CN103669631B - Tuning gas-liquid column damper with damping and frequency dual regulation function and structural vibration control system - Google Patents
Tuning gas-liquid column damper with damping and frequency dual regulation function and structural vibration control system Download PDFInfo
- Publication number
- CN103669631B CN103669631B CN201310408983.8A CN201310408983A CN103669631B CN 103669631 B CN103669631 B CN 103669631B CN 201310408983 A CN201310408983 A CN 201310408983A CN 103669631 B CN103669631 B CN 103669631B
- Authority
- CN
- China
- Prior art keywords
- valve
- damper
- conduit
- damping
- gas column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a novel tuning gas-liquid column damper with a damping and frequency dual regulation function and a structural vibration control system. The damper can be used for regulating damping and frequency conveniently, thereby achieving the optimal vibration / shock reduction effect on a controlled structural object in different construction phases under different intensities of loads. The novel damper has two characteristics, wherein one characteristic is that a damper valve which can regulate damping force is arranged on a horizontal section of a U-shaped pipe, and the damper valve is a magneto-rheological friction-type damper valve or an electromagnet friction-type damper valve; the other characteristic is that a gas column is further closed at vertical sections on the two sides of the U-shaped pipe, an air pressure regulation device is also installed, and the frequency of the damper is changed by means of regulating air pressure. The structural vibration control system is composed of at least one damper, at least one sensor used for measuring a structural vibration state and at least one controller, and can achieve the optimal vibration control effect on a structure in different construction phases under different use conditions and different intensities of imposed loads.
Description
Technical field
The present invention relates to be used to building, the field of vibration control such as bridge, ocean platform, power transmission tower with damping and
The tuning gas column damper of frequency dual regulating functions and Structural Vibration Control Systems, by the real-time tune to damping and frequency
Section, realizes the optimal effectiveness to structural vibration control.
Background technology
Skyscraper, large-span structure are because the flexibility of itself is big, low feature is damped, easily in wind, earthquake, working load
Lower etc. external force effect occur significantly to vibrate, and the vibration damping/shake for carrying out structure using damper is effective method.
Tuning column damper（Tuned Liquid Column Damper,TLCD）It is on Tuned Liquid basis
It is upper development and formed effective vibration absorber, TLCD devices be commonly made to it is U-shaped, by two vertical sections and a horizontal segment group
Into when structure is acted on by external force, the liquid in U-tube occurs flowing or vibrates, and produces in opposite direction with structural vibration
Active force, so as to reach the purpose of vibration damping/shake.By designing and adjusting the inherent characteristics such as U-shaped liquid in pipe length, Ke Yishi
The existing best vibration damping effect to ad hoc structure under certain vibration mode.But the systematic parameter of this traditional TLCD is relatively solid
It is fixed, it is impossible to make and adjusting easily and fast for structure difference construction stage and varying strength load action, so as to realize
Best vibration damping/shake effect.
Traditional TLCD is improved, or in combination with other novel energy-consumption components, with engineering significance.These
Improved TLCD is well known in the art.Such as：Chen Yongxiang on April 7th, 2004 submit to it is entitled " propeller control it is active
The Chinese patent CN2610162Y and its Yung-Hsiang Chen of harmony column damper " was submitted on April 9th, 2004
“Propeller-controlled active tuned-liquid-column damper（What propeller was controlled actively tunes liquid
Post damper）" United States Patent (USP) US2004/0201153A1；Repaiied by king and dare to the entitled " magnetorheological of the submission of on June 4th, 2007
The Chinese patent CN101070893A of formula tuning column damper "；Wang etc. is with magnetorheological（MR）Liquid replaces in tradition TLCD
Water make MR-TLCD improve the performance of damper, Shum etc. [2] using supercharging TLCD devices to long-span cablestayed bridges in wind lotus
Vibration under load effect is controlled.
TLCD has close relationship to the vibration damping/shock stability of controlled structure with its intrinsic frequency and damping.It is often necessary to
The intrinsic frequency of design TLCD is close to certain fundamental frequency of structure, meanwhile, the damping of TLCD is also required to according to different frequencies
Carry out optimal design.The two complements each other, and to vibration control effect conclusive effect is played.It is existing to enter for traditional TLCD
Capable improvement and research, all just for the single factors in frequency or damping, fail the function with dual regulation, right
The range of application of TLCD and application effect improve limited, it is impossible to realize subtracting the optimum under structure difference operating mode and different loads
Shake/shake effect.Meanwhile, such as the MR-TLCD of Wang propositions has good performance to damping adjusting, but it involves great expense, and
And do not possess the function of regulating frequency, when structural vibration frequency is away from natural frequency of damper, under vibration damping/shake effect is obvious
Drop；King repaiies the patent of brave submission（CN101070893A）, simply magnetic flow liquid is adopted in U-tube horizontal segment, reduce magnetorheological
The consumption of liquid, but due to the strong nonlinearity characteristic of MR damper, have in actually modeling and in applying and limit, nor
Possesses the function of regulating frequency.Thus, in the urgent need to a kind of TLCD with damping and frequency dual regulating functions in engineering.
The content of the invention
Present invention technical problem to be solved first is to provide a kind of tune with frequency and damping dual adjustable function
Humorous gas column damper, and with consume energy little, low cost, simple, easily controllable model and the characteristics of efficiency high.For this purpose, this
Invention is employed the following technical solutions：
A kind of tuning gas column damper with damping and frequency dual regulating functions, including with bottom level pipeline section
U-tube, it is characterised in that the damper is additionally provided with damping apparatus for adjusting force, the position for being placed in U-tube bottom level pipeline section
In U-tube damping apparatus for adjusting force both sides motion fluid column and be respectively acting on being used for for two lateral movement fluid column outer ends
Change the closed at both ends gas column of damper frequency；Closed at both ends gas column connects their barometric control unit.
On the basis of using above-mentioned technical proposal, the present invention can also be using technical scheme further below：
The damping apparatus for adjusting force of U-tube bottom level pipeline section adopts friction-type orifice valve.
The damping apparatus for adjusting force of U-tube bottom level pipeline section is using magneto-rheological friction type orifice valve or electromagnet friction-type
Orifice valve, by adjusting the input voltage or electric current of magneto-rheological friction type orifice valve and electromagnet friction-type orifice valve damping is changed
The size of the damping force of valve.
Closed at both ends gas column is in respectively the both sides vertical section of U-tube.
Closed air column is also connected with measuring the device of pressure or pressure.
Closed at both ends gas column connects respectively barometric control unit by the first conduit and the second conduit, between closed at both ends gas column
Also connected by connecting conduit；Arrange the 5th valve in connecting conduit to control conducting and isolation between closed at both ends gas column；The
It is respectively provided with the 1st valve and the 2nd valve on one conduit and the second conduit to control leading for closed at both ends gas column and its barometric control unit
Logical and isolation.
The connecting conduit is connected between the first conduit and the second conduit, and the first conduit and the second conduit are being led with being connected
The 3rd valve and the 4th valve are respectively provided with before pipe junction, the 1st valve and the 2nd valve are separately positioned on the first conduit and the second conduit and are connected
After conduit connection.
Another technical problem to be solved of the invention is to provide a kind of knot with above-mentioned tuning gas column damper
Structure vibration control system.For this purpose, the present invention is employed the following technical solutions：
A kind of Structural Vibration Control Systems, it is characterised in that it includes：
Tuning gas column damper described at least one claim 1；With
At least one sensor, for the vibrational state of measurement structure；With
At least one controller, for receiving signal from sensor and changing the electricity of damping apparatus for adjusting force according to signal
Stream or voltage with damping adjusting power, control closed air column extraction gas to change closed air column in air pressure.
Due to adopting technical scheme, the present invention is a kind of tuning gas column damper, with traditional TLCD phases
Than, friction damper is added on original device, and in closed at both ends gas column, the air pump device for adjusting air pressure has been disposed,
Realize the dual regulating functions of the frequency of TLCD and damping, can realize structure the different construction stages in different operating modes and
Best vibration damping under different loads/shake effect；Meanwhile, using magneto-rheological friction type or electromagnet friction-type orifice valve changing resistance
Buddhist nun, using the closed air column of adjustable pressure frequency is changed, and realizes simple accurate, the easy to operate accurate, vibration damping of model（Shake）Section
Can the efficient, advantage that replacing is simple and feasible.
To sum up, the present invention has many advantages, such as following：
（1）Simple structure, takes up space little, and low cost is easy for installation；
（2）Using the adjustable property of magnetic flow liquid, by changing magnetic of the voltage/current adjustment effect on magnetic flow liquid
, it is quick to change magnetic flow liquid condition, using the simple friction damper of model, realize easily and accurately adjusting damper
Damping；
（3）According to the property of electromagnet, the voltage on regulating magnet, change magnetic force size, adjustment electromagnet and piston
Frictional force between connecting rod, realizes that facilitating for damping force is adjustable；
（4）With closed air column and barometric control unit, the frequency of damper can be adjusted according to architectural characteristic.
（5）Coordinate with sensor, controller, it is easy to accomplish economic, efficient, safe, the durable closed loop to structural vibration
Control.
Description of the drawings
Fig. 1 is the schematic diagram that the dual regulation and control of damped frequency provided by the present invention tune gas column damper embodiment.
Fig. 2 a are magneto-rheological friction type orifice valve using schematic diagram when circular slide bar, single valve dual Piston.
Fig. 2 b are magneto-rheological friction type orifice valve using schematic diagram when circular slide bar, bivalve single-piston formula.
Fig. 2 c are magneto-rheological friction type orifice valve using section B-B sectional view during circular slide bar.
Fig. 3 a are magneto-rheological friction type orifice valve using schematic diagram when rectangle slide bar, single valve dual Piston.
Fig. 3 b are magneto-rheological friction type orifice valve using schematic diagram when rectangle slide bar, bivalve single-piston formula.
Fig. 3 c are magneto-rheological friction type orifice valve using C-C cross-sectional views during rectangle slide bar.
Fig. 4 a are electromagnet friction-type orifice valve using schematic diagram during single valve dual Piston.
Fig. 4 b are electromagnetism friction rail resistance type Buddhist nun valve using schematic diagram during bivalve single-piston formula.
Fig. 4 c-1,4c-2 are the D-D cross-sectional views of electromagnetism friction rail resistance type Buddhist nun's valve, respectively illustrate slide bar 8 in circle
Situation when shape and rectangle.
Fig. 5 a, 5b, 5c are the Section A-A sectional view of piston.
Fig. 6 is that the dual regulation and control of damped frequency tune gas-liquid post damper control system schematic diagram.
1 --- horizontal pipeline section, 2 --- adjustable resistance damper,
3,3 ' --- vertical pipeline section, 31 --- motion fluid column, 4,4 ' --- closed air column,
5,5 ' --- barometric control unit, 51,51 ', 52,52 ', 53 --- valve,
6,6 ' --- connecting tube, 7 --- piston,
8 --- slide bar, 9 --- the cavernous body of dipping magnetic flow liquid,
10 --- magnet exciting coil, 11 --- fixing nut,
12 --- external power supply wire, 13 --- hold-down support,
14 --- electromagnet, 15 --- stopping means,
16 --- piston baffle, 17 --- throttle orifice,
18 --- piston and horizontal pipeline section gap, 19 --- sensor,
20 --- controller
Specific embodiment
Tuning gas column damper in the present invention（As shown in Figure 1）, comprising U-tube 1, it is installed on U-tube horizontal segment
Can with the orifice valve 2 of damping adjusting power, positioned at U-tube vertical section closed air column 4,4 ' and its it is corresponding adjust pressure apparatus 5,
5 ', and motion fluid column 31.
That what is installed at the horizontal pipeline section of the U-tube can adopt friction-type orifice valve, example with the orifice valve 2 of damping adjusting power
Such as using magneto-rheological friction type orifice valve or electromagnet friction-type orifice valve, orifice valve 2 is by external wire 12 and external power source
It is connected, changes the voltage/current of external power source, the damping of damping adjusting device can be played a part of.Vertically pipeline section 3 and 3 ' is sealed above
Hold one's breath post 4 and 4 ', be connected with barometric control unit 5 and 5 ' by valve 52,52 ', 51,51 ' and connecting tube 6,6 ', together
When, two sections of closed air columns are connected by conduit 55, middle setting valve 53.
The frequency regulation function is realized by barometric control unit 5,5 ' and valve 51,51 ', 52,52 ', 53.
Gas in closed air column 4,4 ' can choose air or other gases, barometric control unit with design as requested
The similar devices such as including air pump, closed air column 4,4 ' can also connect pressure tester, and pressure tester includes the instrument such as pressure gage, pressure gauge
Device.
The frequency of damper is determined by the static pressure of closed air column.Thus, when needing to change damper frequency, first will
Valve 52,52 ', 53 is opened so that two ends gas column is turned on, and pressure is equal, and gas column volume does not change with the motion of liquid,
So as to gas column pressure now is equal to static pressure.Afterwards, valve 51,51 ' is turned on, by barometric control unit 5,5 ' by taking out
Gas or inflation, by gas column pressure desired value is adjusted to.Then, valve 51,51 ' is closed.Equilbrium position is moved in fluid column, that is, is erected
When straight length liquid level is equal, valve 53 is closed, turn off valve 52,52 '.This process realizes the regulation of frequency.By air pressure
The pumping or inflation of adjusting means 5,5 ' can adjust gas column air pressure more than or less than ambient pressure, but it is zero to be difficult to air pressure
（Perfect vacuum）.For this purpose, valve 51,51 ' can be closed, valve 52,52 ', 53 is opened, by the conducting of two ends gas column so that
Fluid column top two ends air pressure is equal, the situation when damper frequency realized is zero equivalent to closed air.
As described above, closed at both ends gas column can realize UNICOM or isolation by valve and conduit.Adjusting closed air column
During initial static air pressure, the two connection, so that two ends initial static air pressure is equal, simplifies the initial modeling and operation of damper
Difficulty.After initial static air pressure is adjusted, by closed at both ends gas column by valve isolation close, closed at both ends gas column air pressure with
Fluid column is moved and changed, and plays a part of gas spring, so as to play a part of damping adjusting device frequency.To closed at both ends gas column
Space, by inflating or being evacuated, it is possible to achieve the regulation to gas column initial static pressure.
The implementation that the magnetorheological wiping type orifice valve can be adopted but be not limited to shown in Fig. 2 a-c and Fig. 3 a-c.
Fig. 2 a-c show circular slide bar orifice valve；Can adopt but be not limited to single valve dual Piston and figure shown in Fig. 2 a
Bivalve single-piston formula shown in 2b.Fig. 2 c show the cross-sectional view of circular slide bar damper valves.In dipping magnetic flow liquid
The periphery of cavernous body 9 winding magnet exciting coil 10, by hold-down support 13 horizontal pipeline section is fixed in；Cavernous body 9 occurs with slide bar 8
Frictional Slipping, slide bar 8 is connected with piston 7, so as to play throttling action to motive liquid.Magnet exciting coil 10 is led by external power supply
Line 12 is connected with external power source, and by adjusting outer power voltage/electric current, the condition of cavernous body 9 changes, with slide bar 8 it
Between frictional force also change, so as to realize damper damp regulation.
Fig. 3 a-c show rectangle slide bar damper valves；Can adopt but be not limited to the single valve dual Piston shown in Fig. 3 a and
Bivalve single-piston formula shown in Fig. 3 b.Fig. 3 c show the cross-sectional view of rectangle slide bar damper valves.In dipping magnetic flow liquid
The upper and lower of cavernous body 9 electromagnet is respectively set（Magnet exciting coil）14, horizontal pipeline section is fixed in by hold-down support 13；Sponge
There is Frictional Slipping in body 9, slide bar 8 is connected with piston 7, so as to play throttling action to motive liquid with slide bar 8.Electromagnet 14 leads to
Cross external power supply wire 12 to be connected with external power source, by adjusting outer power voltage/electric current, the condition of cavernous body 9 becomes
Change, also change with the frictional force between slide bar 8, so as to realize the regulation that damper is damped.
The implementation that the electromagnet friction-type orifice valve can be adopted but be not limited to shown in Fig. 4 a, b, c-1, c-2.
Fig. 4 a show single valve dual Piston, and Fig. 4 b show the modes such as bivalve single-piston formula.Fig. 4 c-1, c-2 are respectively
The rounded cross-sectional view with during rectangle of slide bar 8.Electromagnet 14 is fixed with horizontal segment tube wall by hold-down support 13, by
The slide bar 8 that ferromagnetic material makes makes it keep directly contact with electromagnet 14 by stopping means 15；Slide bar 8 is connected with piston 7.
The voltage of the external power supply of regulating magnet 14, changes the magnetic force of electromagnet, so as to change rubbing between electromagnet 14 and slide bar 8
Power is wiped, the damping for realizing damper is adjusted.
For the embodiment of piston 7, can using but in the form of being not limited to shown in Fig. 5 a-c.Piston baffle 16 can be adopted
With totally enclosed type as shown in Figure 5 a；May also be employed as shown in Figure 5 b is semi-enclosed, and baffle plate 16 is set to multi-disc, sets between each
There is space；Mode as shown in Figure 5 c is may also be employed, piston baffle 16 is arranged into gap 18 with horizontal pipeline section inwall, also can be simultaneously
The throttle orifice 17 of different quantity and size is set on piston baffle.Although Fig. 5 illustrates the reality of piston by taking circular slide bar as an example
Existing mode, similarly, when using rectangle slide bar, piston may also be employed totally enclosed type, semi-enclosed and throttling cellular type.
When actually used, according to specific needs, selecting tuning liquid, confining gas and U-tube material, cross sectional shape；Choosing
Suitable orifice valve is selected, according to structure difference operating mode, regulating power source voltage and gas column air pressure, changes damping and the frequency of damper
Rate.
Fig. 6 is that system of the present invention when closed loop vibration control is applied to is illustrated.The present invention is commonly positioned at structure and can send out
The position of raw large magnitude, first according to characteristics such as the intrinsic frequency of structure and dampings, chooses appropriate frequency and damping.Pass through
Voltage/current and envelope needed for disposing the vibrational state of the acquisition structure of sensor 19 in structure, application controller 20 to calculate
Hold one's breath post pressure, and the regulation to damper frequency and damping is realized by regulator and valve and external power supply, to obtain
Obtain optimum vibration damping/shake effect.
Claims (6)
1. a kind of with the tuning gas column damper damped with frequency dual regulating functions, including with bottom level pipeline section
U-tube, it is characterised in that the damper is additionally provided with and is placed in the damping apparatus for adjusting force of U-tube bottom level pipeline section, positioned at U
In type pipe damping apparatus for adjusting force both sides motion fluid column and be respectively acting on two lateral movement fluid column outer ends for changing
The closed at both ends gas column of mutative damp device frequency；Closed at both ends gas column connects their barometric control unit；
Closed at both ends gas column connects respectively barometric control unit by the first conduit and the second conduit, also leads between closed at both ends gas column
Cross connecting conduit connection；Arrange the 5th valve in connecting conduit to control conducting and isolation between closed at both ends gas column；First leads
Be respectively provided with the 1st valve and the 2nd valve on pipe and the second conduit control closed at both ends gas column and its barometric control unit conducting and
Isolation；
Closed at both ends gas column is in respectively the both sides vertical section of U-tube.
2. according to claim 1 a kind of with the tuning gas column damper damped with frequency dual regulating functions, its
It is characterised by, the damping apparatus for adjusting force of U-tube bottom level pipeline section adopts friction-type orifice valve.
3. according to claim 1 a kind of with the tuning gas column damper damped with frequency dual regulating functions, its
It is characterised by, the damping apparatus for adjusting force of U-tube bottom level pipeline section is using magneto-rheological friction type orifice valve or electromagnetism friction rail
Type orifice valve, by adjusting the input voltage or electric current of magneto-rheological friction type orifice valve and electromagnet friction-type orifice valve resistance is changed
The size of the damping force of Buddhist nun's valve.
4. according to claim 1 a kind of with the tuning gas column damper damped with frequency dual regulating functions, its
It is characterised by, closed air column is also connected with measuring the device of pressure or pressure.
5. according to claim 1 a kind of with the tuning gas column damper damped with frequency dual regulating functions, its
Be characterised by, the connecting conduit is connected between the first conduit and the second conduit, the first conduit and the second conduit be connected
The 3rd valve and the 4th valve are respectively provided with before conduit connection, the 1st valve and the 2nd valve are separately positioned on the first conduit and the second conduit and company
After connecing conduit connection.
6. a kind of Structural Vibration Control Systems, it is characterised in that it includes：
Tuning gas column damper described at least one claim 1；With
At least one sensor, for the vibrational state of measurement structure；With
At least one controller, for from sensor receive signal and according to signal change damping apparatus for adjusting force electric current or
Voltage with damping adjusting power, control closed air column extraction gas to change closed air column in air pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310408983.8A CN103669631B (en) | 2013-09-10 | 2013-09-10 | Tuning gas-liquid column damper with damping and frequency dual regulation function and structural vibration control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310408983.8A CN103669631B (en) | 2013-09-10 | 2013-09-10 | Tuning gas-liquid column damper with damping and frequency dual regulation function and structural vibration control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103669631A CN103669631A (en) | 2014-03-26 |
| CN103669631B true CN103669631B (en) | 2017-04-12 |
Family
ID=50308341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310408983.8A Active CN103669631B (en) | 2013-09-10 | 2013-09-10 | Tuning gas-liquid column damper with damping and frequency dual regulation function and structural vibration control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103669631B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806455B (en) * | 2015-02-26 | 2016-01-13 | 上海交通大学 | The deepwater semisubmersible platform type floating wind energy turbine set of frequency-adjustable |
| CN105064526B (en) * | 2015-08-07 | 2018-01-12 | 安徽农业大学 | A kind of tuned liquid damper, TLD, tuned sloshing damper with earthquake alarm and earthquake intensity measurement function |
| FR3048408B1 (en) * | 2016-03-02 | 2019-04-05 | IFP Energies Nouvelles | STABILIZATION SYSTEM, IN PARTICULAR FOR A FLOATING SUPPORT, WITH MULTIPLE DAMPING DEVICES HAVING A U-SHAPE |
| FR3048409B1 (en) * | 2016-03-02 | 2018-03-23 | IFP Energies Nouvelles | STABILIZATION SYSTEM, ESPECIALLY FOR A FLOATING SUPPORT, WITH AT LEAST THREE LIQUID RESERVES CONNECTED THERETO |
| US11629518B2 (en) * | 2017-02-28 | 2023-04-18 | Hummingbird Kinetics LLC | Tuned liquid damper with a membrane liquid-gas interface |
| CN108035599B (en) * | 2017-12-22 | 2019-12-13 | 青岛土木建工集团有限公司 | A earthquake-resistant structure and shear force roof beam for shear force roof beam |
| CN108468459B (en) * | 2018-04-23 | 2023-12-19 | 天津大学 | Tuning liquid column type damping device with power generation function |
| CN112554359B (en) * | 2020-11-17 | 2021-11-16 | 同济大学 | Offshore wind power generation high tower controlled and protected by semi-active frequency modulation PTLCD |
| CN114909010B (en) * | 2022-04-18 | 2023-06-02 | 中国长江三峡集团有限公司 | Tuned air pressure liquid column damper and tower |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3482025B2 (en) * | 1995-01-27 | 2003-12-22 | 三菱重工業株式会社 | Fluid vibration and vibration control device |
| CN1971080A (en) * | 2005-11-25 | 2007-05-30 | 吕崇耀 | Electromagnetic-rheological fluid hydro-pneumatic hanging system |
| CN101086288A (en) * | 2006-06-06 | 2007-12-12 | 杜彦亭 | Controllable gas-liquid vibration damper |
| WO2007149393A2 (en) * | 2006-06-16 | 2007-12-27 | University Of Maryland | System and method for magnetorheological-fluid damping utilizing porous media |
| CN100455843C (en) * | 2007-06-04 | 2009-01-28 | 湖南大学 | Magnetic-fluid change type regulation-liquid column damper |
| CN103216565B (en) * | 2013-03-27 | 2015-11-25 | 杨炯华 | The hydraulic damper that gas is auxiliary |
| CN203716322U (en) * | 2013-09-10 | 2014-07-16 | 杭州健而控科技有限公司 | Novel turning gas and liquid column damper with double regulating functions of damping and frequency and structural vibration control system |
-
2013
- 2013-09-10 CN CN201310408983.8A patent/CN103669631B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103669631A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103669631B (en) | Tuning gas-liquid column damper with damping and frequency dual regulation function and structural vibration control system | |
| CN203716322U (en) | Novel turning gas and liquid column damper with double regulating functions of damping and frequency and structural vibration control system | |
| CN109235688B (en) | A kind of magnetorheological half active stiffness adjustable shock absorber | |
| CN108644298B (en) | Tuned liquid column damper with damping multiple real-time adjustment | |
| CN108894347B (en) | A kind of magnetorheological intelligent tuning vibration absorber of half active | |
| CN101761146B (en) | Permanent-magnet type eddy current tuned mass damper | |
| CN101806104B (en) | Suspended frequency modulation mass damper | |
| CN105782333B (en) | A kind of active superlow frequency vibration isolating device of combined type half | |
| CN109025450B (en) | A kind of used matter vibration absorber of temperature control intelligent tuning | |
| CN100455843C (en) | Magnetic-fluid change type regulation-liquid column damper | |
| CN108708928B (en) | A kind of magnetorheological tuned mass damper of half active | |
| CN202611007U (en) | Vibration attenuation control device of suspension type tuned mass damper | |
| CN107905605B (en) | Frequency-modulated liquid column damper capable of adjusting damping in real time | |
| CN108412947A (en) | A kind of low frequency wide area structure vibration-repressing device that control frequency domain is tunable | |
| CN109854434A (en) | Self-adaptation type bistable state float type wave energy power generation and electricity-generating method | |
| CN2731175Y (en) | Self-reset magnetic current change damper | |
| CN108425986B (en) | Cylindrical eddy current damping device, damping adjustment method and bridge vibration reduction structure | |
| CN102409604A (en) | Device for damping and protecting bridge structural suspender | |
| WO2021012578A1 (en) | Self-adaption variable damping vortex-induced vibration energy conversion device | |
| CN206376390U (en) | A kind of three-dimensional multiple tuned mass dampers damping control device | |
| CN102912881A (en) | Adjustable fluid viscous damper | |
| CN201027893Y (en) | Pressure limiting valve hydraulic damper | |
| CN101915282B (en) | Passive magnetorheological tensile damping adaptive control method and device | |
| CN103410092A (en) | Semi-active control method for vibration of inclined stay cable | |
| CN204098268U (en) | Permanent magnetism type magnetic suspension horizontal tuned mass damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |