectively combines in TLD and in conjunction with the principle of eddy current effect, can be simultaneously to the level and torsional direction of structure
Carry out vibration damping control.
In a kind of typical embodiment of the application, as shown in Figure 1,
Current vortex dissipative damping device such as Fig. 1, Fig. 2, Fig. 3, Fig. 4 of controlled level proposed by the present invention and torsional direction,
Shown in Fig. 5, Fig. 6, which may be mounted at the top of tall and slender structure.Concrete structure is as follows：The dissipative damping device is by one
The horizontal resistance of 4, five pieces of the mass block conductor plate 5, five of round bar 3, five of cantilever pipe 2, two of babinet 1, one permanent magnet 6, five
The vertical damping screen 8 of 7, five, Buddhist nun's net and liquid 9 are constituted, and concrete structure is as follows：
A tuned mass damper (TMD) is connected in the top surface of babinet 1, the TMD includes a vertical cantilever
Pipe 2 interts two round bars 3 in 2 lower end level of cantilever pipe, and bottom end connects a mass block 4, and described two round bars 3 hang down
Straight to intersect, both ends are separately connected a mass block 4, conductor plate 5 are separately connected in five 4 bottom ends of mass block, below it is right
Five permanent magnets 6 are answered to be connected to 1 bottom surface of babinet, the 4 inside installation horizontal damping net 7 of mass block and vertical damping screen 8, institute
The horizontal damping net 7 stated is fixed on mass block inner wall, and described 8 one end of vertical damping screen is fixed on 4 bottom of mass block, another
Section is fixed with horizontal damping net 7, and 4 inside of mass block is equipped with liquid 9；
First three rank mode of tuned mass damper be horizontal hunting and torsion, it is identical as the mode of controlled structure, pass through
The length and rigidity for adjusting the cantilever pipe make tuning quality respectively with the distance between the round bar both ends mass block
The swing of damper and torsional frequency are consistent with controlled structure, realize resonance characteristics, the absorbing vibration damping to be optimal
Effect, and in swing process with permanent magnet relative motion occurs for the mass block, it can be in quality according to electromagnetic induction principle
Current vortex is generated in the conductor plate of block bottom end, and mass block can be hindered relative motion by electromagnetic resistance, in the process by
The vibrational energy of control structure is converted into resistance thermal energy and consumes, and has preferable absorbing energy consumption effect.
Further, babinet 1 is made of insulation resistant material, can prevent the variation of extraneous complex environment.
Further, the top surface of babinet 1 connects a tuned mass damper (TMD).
Further, tuned mass damper includes a vertical cantilever pipe 2, and lower end level interts two round bars
3, bottom end connects a mass block 4, and round bar both ends are separately connected a mass block 4, and five 4 bottom ends of mass block are all connected with conductor plate
5, five permanent magnets 6 are corresponded to below is connected to 1 bottom end of babinet.
Further, cantilever pipe 2 is made of marmem (SMA) material, which has high-damping, runback
The characteristic of position, round bar 3 is all made of galvanized copper with mass block 4 and is made, corrosion-resistant, and magnetic conductivity is small, is not easy to be attracted by magnet, conductor
Plate 5 uses aluminium sheet, and electric conductivity is strong, and the vortex of generation is big, and thermal diffusivity is good, and permanent magnet 6 can generate continual and steady magnetic field.
Further, 4 inside installation horizontal damping net 7 of mass block and vertical damping screen 8, horizontal damping net 7 are fixed on matter
On 4 inner wall of gauge block, 8 one end of vertical damping screen is fixed on 4 bottom of mass block, and the other end is fixed with horizontal damping net 7, mass block 4
Inside is equipped with liquid 9.
Further, multiple mesh are uniformly distributed on horizontal damping net 7 and vertical damping screen 8, mesh is the rectangular and length of side
In 20mm or so, it can realize the damping ratio for adjusting Tuned Liquid by the height and mesh size of adjusting damping screen, reach
To optimal damping ratio, while there is wider damping ratio adjustable range.
Further, Finite element analysis results are shown, first three rank mode of tuned mass damper is the pendulum of horizontal direction
Dynamic and torsion, it is identical as controlled result.
Further,In formula, f is the frequency of tuned mass damper horizontal hunting, and K is cantilever pipe 2
Rigidity, m be damper quality.
Further, the length and rigidity tune that the frequency of tuned mass damper horizontal hunting passes through change cantilever pipe 2
Section, torsional frequency are adjusted by changing the distance between round bar both ends mass block 4.
Further, first three order frequency of tuned mass damper is adjusted to connects in first three order frequency for being controlled structure
Closely, " close " described here refers to the difference scope control of frequency in 5% range.
Further, the current vortex dissipative damping device of controlled level and torsional direction is fixed on the top of tall and slender structure
Portion.
When work, babinet 1 is fixed on the top of tall and slender structure, and under earthquake or wind action, controlled structure is put
When dynamic or torsion, tuned mass damper is driven to vibrate together, the mass block 4 on damper in swing process with 1 bottom of babinet
Relative motion occurs for the permanent magnet 6 in portion, and current vortex can be generated in the conductor plate 5 of mass block bottom end according to electromagnetic induction principle,
And mass block 4 can be hindered relative motion by electromagnetic resistance；In addition, in 4 vibration processes of mass block, internal liquid 9 passes through
Damping screen 7,8 dissipation power potential energy, while liquid 9 shakes the power water pressure energy generated and plays the role of vibration damping control, herein mistake
In journey be controlled structure vibrational energy be eventually converted into resistance thermal energy with because the thermal energy for rubbing, colliding generation is consumed.
In order to reach best effectiveness in vibration suppression, the following aspects is needed to pay attention in the present embodiment：
First：Reasonably the length of selection cantilever pipe adjusts with rigidity and reasonably the distance between mass block, is
The swing of tuned mass damper and torsional frequency are consistent as far as possible with controlled structure；Second：Reasonably select conductor plate
Material, make it have preferable electric conductivity and thermal diffusivity, reach preferably energy consumption effect；Third：Select marmem
(SMA), damper is optimized using its high-damping, the characteristic of Self-resetting, extends the service life of damping control device；The
Four：The liquid inside mass block is reasonably selected, outdoor complex environment can be coped with and is capable of providing maximum resistance
Buddhist nun's ratio reasonably selects the size of damping screen mesh, reaches best passive energy dissipation effect；5th：The device is adapted for mount on
Dynamic respond maximum when tall and slender structure vibrates, so that the device preferably plays its vibration damping control action.
The present invention is realized by tuned mass damper and controlled structure and is resonated, and the vibrational energy of controlled structure is transmitted to
On damper, achieve the purpose that absorbing, and electromagnetic energy-consumption principle is applied to collide general with liquid by damping screen and with mass block wall
Energy dissipation is fallen, to reach best oscillation damping and energy dissipating effect.TMD is effectively combined in TLD and in conjunction with electricity by the present invention
The principle of eddy current effect realizes the effect for carrying out vibration damping in horizontal and torsional direction to structure.
The embodiment above of the present invention is not limiting the scope of the present invention, and embodiments of the present invention are unlimited
In this, all such the above according to the present invention are not departing from this according to the ordinary technical knowledge and customary means of this field
Under the premise of inventing above-mentioned basic fundamental thought, modification, replacement or change to other diversified forms that above structure of the present invention is made
More, it should all fall within the scope and spirit of the invention.
Claims (8)
1. the current vortex dissipative damping device of controlled level and torsional direction, it is characterised in that：Including a babinet, in the case
The top surface of body connects a tuned mass damper, and the tuned mass damper is suspended on top of the box vertically including one
Cantilever pipe, the cantilever pipe lower end level intert two round bars, bottom end connect a mass block, described two
Round bar square crossing, both ends are separately connected a mass block, conductor plate are separately connected five mass block bottom ends, at the bottom of babinet
Face and five conductor plates are opposing upper and lower to set that there are five permanent magnets；First three rank mode of the tuned mass damper is horizontal pendulum
Dynamic and torsion, it is identical as the mode of controlled structure, pass through the length and rigidity of the adjusting cantilever pipe and the round bar
The distance between both ends mass block makes the swing of tuned mass damper and torsional frequency are consistent with controlled structure respectively；
Installation horizontal damping net and vertical damping screen, the horizontal damping net are fixed in mass block inside the mass block
On wall, described vertical damping screen one end is fixed and mass block bottom, and another section is fixed with horizontal damping net, dress inside mass block
There is liquid；It is uniformly distributed multiple mesh on the horizontal damping net and vertical damping screen, the mesh is rectangular, and mesh
The length of side is in 20mm or so.
2. the current vortex dissipative damping device of controlled level as described in claim 1 and torsional direction, it is characterised in that：It is described
Body structure using insulation resistant material make, the variation of extraneous complex environment can be prevented.
3. the current vortex dissipative damping device of controlled level as described in claim 1 and torsional direction, it is characterised in that：It is described
Cantilever pipe be made of shape memory alloy material；The cantilever pipe is all made of galvanized copper with mass block and is made.
4. the current vortex dissipative damping device of controlled level as described in claim 1 and torsional direction, it is characterised in that：It is described
Conductor plate use aluminium sheet；The permanent magnet can generate continual and steady magnetic field.
5. the current vortex dissipative damping device of controlled level and torsional direction as described in claim 1, it is characterised in that：Tuning
The frequency of mass damper horizontal huntingIn formula, the rigidity of K cantilever pipes, m is the quality of damper.
6. the current vortex dissipative damping device of controlled level as described in claim 1 and torsional direction, it is characterised in that：It is described
The frequency of tuned mass damper horizontal hunting is by the length and stiffness tuning of change cantilever pipe, and torsional frequency is by changing
Become the distance between round bar both ends mass block to adjust.
7. the current vortex dissipative damping device of controlled level as described in claim 1 and torsional direction, it is characterised in that：It is described
First three order frequency of tuned mass damper to be adjusted to first three order frequency in controlled structure close.
8. the current vortex dissipative damping device of controlled level as described in claim 1 and torsional direction, it is characterised in that：It is described
Controlled level and the current vortex dissipative damping device of torsional direction be fixed on the top of tall and slender structure.
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| CN201711166846.2A CN107762229B (en) | 2017-11-21 | 2017-11-21 | The current vortex dissipative damping device of controlled level and torsional direction |
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| CN201711166846.2A CN107762229B (en) | 2017-11-21 | 2017-11-21 | The current vortex dissipative damping device of controlled level and torsional direction |
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| CN107762229B true CN107762229B (en) | 2018-07-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108560451B (en) * | 2018-05-29 | 2020-04-17 | 东南大学 | Guardrail anti-collision device utilizing eddy current |
| DE102018218999A1 (en) * | 2018-11-07 | 2020-05-07 | Maurer Engineering Gmbh | Mass damper for damping vibrations of a structure, structure with such a mass damper and method for setting the natural frequency of a mass damper |
| CN109667357B (en) * | 2019-02-01 | 2023-11-24 | 青岛理工大学 | Active control device with damping liquid box for moment of inertia |
| CN110206179B (en) * | 2019-05-28 | 2021-08-17 | 广州大学 | Three-dimensional amplification type viscous damper |
| CN112576678B (en) * | 2019-09-27 | 2023-12-08 | 中国电力科学研究院有限公司 | Vertical vibration absorber and method for determining mass of damping fluid medium in vertical vibration absorber |
| CN110701231B (en) * | 2019-10-11 | 2023-12-05 | 浙江工业大学 | TLD vibration damper of half U type water tank structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57137738A (en) * | 1981-02-18 | 1982-08-25 | Toshiba Corp | Vibration-damping device for column |
| JPH01131768A (en) * | 1987-11-17 | 1989-05-24 | Shimizu Corp | Vibration damper for structure |
| CN103132628B (en) * | 2013-03-13 | 2015-04-08 | 上海材料研究所 | Pendulum eddy current tuning mass damper device |
| CN104372870B (en) * | 2014-11-13 | 2016-09-28 | 柳州东方工程橡胶制品有限公司 | A kind of pendulum-type eddy current tuned mass damper damping control device |
| CN106337591B (en) * | 2016-09-30 | 2019-01-11 | 陈政清 | A kind of novel pendulum-type eddy-current damping tuning mass bumper |
| CN106948640B (en) * | 2017-05-08 | 2023-06-23 | 山东大学 | Suspension type multidimensional multistage collision energy dissipation damper |
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