CN105650194B - Vane type power consumption tuning vibration absorber - Google Patents
Vane type power consumption tuning vibration absorber Download PDFInfo
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- CN105650194B CN105650194B CN201610128271.4A CN201610128271A CN105650194B CN 105650194 B CN105650194 B CN 105650194B CN 201610128271 A CN201610128271 A CN 201610128271A CN 105650194 B CN105650194 B CN 105650194B
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- damping box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
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- Vibration Prevention Devices (AREA)
Abstract
Consumed energy the invention discloses a kind of vane type and tune vibration absorber, including a vibration damping box being arranged on rotating disk, bottom surface and upper top surface in vibration damping box are separately installed with the mass that can be slidably reciprocated along its surface, described mass is connected by the viscous damper and flexible member of parallel connection with vibration damping box side wall, the liquid damper being connected with vibration damping box inwall is horizontally arranged between upper and lower two masses, horizontally disposed pivoting leaf bobbin is installed in described liquid damper, described pivoting leaf bobbin is extended to outside vibration damping box to be connected with blade.
Description
Technical field
The invention belongs to the control of wind power generation stepped and related High-rise Structures Under Wind, and in particular to a kind of vane type power consumption tuning
Vibration absorber.
Background technology
With the utilization of the wind-powered electricity generation energy, the wind power generation stepped popularization obtained in the last few years energetically.In view of it is to warp
Ji development and the important function of environmental protection, it is ensured that the work of wind-power electricity generation tower structure safety and stability under wind action, tool
There is very important meaning.Wind power generation stepped structure height is higher, and its main by weight concentrates on the blower fan system on pylon top, and
Due to its special job specification, the influence of wind load is highly prone to.Wind power generation stepped structural system is outer by wind load etc.
During boundary's load excitation, system obtains energy input, so as to produce corresponding dynamic response.
Currently used vibration control technology can be divided into passive control, active control, semi- active control, intelligent control and
Mixing control.The method of vibration control at present mainly includes the methods of weakening, vibration isolation, dynamic absorber and damping vibration attenuation.Damping consumption
Can device the damping for functioning as increase structure, be that the energy conversion of structural vibration into heat energy or other can be lost
Energy, so as to reduce the response of structure, mainly including metal energy-dissipation damper, friction energy-dissipating damper, viscoelastic damper and
Viscous damper.Tuned mass damper is a kind of classical damping control device, and it is by spring, damper and mass institute
The vibrational system of composition.When structure produces vibration under outside load action, drive Tuned mass damper system vibrates together,
Inertia force caused by Tuned mass damper system relative motion is reacted in structure, tunes this inertia force, makes it to knot
The vibration control of structure produces control action, so as to reach the purpose for reducing structural vibration response.
Current vibration absorber reduces structural vibration using a kind of mode more, can not be abundant by wind energy under such high wind effect
The energy for being converted into other forms；In addition, existing vibration absorber can only control shaking for some direction or certain several direction
It is dynamic, it is contemplated that the complexity of wind turbine tower structure local environment, traditional vibration absorber can not tackle least favorable well
Wind vibration response caused by direction wind comes.
The content of the invention
Consumed energy it is an object of the present invention to provide a kind of vane type and tune vibration absorber, mainly for wind power generation stepped and related height
Alarm structural vibration control, it is intended to reduce its dynamic respons under wind action, so as to reach the effect of oscillation damping and energy dissipating, this hair
It is bright that the energy that dynamic excitation obtains is converted into by other shapes by wheel hub blade rotation power consumption and tuning quality vibration damping two ways
The energy of formula, develop vane type power consumption tuning vibration absorber.
To achieve the above object, the present invention uses following technical proposals：
Vane type power consumption tuning vibration absorber, including a vibration damping box being arranged on rotating disk, the bottom in vibration damping box
Face and upper top surface are separately installed with the mass that can be slidably reciprocated along its surface, the viscous damping that described mass passes through parallel connection
Device and flexible member are connected with vibration damping box side wall, are horizontally arranged with what is be connected with vibration damping box inwall between upper and lower two masses
Liquid damper, is provided with horizontally disposed pivoting leaf bobbin in described liquid damper, and described pivoting leaf bobbin prolongs
Reach and be connected outside vibration damping box with blade.
Further, the bottom surface in described vibration damping box and upper top surface are separately installed with lower railway and upper rail, on
The bottom of lower two masses is provided with wheel, and wheel moves back and forth respectively along lower railway and on getting on the right track, viscous to reduce
Frictional force between damper and vibration damping box.
Further, described blade is connected with wheel hub, and wheel hub is connected with pivoting leaf bobbin, and blade rotates pivoting leaf bobbin
Motion, the motion of pivoting leaf bobbin and the friction of liquid damper and then power consumption.
Further, described two masses up and down have identical quality, by adjusting the rigidity of spring, make quality
Block has identical frequency with controlled structure, so as to play damping effect.
Further, described rotating disk is installed in a rotating shaft, wind transducer is provided with rotating shaft side, rotating shaft is with turning
Disk is connected, for adjusting the direction of vibration damping box and blade, it is possible to achieve the control in maximum vibration direction.
Further, the rotating speed of the rotating shaft of described wind transducer collection, and the signal of collection is sent to controller,
Described controller and then rotating speed and the steering of rotating shaft are controlled again.
Further, described pivoting leaf bobbin is provided with one with the part that vibration damping box contacts makes pivoting leaf bobbin free
The snap ring that rotates but can not be moved along tank wall normal direction.
Further, the present invention should be fixed on the upper surface of tower top blower fan by bottom rotating disk.
The operation principle of the present invention is as follows：
In use, the present invention should be fixed on the upper surface of tower top blower fan by bottom rotating disk.Obtained by wind transducer
Wind direction is taken, controls axis of rotation so that the direction that the blade face wind of vibration absorber comes, it is possible to achieve maximum vibration direction
Vibration damping.Wind is to the vibration absorber, and a part acts on blade, and blade rotation drives the damper work of rotation liquid, by wind energy
Kinetic energy is converted into, and then is converted into heat energy；Another part acts on pylon structure, and pylon structure produces vibration, causes vibration damping box
Middle mass moves left and right, while spring and damper work, and then the effect of vibration damping.
Beneficial effects of the present invention are as follows：
The direction that the present invention can automatically adjust vibration absorber work reaches the vibration damping mesh controlled in the case of least favorable wind direction
, so as to reduce the response of wind turbine tower structure maximum vibration under wind action.The device by blade rotate into
And drive pivoting leaf bobbin to be consumed energy with liquid damping friction, while by tuning quality damper vibration damping, there is preferable vibration damping
Effect.The device simple structure, flexibility is high, cost-effective, easy to use.、
The present invention can convert wind energy into kinetic energy simultaneously by two kinds of approach, and then be converted into heat energy, can be sufficient
Consumed energy, reach good effectiveness in vibration suppression.And the present invention automatically controls the direction of vibration absorber by wind transducer, from
And realize the wind dynamic control of different directions.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is vane type power consumption tuning vibration absorber schematic diagram；
Fig. 2 is vane type power consumption tuning vibration absorber a-a diagrammatic cross-sections；
Fig. 3 is vane type power consumption tuning vibration absorber schematic side view.
In figure：1 connecting rod, 2 masses, 3 viscous dampers, 4 springs, 5 wheels, 6 lower railway, 7 upper rails, 8 snap rings, 9 wheels
Hub, 10 blades, 11 vibration damping boxes, 12 pivoting leaf bobbins, 13 liquid dampers, 14 rotating disks, 15 wind transducers.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with technical scheme and accompanying drawing.
Vane type power consumption tuning vibration absorber such as Fig. 1, Fig. 2 proposed by the present invention, shown in Fig. 3, the device may be mounted at
The top of pylon structure.Concrete structure is as follows：The dissipative damping device is by wheel hub blade, vibration damping box and rotating disk three parts group
Into.Wherein vibration damping box is by 1, two, connecting rod mass 2, two viscous damper 3, two 4, eight, spring wheel 5, a lower rail
Road 6, upper rail 7, snap ring 8, pivoting leaf bobbin 12, liquid damper 13 and vibration damping box 11 are formed.Rotating disk is by rotating disk 14 and wind direction
Sensor 15 is formed, and concrete structure is as follows：
Bottom surface and upper top surface in vibration damping box 11 are separately installed with can be along the mass 2 that its surface slidably reciprocates, institute
The mass 2 stated by parallel connection viscous damper 3 and spring 4 be connected with the side wall of vibration damping box 11, upper and lower two masses 2 it
Between be horizontally arranged with the liquid damper 13 being connected with the inwall of vibration damping box 11, level is installed in described liquid damper 13
The pivoting leaf bobbin 12 of setting, described pivoting leaf bobbin 12 is extended to outside vibration damping box 11 to be connected with blade 10, and rotating vane
Axle 12 is provided with a snap ring 8 with the part that vibration damping box 11 contacts, and snap ring 8 can be such that rotating shaft freely rotates wherein, but can not
Moved along tank wall normal direction.
Further, 11 bottom surface and upper top surface are separately installed with lower railway 6 and upper rail in described vibration damping box
7, the bottoms of upper and lower two masses 2 is provided with wheel 5, wheel 5 respectively along moving back and forth on lower railway 6 and upper rail 7, with
Reduce the frictional force between viscous damper and vibration damping box 11.
Further, blade 10 is connected with wheel hub 9, and wheel hub 9 is connected with pivoting leaf bobbin 12, and blade 10 rotates rotating vane
Axle moves, the motion of pivoting leaf bobbin 12 and the friction of liquid damper and then power consumption.
Further, upper and lower two masses have identical quality, by adjusting the rigidity of spring, make mass and quilt
Control structure has identical frequency, so as to play damping effect.
Further, rotating disk 14 is installed in a rotating shaft, and wind transducer 15, rotating shaft and rotating disk are provided with rotating shaft side
It is connected, for adjusting the direction of vibration damping box and blade, it is possible to achieve the control in maximum vibration direction.
Further, the rotating speed for the rotating shaft that wind transducer 15 gathers, and the signal of collection is sent to controller, it is described
Controller so that the rotating speed of controlled motor and steering, while motor is connected with rotating shaft again, the rotating shaft rotating speed of motor control and
Turn to, and then the direction of vibration absorber, the direction for making blade face aweather blow are controlled by rotating disk.
Here it is connected between motor and rotating shaft by decelerator.
During work, rotating disk 14 is fixed on the top of pylon blower fan, and wind transducer 15 obtains wind direction, is subtracted by rotating disk control
The direction of vibrating device, the direction for making blade face aweather blow.A wind part acts on blade 10, and blade rotates consumption wind energy, changed
Become blast around blade, while blade rotates and drives the pivoting leaf bobbin 12 in vibration damping box to work, and consumes wind energy.Another part is made
Vibrated with controlled structure producing, controlled structure, the mass 2, viscous damper 3 and spring 4 in vibration damping box, which play, to be made
With, mass side-to-side movement, because spring frequency is identical with controlled structure, and then can be with the vibration of control structure.Mass with
Wheel is connected, and wheel is placed on track, extremely smooth between track and wheel.
The following aspects is should be noted in the present embodiment：
First：Blade profile must be according to the specifically consideration such as wind direction, wind speed, be according to the wind speed size specific design in each marine site
Optimization；Second：Liquid damping should be larger from the coefficient of viscosity, and stable performance, radiate faster material, can use damping oil；The
Three：Pivoting leaf bobbin surface should be as far as possible coarse, to increase friction；4th：Should be as far as possible smooth between mass wheel and track；The
Five：Spring frequency should be identical with controlled structure；6th：Snap ring can be such that rotating shaft freely rotates wherein, but can not be along tank wall method
Move in line direction.
In the present embodiment, the installation position of vane type power consumption tuning vibration absorber should be determined according to the concrete condition of structure
Put and quantity, to reach optimal effectiveness in vibration suppression.
The energy that the present invention rotates power consumption by wheel hub blade and tuning quality vibration damping two ways obtains dynamic excitation
The energy of other forms is converted into, develops vane type power consumption tuning vibration absorber.Current vibration absorber uses one kind side more
Formula reduces structural vibration, so lower energy that wind energy can not be sufficiently converted into other forms of high wind effect, and the present invention passes through
Two kinds of approach, can convert wind energy into kinetic energy simultaneously, and then be converted into heat energy, can sufficient consumed energy, reach good
Effectiveness in vibration suppression.In addition, existing vibration absorber can only control the vibration in some direction or certain several direction, it is contemplated that wind-force
The complexity of generating pylon structure local environment, traditional vibration absorber can not tackle the wind of least favorable direction well to cause
Wind vibration response, and the invention automatically controls the direction of vibration absorber, so as to realize the wind of different directions by wind transducer
Shake control.
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 a the above according to the present invention, according to the ordinary technical knowledge and customary means of this area, this is not being departed from
Under the premise of inventing above-mentioned basic fundamental thought, modification, replacement or the change of the other diversified forms made to said structure of the present invention
More, all should fall within the scope and spirit of the invention.
Claims (5)
1. vane type power consumption tuning vibration absorber, it is characterised in that：Including a vibration damping box being arranged on rotating disk, in vibration damping box
Interior bottom surface and upper top surface are separately installed with the mass that can be slidably reciprocated along its surface, and described mass passes through parallel connection
Viscous damper and flexible member are connected with vibration damping box side wall, be horizontally arranged between upper and lower two masses with vibration damping box
The connected liquid damper of wall, is provided with horizontally disposed pivoting leaf bobbin, described rotation in described liquid damper
Sharf is extended to outside vibration damping box to be connected with blade；
Described two masses up and down have identical quality, and two masses have identical frequency with damping box；
Described rotating disk is arranged in a rotating shaft, and wind transducer is provided with described rotating shaft side, and described wind direction passes
Sensor gathers the rotating speed of rotating shaft, and the signal of collection is sent into controller, described controller and then turn for controlling rotating shaft again
Speed and steering, for adjusting the direction of vibration damping box and blade, realize the control in maximum vibration direction；
Described rotating disk is fixed on the upper surface of tower top blower fan.
2. vane type power consumption tuning vibration absorber as claimed in claim 1, it is characterised in that：Under in described vibration damping box
Bottom surface and upper top surface are separately installed with lower railway and upper rail, and the bottom of upper and lower two masses is provided with wheel, wheel difference
Move back and forth along on lower railway and upper rail.
3. vane type power consumption tuning vibration absorber as claimed in claim 1 or 2, it is characterised in that：Described blade and wheel hub
It is connected, the wheel hub is connected with pivoting leaf bobbin, and blade rotates the motion of pivoting leaf bobbin, and the motion of pivoting leaf bobbin damps with liquid
Device friction and then power consumption.
4. vane type power consumption tuning vibration absorber as claimed in claim 1, it is characterised in that：Pass through the firm of regulation elasticity element
Degree, make two masses and damping box that there is identical frequency.
5. vane type power consumption tuning vibration absorber as claimed in claim 1, it is characterised in that：Described pivoting leaf bobbin is with subtracting
The part of Vibration Box contact is provided with a snap ring for making pivoting leaf bobbin freely rotate but can not be moved along tank wall normal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610128271.4A CN105650194B (en) | 2016-03-07 | 2016-03-07 | Vane type power consumption tuning vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610128271.4A CN105650194B (en) | 2016-03-07 | 2016-03-07 | Vane type power consumption tuning vibration absorber |
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| Publication Number | Publication Date |
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| CN105650194A CN105650194A (en) | 2016-06-08 |
| CN105650194B true CN105650194B (en) | 2017-11-10 |
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Families Citing this family (6)
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| CN107740751B (en) * | 2017-11-15 | 2023-12-08 | 宜春学院 | Axial supporting structure of small horizontal axis wind turbine |
| DE102018005852A1 (en) * | 2018-07-25 | 2020-01-30 | Senvion Gmbh | Assembly method and assembly system for a vibration damper of a wind turbine tower |
| CN108869614B (en) * | 2018-08-15 | 2019-03-12 | 山东大学 | A kind of rotary self-adaptive magnetorheological fluid shock absorber |
| CN110881770A (en) * | 2019-12-10 | 2020-03-17 | 惠州市爱华仕运动用品有限公司 | Elastic connection device and backpack |
| CN112081864A (en) * | 2020-09-04 | 2020-12-15 | 天津大学 | Tuned mass damper for out-of-plane vibration control of fan structure |
| CN112576551A (en) * | 2020-12-04 | 2021-03-30 | 苏州浪潮智能科技有限公司 | Server and air-cooled damping vibration attenuation mechanism thereof |
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| DE102004020605A1 (en) * | 2004-04-27 | 2005-11-24 | Erwin W. Kötter Consulting Engineers e.K. | Vibration absorbing or compensating device, designed as housing accommodating mass element attached to helical springs |
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| CN102444541A (en) * | 2011-11-25 | 2012-05-09 | 沈阳工业大学自控技术研究所 | Control device and control method for compensating torque adjusting delay of wind generating set |
| CN104074683A (en) * | 2014-07-07 | 2014-10-01 | 国家电网公司 | Suspended vertical-axis wind driven generator set |
| CN205401584U (en) * | 2016-03-07 | 2016-07-27 | 山东大学 | Harmonious vibration damper of vane type power consumption |
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2016
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1136719A1 (en) * | 2000-03-20 | 2001-09-26 | Hutchinson | Vibration damper, in particular for helicopter rotor |
| DE102004020605A1 (en) * | 2004-04-27 | 2005-11-24 | Erwin W. Kötter Consulting Engineers e.K. | Vibration absorbing or compensating device, designed as housing accommodating mass element attached to helical springs |
| CN1796774A (en) * | 2004-12-30 | 2006-07-05 | 通用电气公司 | Vibration load reduction system for a wind turbine |
| CN102444541A (en) * | 2011-11-25 | 2012-05-09 | 沈阳工业大学自控技术研究所 | Control device and control method for compensating torque adjusting delay of wind generating set |
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| CN205401584U (en) * | 2016-03-07 | 2016-07-27 | 山东大学 | Harmonious vibration damper of vane type power consumption |
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