CN205530762U - Intelligent bypass formula viscous damper that stromatolite piezo -actuator adjusted - Google Patents
Intelligent bypass formula viscous damper that stromatolite piezo -actuator adjusted Download PDFInfo
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- CN205530762U CN205530762U CN201620082964.XU CN201620082964U CN205530762U CN 205530762 U CN205530762 U CN 205530762U CN 201620082964 U CN201620082964 U CN 201620082964U CN 205530762 U CN205530762 U CN 205530762U
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- regulation
- cylinder
- stacked piezoelectric
- piston
- piezoelectric driver
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Abstract
The utility model relates to an intelligent bypass formula viscous damper that stromatolite piezo -actuator adjusted, include the cylinder and be located the piston of cylinder, promotion piston motion's guide arm, the guide arm with piston fixed connection, master cylinder and vice jar, the inside viscous liquid damping material that is equipped with of cylinder are separated into to the cylinder, by -pass line has on the cylinder, by -pass line's both ends mouth all with the master cylinder intercommunication just communicates the position and is located respectively the piston both sides, by -pass line has regulation portion, installs stromatolite piezo -actuator in the regulation portion, regulation portion is in the drive of stromatolite piezo -actuator is adjusted down by -pass line's circulation pipe diameter. The utility model discloses the skewing influence can be reduced and the power output is improved to satisfy the demand of civil engineering shock attenuation control under seismic action.
Description
Technical field
The utility model relates to civil engineering structure energy-dissipating and shock-absorbing semi-active control technical field, is specifically related to one and has to go out greatly
Power, adjustable multiple height and the intelligent bypass type fluid linking damper of fast response time, it uses based on the piezoelectricity building up piezoelectric actuator
Valve regulation viscous damping power.
Background technology
Viscid fluid energy dissipation damper (Viscous Fluid Damper, i.e. VFD are called for short fluid linking damper), refers to by viscid
Liquid flows in piston hole and/or gap and produces damping, dissipation vibrational energy, and viscid hydromechanical correlative study shows, this
Plant damping force the most relevant to the movement velocity of piston, so being a kind of velocity correlation type energy dissipation damper.The type damper one
As it is shown in figure 1, by cylinder barrel (including master cylinder 1 and secondary cylinder 2), piston 3, damping hole 4, leading rod 5 and secondary guide rod 6 etc.
Part composition, fills viscous flow body in cylinder barrel, for producing bigger damping force, also utilize the sealing of cylinder barrel to be formed maximum up to 200MPa
The oil pressure (occurrence of this oil pressure is determined by the size of damping force needed for damping) of left and right, now piston longitudinally does reciprocal along cylinder barrel
Motion, and on piston, have appropriate aperture to become damping hole (and/or the mechanical engagement gap between piston and cylinder barrel), viscid fluid hinders
Damping material passes through from piston damping hole high speed, it is possible to produce bigger viscous damping power.Civil engineering structure fluid linking damper
Cylinder barrel typically manufacture and design by large-scale brand machinery plant that (this is designed and in-site installation by enterprise in charge of construction with frcition damper
Significantly different), cylinder barrel material often can use high strength alloy steel, has good sealing and voltage endurance capability, so cylinder
Cylinder can bear the biggest oil pressure, is provided that the biggest damping (damping force is more order of magnitude greater than frcition damper), thus can have
Effect ground reduces the vibration of civil engineering structure, because relative to the damper of mechanical engineering field, the feature of civil engineering is structure
The quality of thing is the hugest, and the damping of needs also tends to big several orders of magnitude than mechanical field.It is owing to machining factory is high equally
The reason that precision produces, precision that it also has, and properties of product are stable, damping force is exerted oneself is high, and (substantially increase seismic structural response can
Control property, and be easy to the calculating of seismic structural response), durability and the advantage such as temperature stabilization is the most especially good.
Above-mentioned advantage shows, in civil engineering structure antidetonation and anti-wind control, fluid linking damper has broad application prospects；From 20
Since century 70, the energy-dissipating and shock-absorbing being the most progressively widely used in civil engineering structure controls.In this process, the U.S.,
The developed economies countries such as the Italy in Japan and Europe take the lead in being applied to Practical Project, the then central city of countries in the world
The city in city, particularly Areas of High Earthquake Intensity, also successively puts into practical engineering application in the shockproof control of its landmark building.Closely
Nian Lai, it is real that the key city (the particularly megapolis such as Beijing and Tianjin) in the highlight lines area of China the most gradually starts engineering
Border is applied, wherein Tyler Corporations of the U.S. (Taylor Devices Inc.), Shanghai Inst. of Materials and Liuzhou Ou Wei nurse company etc.
Product apply quite extensive at home, the particularly vibration control at large bridge compare universal, such as in applying: northern
Capital Olympic Games Pan Gu's grand sight skyscraper, the seismic hardening of Beijing train Beijing West Railway Station, Construction of Hangzhou Bay Cross-sea Bridge and the port built
Zhuhai and Macao bridge etc..
The viscous damping power of current fluid linking damper design is unadjustable, causes the damping effect of its civil engineering structure to have very much
Limit, greatly limit the range of application of fluid linking damper.The top scholar Kelly in such as U.S.'s shock insulation field already point out every
Shake layer installs fluid linking damper, will cause acceleration and the relative storey displacement of amplifying Seismic Isolation of Isolation Layer superstructure when little shake and middle shake, also
That is reduce isolating affection even isolating affection is reduced to zero, add the feature installing fluid linking damper somewhat expensive, cause
Its engineer applied scope is greatly affected.
Patten W. of the U.S. in 1998 et al. is mounted with to utilize conventional solenoid valve to control on the highway bridge of U.S. Okahoma
Variable orifices fluid linking damper, and carried out field measurement, measured result shows, this semi-active control can be greatly reduced car
The vibration of the bridge structure caused, thus reach 40 years the service life extending highway bridge on the original basis.2000, generation
Upper first the Intelligent Hybrid shock-insulation building in boundary builds up in Keio university of Japan, is this University Engineering Department institute building, this office and examination
Test building to have employed variable orifices fluid linking damper exactly and build up rubber earthquake isolation support as earthquake protection system.
But traditional magnetic valve is affected by magnetic hysteresis and machinery inertial, response speed is difficult to meet civil engineering and makees in earthquake
Demand with lower shockproof control.Furthermore, the power output of electromagnetic motor is the biggest, causes direct drive valve core difficulty, and must not
Not using grade B servo valve, amplified by the low power signal of telecommunication by hydraulic control mode, its response time is entered one by hydraulic system
Step is elongated, therefore the shockproof control design and analysis of former variable orifice fluid linking damper is required to consider time lag.Harbin Institute of Technology Li Hui etc.
The test of people proves, the applying frequency of magnetic valve variable orifice damper is at below 2Hz, and time-delay is obvious.
Utility model content
Theoretical according to Modern piezoelectric, the electrostrictive amount of piezoceramic material is directly proportional to being applied to electric-field intensity thereon, utilizes
This is referred to as the principle of inverse piezoelectric effect, and the purpose of this utility model is that designing one includes bypass line and stacked piezoelectric
The intelligent fluid linking damper of driver, utilize stacked piezoelectric driver to regulate the circulation caliber of bypass line, to regulate viscid resistance
Buddhist nun's power, this intelligence fluid linking damper can reduce time-delay and improve power output, thus meets civil engineering under geological process
The demand of shockproof control.
Specifically, the intelligent bypass type fluid linking damper of a kind of stacked piezoelectric driver regulation that the utility model proposes, including cylinder
Cylinder and be positioned at the piston of cylinder barrel, promote the guide rod of piston movement, described guide rod and described piston to fix to be connected；Described cylinder barrel
It is separated into master cylinder and secondary cylinder, equipped with viscose liquids damping material inside cylinder barrel；There is on described cylinder barrel bypass line, described bypass
The two-port of pipeline all connects with described master cylinder, and communicating position lays respectively at described piston both sides；Described bypass line has tune
Joint portion, regulation portion is provided with stacked piezoelectric driver, and described regulation portion regulates described under described stacked piezoelectric driver drives
The circulation caliber of bypass line.
In further preferred scheme of the present utility model, described regulation portion is one section of flexible pipe in described bypass line, and its caliber exists
Change accordingly under described stacked piezoelectric driver drives, the regulation of the caliber that described bypass line circulated with realization.
In further preferred scheme of the present utility model, described cylinder barrel, piston and guide rod are high-strength stainless steel.
In further preferred scheme of the present utility model, described regulation portion is specially stainless steel flexible hose；Described bypass line includes
Described stainless steel flexible hose, and it is connected to two sections of high strength stainless steel pipes at described stainless steel flexible hose two ends.
In further preferred scheme of the present utility model, also include that control system, described control system are driven with described stacked piezoelectric
Dynamic device electrical connection.
Beneficial effect: the intelligent bypass type fluid linking damper of the stacked piezoelectric driver regulation that the utility model proposes, it includes
Bypass line and stacked piezoelectric driver, can by the regulation portion of stacked piezoelectric driver drives bypass line with regulation circulation caliber from
And realizing the regulation to viscous damping power, it is high (up to nanometer that this valve by stacked piezoelectric driver drives has positioning precision
Level) and the feature of fast response time (up to the microsecond order of magnitude), it is possible to reduce time-delay and improve power output, thus meeting
Civil engineering is the demand of shockproof control under geological process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fluid linking damper of prior art.
Fig. 2 is the structural representation of the intelligent bypass type fluid linking damper of the stacked piezoelectric driver regulation that embodiment proposes.
In Fig. 2,10-master cylinder, 20-pair cylinder, 30-piston, 40-guide rod, 50-bypass line, 51-regulation portion, 60-lamination pressure
Electric drive.
Detailed description of the invention
The utility model is retouched further below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that
State.
Refer to Fig. 2, the intelligent bypass type fluid linking damper of a kind of stacked piezoelectric driver regulation that the present embodiment proposes, including
Cylinder barrel and be positioned at cylinder barrel piston 30, promote piston 30 motion guide rod 40；Described guide rod 40 is solid with described piston 30
Fixed connection；Described cylinder barrel is separated into master cylinder 10 and secondary cylinder 20；Equipped with viscose liquids damping material inside cylinder barrel；On described cylinder barrel
Having bypass line 50, the two-port of described bypass line 50 all connects with described master cylinder 10, and communicating position lays respectively at institute
State piston 30 both sides；Described bypass line 50 has regulation portion 51, and regulation portion 51 is provided with stacked piezoelectric driver 60,
Described regulation portion 51 regulates the circulation caliber of described bypass line 50 under described stacked piezoelectric driver 60 drives.
Regulation portion described in the present embodiment 51 can be specifically one section of flexible pipe in described bypass line 50, and its caliber is at described lamination
Piezoelectric actuator 60 drives lower corresponding change, to realize the regulation of the circulation caliber to described bypass line 50.In order to ensure by force
Degree, cylinder barrel described in the present embodiment, piston 30 and guide rod 4 are high-strength stainless steel.Meanwhile, described regulation portion 51 has
Body can be stainless steel flexible hose；Described bypass line 50 includes described stainless steel flexible hose, and is connected to described stainless steel soft
Two sections of high strength stainless steel pipes at pipe two ends.
Additionally, the present embodiment also can farther include control system (not shown), described control system and described stacked piezoelectric
Driver 60 is connected by electric wire, and connects stacked piezoelectric driver special DC power supply.By arranging voltage in the controls,
Including arranging the size of voltage or the positive and negative of voltage, stacked piezoelectric driver 60 is made to drive regulation portion 51 expand accordingly or reduce it
Caliber, namely regulate the circulation caliber of described bypass line 50, thus realize the regulation to viscous damping power.In the present embodiment,
When stacked piezoelectric driver 60 displacement is 1, the telescoping-radius in regulation portion 51 is scalable to 3-4 times.
The intelligent bypass type fluid linking damper of the stacked piezoelectric driver regulation that the present embodiment proposes is half master that a kind of adjustable multiple is big
Dynamic control device, it is adaptable to the strong randomness of earthquake motion, such as, be arranged on Seismic Isolation of Isolation Layer, and the least shake, middle shake and big shake can be protected
Card isolating affection, and response speed is the fastest, it is possible to reduce and time-delay, response speed is entirely capable of catching up with earthquake motion, simultaneously
Improve power output.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed, but not
Therefore the restriction to the utility model the scope of the claims can be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into this practicality
Novel protection domain.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (5)
1. an intelligent bypass type fluid linking damper for stacked piezoelectric driver regulation, the piston including cylinder barrel and being positioned at cylinder barrel, the guide rod of promotion piston movement, described guide rod is fixing with described piston to be connected；Described cylinder barrel is separated into master cylinder and secondary cylinder, equipped with viscose liquids damping material inside cylinder barrel；It is characterized in that having bypass line on described cylinder barrel, the two-port of described bypass line all connects with described master cylinder, and communicating position lays respectively at described piston both sides；Described bypass line has regulation portion, and regulation portion is provided with stacked piezoelectric driver, and described regulation portion regulates the circulation caliber of described bypass line under described stacked piezoelectric driver drives.
The intelligent bypass type fluid linking damper of stacked piezoelectric driver the most according to claim 1 regulation, it is characterized in that, described regulation portion is one section of flexible pipe in described bypass line, its caliber changes under described stacked piezoelectric driver drives accordingly, the regulation of the caliber that circulates described bypass line with realization.
The intelligent bypass type fluid linking damper of stacked piezoelectric driver the most according to claim 2 regulation, it is characterised in that described cylinder barrel, piston and guide rod are high-strength stainless steel.
The intelligent bypass type fluid linking damper of stacked piezoelectric driver the most according to claim 3 regulation, it is characterised in that described regulation portion is specially stainless steel flexible hose；Described bypass line includes described stainless steel flexible hose, and is connected to two sections of high strength stainless steel pipes at described stainless steel flexible hose two ends.
The intelligent bypass type fluid linking damper of stacked piezoelectric driver the most according to claim 4 regulation, it is characterised in that also include that control system, described control system electrically connect with described stacked piezoelectric driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082964.XU CN205530762U (en) | 2016-01-26 | 2016-01-26 | Intelligent bypass formula viscous damper that stromatolite piezo -actuator adjusted |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620082964.XU CN205530762U (en) | 2016-01-26 | 2016-01-26 | Intelligent bypass formula viscous damper that stromatolite piezo -actuator adjusted |
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| CN205530762U true CN205530762U (en) | 2016-08-31 |
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| CN201620082964.XU Withdrawn - After Issue CN205530762U (en) | 2016-01-26 | 2016-01-26 | Intelligent bypass formula viscous damper that stromatolite piezo -actuator adjusted |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525697A (en) * | 2016-01-26 | 2016-04-27 | 广州大学 | Smart bypass type viscous damper adopting laminated piezoelectric actuator for adjustment |
| CN110374220A (en) * | 2019-07-03 | 2019-10-25 | 株洲时代新材料科技股份有限公司 | A kind of fluid linking damper |
-
2016
- 2016-01-26 CN CN201620082964.XU patent/CN205530762U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525697A (en) * | 2016-01-26 | 2016-04-27 | 广州大学 | Smart bypass type viscous damper adopting laminated piezoelectric actuator for adjustment |
| CN105525697B (en) * | 2016-01-26 | 2018-12-07 | 广州大学 | The intelligent bypass type fluid linking damper that stacked piezoelectric driver is adjusted |
| CN110374220A (en) * | 2019-07-03 | 2019-10-25 | 株洲时代新材料科技股份有限公司 | A kind of fluid linking damper |
| CN110374220B (en) * | 2019-07-03 | 2021-07-16 | 株洲时代新材料科技股份有限公司 | Viscous damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20181207 |
|
| AV01 | Patent right actively abandoned |