CN108303231A - A kind of test system for wind energy collecting device single vibration wind tunnel test - Google Patents
A kind of test system for wind energy collecting device single vibration wind tunnel test Download PDFInfo
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- CN108303231A CN108303231A CN201810071063.4A CN201810071063A CN108303231A CN 108303231 A CN108303231 A CN 108303231A CN 201810071063 A CN201810071063 A CN 201810071063A CN 108303231 A CN108303231 A CN 108303231A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The present invention is the test system for wind energy collecting device single vibration wind tunnel test, is included in the wind-tunnel wall slideway of wind-tunnel wall upper edge incoming wind direction setting, the ruler slideway being arranged between wind-tunnel wall slideway, and the clamping device being fixed on ruler slideway；The ruler slideway and clamping device are equipped with more than one, and clamping device is used to that model to be clamped on ruler slideway and be adjusted the intrinsic frequency of model, and model is vibrated along wind-tunnel wall slideway direction；The wind-tunnel wall slideway and ruler slideway are used to adjust the distance between position of model, and adjusting model.The present invention conveniently does interference experiment, then to adjust the eigenfrequncies and vibration models curvilinear motion of model, optimal wind energy conversion plan is obtained out to study by optimizing single-degree-of-freedom air spring pole experimental provision, number that can be by Controlling model and position；And Information Collection System mainly obtains the motion conditions of model using laser direction finder, then achieve the effect that it is more economical it is more practical go research wind power generation.
Description
Technical field
The invention belongs to wind tunnel technique fields in aerodynamics, specially a kind of unidirectionally to shake for wind energy collecting device
The test system of dynamic wind tunnel test.
Background technology
With economic and society fast development, the production of the low power consumption electronics such as radio-based electronic devices, sensor, MEMS
Product it is commonly used, the lasting energy supply of product becomes the hot issue of researcher's care.Due to tradition for the energy (such as electronics,
Battery) electricity is limited, and needs to regularly replace, it can inevitably increase the complexity of work.Based on this reason, there are a large amount of scholars
Have studied a kind of lasting power supply device.Piezoelectric self power technology is that a kind of having efficacious prescriptions by what ambient vibration can be converted to electric energy
Formula.The vibrational energy form of environment mainly has kinetic energy, water kinetic energy, tide energy and mechanical vibrational energy etc., wherein wind energy be can be again
Raw clean energy resource has many advantages, such as large storage capacity, is distributed wide, environmentally protective, sustainable use.Under certain technical conditions,
It is used in human lives that wind energy, which can be used as a kind of important energy and obtain exploitation,.
In Wind Engineering field, generally by the mechanism of the wind-induced vibration of structure in air flow field be broadly divided into flutter, buffeting,
4 class of vortex-induced vibration and galloping.Piezoelectric self power technology is the driving based on hydrodynamics peripheral flow vortex-induced vibration come generator
Tool energy.Vortex-induced vibration induces the mechanism capture wind energy of its resonance using uniform flow cylinder vortex shedding power, forms wind-force with this and drives
Dynamic system generates electricity, and is a kind of generation mode having well adapting to property in low wind conditions.It is worth noting that, above-mentioned
Electricity generation system usually only in the self-generating device piezoelectric cantilever composite construction carry out mechanical analysis.But charming appearance and behaviour is shaken
Dynamic is a kind of aeroelasticity problem of complexity, and structure vibrates under the action of air flow field, and the structure vibrated
Cognition causes flow field change, the variation in flow field that can further result in the change for acting on the aerodynamic force in structure again in turn, this
The mechanism that intercouples being formed between structure and air-flow, this mechanism are known as fluid structurecoupling.Fluid structurecoupling problem is gas
Important one piece in dynamic elasticity mechanics, it can not be solved by simple potential flow theories, and need multi-disciplinary theoretical point
The method that analysis and rigorous experiment are combined is studied.
The inventors of the present application found that the mechanism of most of wind-induced vibration using structure realizes that mechanical energy is converted into electricity
The device of energy does not consider aeroelasticity problem mentioned above, is not based on Fluid Mechanics Computation numerical method, right
The flow field dynamics added under different plate elongate members after Circular Cylinder are analyzed, with clear cantilever beam length to de- whirlpool frequency
The affecting laws of rate and lift, resistance coefficient.Therefore in order to improve the generating efficiency of wind energy, the present invention devises a set of consideration gas
System is tested in the wind tunnel test of dynamic elasticity mechanics problem.
Invention content
In order to solve the problems of prior art, the present invention provides a kind of for wind energy collecting device single vibration wind-tunnel
The test system of experiment, it is single by optimizing for the single-degree-of-freedom aerodynamic model test device that rigidity, quality, the vibration shape can debug
Degree of freedom air spring pole experimental provision facilitates the mechanism of the wind-induced vibration of research and utilization structure to realize that mechanical energy is converted into electricity
Can, it is simple to manufacture, facilitates debugging, shape applicability good.
The present invention adopts the following technical scheme that realize：A kind of test for wind energy collecting device single vibration wind tunnel test
System is included in the wind-tunnel wall slideway of wind-tunnel wall upper edge incoming wind direction setting, and the ruler being arranged between wind-tunnel wall slideway is slided
Road, and the clamping device that is fixed on ruler slideway；The ruler slideway and clamping device are equipped with more than one, clamping dress
The intrinsic frequency for model being clamped on ruler slideway and being adjusted model is set, model is vibrated along wind-tunnel wall slideway direction；Institute
It states wind-tunnel wall slideway and ruler slideway is used to adjust the distance between position of model, and adjusting model.
Preferably, the test system for wind energy collecting device single vibration wind tunnel test further includes being mounted on outside wind-tunnel
The laser direction finder of wall；The laser direction finder is slidably connected at wind-tunnel outer wall by the clamp bracket of laser direction finder；Wind-tunnel
Outer wall is equipped with two tracks along the setting of incoming wind direction, and the both ends of clamp bracket are connect with the track；Clamp bracket is along rail
Road slides, and short transverse of the laser direction finder along clamp bracket in wind-tunnel wall is slided.
Preferably, the test system for wind energy collecting device single vibration wind tunnel test further includes being arranged in wind-tunnel wall
Outside, the information processing system being connect with laser direction finder.
Preferably, the end of the model is equipped with the laminated structure being connect with clamping device；The clamping device includes base
Seat, fixed block and link block；Pedestal includes perpendicular side and bottom face, is equipped with and is used between the side and fixed block of pedestal
It is inserted into the card slot of laminated structure, and the thickness of card slot is less than the thickness of laminated structure, is fastened between the side and fixed block of pedestal
Laminated structure is clamped after connection, and laminated structure is made to be slided along ruler slideway with pedestal；The bottom face of pedestal is solid with link block
Surely it is connected on ruler slideway, ruler slideway is located between the bottom face and link block of pedestal.
Preferably, the laminated structure is steel ruler, and the fixed block is steel ruler fixed block.
From above-mentioned technical proposal it is found that the vertical bar shape single-degree-of-freedom aerodynamic model test device that the present invention designs, is fully examined
Coupling effect of seepage rock deformation is considered.Furthermore, it is contemplated that realize that mechanical energy is converted into the research of electric energy in the mechanism using wind-induced vibration,
It is likely to occur the gas bullet unstable Vibration such as vortex-induced vibration and galloping, is tested using elastic model into promoting the circulation of qi springing is dynamic.The application is logical
Optimization single-degree-of-freedom air spring pole experimental provision is crossed, the mechanism of the wind-induced vibration of research and utilization structure is facilitated to realize that mechanical energy turns
Turn to electric energy.Compared with the existing technology, the application has the following advantages and effect：
(1) slideway, the clamping dress of testee are respectively set on wind-tunnel wall (X axis) and test section ruler (Y-axis)
Slidable connection is set on test section ruler slideway, test section ruler slideway can be along the slideway adjusting position of wind-tunnel wall, the present invention
So as to need to control modal position according to experiment, i.e., Controlling model moves in X, Y plane；In addition, test section
Ruler slideway can be arranged multiple, and multiple clamping devices are added on ruler slideway, so as to by the number of Controlling model and
Interference experiment is conveniently done in position, is then changed with the rigidity (i.e. intrinsic frequency) and mode curve that adjust model, is obtained to study
Go out optimal wind energy conversion plan.
(2) it using bloom and tightens nut and fixes the steel ruler being connect with model end, can conveniently adjust the length of steel ruler
It spends to adjust the intrinsic frequency of model, i.e., can study under different wind-force, wind energy is optimized according to the Vibration Condition of model
Power generator.
(3) can according to experiment needs, by using under varying cross-section shape model (such as prismatic, cylinder, it is rectangular,
Abnormity etc.) guide functions it is different, under identical wind speed, pass through the model for switching the varying cross-section shape under steel ruler, it is convenient
Compare the model equipment for finding out maximal wind-energy conversion, carries out wind power generation.
(4) and laser ranging is installed on wind-tunnel wall in this model to move, this can capture different time domain drag
Motion conditions in the Y direction.It is mounted with laser range finder on wind-tunnel outer wall, different time domain drag can be captured in the side Y
To displacement, facilitate the motion conditions of record cast, and can be gone from the motion conditions of research model research mechanical energy be converted to wind
The efficiency of energy.
(5) the single-degree-of-freedom air spring pole of the application design, it is fairly simple and economical in terms made from debugging, it can
To widen the research and application of aeroelastic test；And such traditional experiment needs to consume a large amount of piezoelectric patches, leads to aeroelastic test
Research and application it is relatively fewer.
Description of the drawings
Fig. 1 is the structural schematic diagram of the test system experimentation section of single vibration wind tunnel test of the present invention；
Fig. 2 is the structural schematic diagram of wind-tunnel wall slideway, test section ruler slideway and clamping device in experimental section；
Fig. 3 is the mounting structure schematic diagram of laser direction finder；
Fig. 4 is the attachment structure schematic diagram of model and clamping device；
Fig. 5 is the structural schematic diagram of model, and the model cross section of wherein a is prismatic, and the model cross section of b is circle, c's
Model cross section is rectangular.
Specific implementation mode
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment
Wind tunnel test includes mainly rigid model manometric test, rigid model dynamometer check, single-degree-of-freedom with category of model
Aeroelastic model test and multi mode aeroelastic model experiment.This patent is mainly by optimizing single-degree-of-freedom gas bullet mould
Type experimental rig goes research to realize that mechanical energy is converted into electric energy using the mechanism of the wind-induced vibration of structure；Optimize single-degree-of-freedom
The mode of aerodynamic model test device then uses laser direction finder record cast mainly by applying wind excitation to model
Motion conditions, while the relevant data transmission of motion conditions is handled data to information processing system, analysis obtains me
Need the purpose studied.
As shown in Figure 1, the present invention is included in the wind-tunnel wall slideway 1 of wind-tunnel wall upper edge incoming wind direction setting, it is arranged in wind
Ruler slideway 2 between the wall slideway of hole, the clamping device 4 being fixed on ruler slideway, and the laser mounted on wind-tunnel outer wall
Direction finder 7；The invention also includes the information processing systems 5 being connect with laser direction finder, are arranged outside wind-tunnel wall.Wherein, directly
Ruler slideway and clamping device be equipped with it is multiple, clamping device for testee, i.e. model 3 to be clamped, as shown in Fig. 2, convenient for into
Interference experiment between row model.Model 3 can be vibrated along wind-tunnel wall slideway direction, i.e., vibrated along X-direction.
Near simulated environment wind regime arrival testee (model for being clamped in clamping device), sent out according to fluid behaviour
Raw vortex shedding, generates Vortex-excited vibration；Ruler slideway and wind-tunnel wall slideway can move clamping device along XY both directions, with
The Vibration Condition of the different location model under same wind load is studied, and then studies the generating efficiency of wind energy collecting device.It secondly can
Multiple identical clamping devices to be arranged on ruler slideway, each clamping device installs an identical model, passes through Y-axis
On ruler slideway and X axis on wind-tunnel wall slideway adjust the distance between model, for studying under same case, along Y
The disturbed condition of the wind energy collecting device of different location in axis direction, and then to the distribution of research wind energy collecting device spatial position to wind
The influence of energy acquisition rate.
Referring to Fig. 3, laser direction finder 7 is mounted on wind-tunnel outer wall, to capture the displacement of different time domain drag.Swash
Light direction finder is slidably connected at wind-tunnel outer wall by the clamp bracket 8 of laser direction finder.Wind-tunnel outer wall is equipped with two along incoming wind
The track 9 of direction setting, the both ends of clamp bracket 8 are connect with the track, and clamp bracket can be slided along track；And laser location
Instrument can be along clamp bracket in the short transverse sliding of wind-tunnel wall, i.e., Z-direction moves up and down.That is, in sliding rail and clamping
Under the collective effect of holder, laser direction finder can be moved in the X-direction of wind-tunnel wall, can also be moved in Z-direction.
As shown in figure 4, clamping device 4 is used to model 3 being fixed on ruler slideway 2, moreover it can be used to adjust and model end
The length for holding the steel ruler 6 of connection, to change the rigidity of model, i.e. intrinsic frequency.Clamping device 4 includes pedestal, steel ruler fixed block
43 and link block 42.Pedestal includes perpendicular side 41 and bottom face 44, is set between the side and steel ruler fixed block 43 of pedestal
It is useful for being inserted into the card slot of steel ruler 6, so that steel ruler is fixed on the same position between pedestal and steel ruler fixed block every time, and block
The thickness of slot is less than the thickness of steel ruler, is connected by nut between the side and steel ruler fixed block of pedestal, steel ruler is clamped after connection,
Steel ruler is set to be slided along ruler slideway with pedestal.By clamping device, the length of steel ruler can conveniently adjust, to according to reality
It tests the vibration for needing to adjust model and spells frequency.The bottom face 44 of pedestal is fixedly connected on directly with link block 42 by a big nut
On ruler slideway, ruler slideway is located between the bottom face and link block of pedestal, to be slided by controlling the horizontal of clamping device
The horizontal degree of freedom of implementation model 3 indirectly.
This patent can facilitate the model of switching varying cross-section shape, conveniently find out a kind of more optimized model equipment,
Wind power generation is carried out, Fig. 5 shows the model of three kinds of varying cross-section shapes.In Figure 5, a is the model of prismatic cross-section, b
For the model of circular cross section, c is the model of square cross section, is tested in incoming wind by the model of varying cross-section shape
Vibration difference under same case.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (8)
1. a kind of test system for wind energy collecting device single vibration wind tunnel test, which is characterized in that including on wind-tunnel wall
Along the wind-tunnel wall slideway of incoming wind direction setting, the ruler slideway being arranged between wind-tunnel wall slideway, and it is fixed on ruler cunning
Clamping device on road；The ruler slideway and clamping device are equipped with more than one, and clamping device is for model to be clamped in
It is vibrated along wind-tunnel wall slideway direction with the intrinsic frequency of adjusting model, model on ruler slideway；The wind-tunnel wall slideway and ruler
The distance between slideway is used to adjust the position of model, and adjust model.
2. the test system according to claim 1 for wind energy collecting device single vibration wind tunnel test, which is characterized in that
The test system for wind energy collecting device single vibration wind tunnel test further includes the laser direction finder mounted on wind-tunnel outer wall；
The laser direction finder is slidably connected at wind-tunnel outer wall by the clamp bracket of laser direction finder；Wind-tunnel outer wall is equipped with two along next
The track of wind direction setting is flowed, the both ends of clamp bracket are connect with the track；Clamp bracket is slided along track, laser direction finder
Short transverse along clamp bracket in wind-tunnel wall is slided.
3. the test system according to claim 2 for wind energy collecting device single vibration wind tunnel test, which is characterized in that
The test system for wind energy collecting device single vibration wind tunnel test further include be arranged outside wind-tunnel wall, with laser location
The information processing system of instrument connection.
4. the test system according to claim 1 for wind energy collecting device single vibration wind tunnel test, which is characterized in that
The end of the model is equipped with the laminated structure being connect with clamping device；The clamping device includes pedestal, fixed block and connection
Block；Pedestal includes perpendicular side and bottom face, is equipped between the side and fixed block of pedestal for being inserted into laminated structure
Card slot, and the thickness of card slot is less than the thickness of laminated structure, and sheet is clamped after being fastenedly connected between the side and fixed block of pedestal
Structure makes laminated structure be slided along ruler slideway with pedestal；The bottom face of pedestal is fixedly connected on ruler cunning with link block
On road, ruler slideway is located between the bottom face and link block of pedestal.
5. the test system according to claim 4 for wind energy collecting device single vibration wind tunnel test, which is characterized in that
The laminated structure is steel ruler, and the fixed block is steel ruler fixed block.
6. the test system according to claim 5 for wind energy collecting device single vibration wind tunnel test, which is characterized in that
It is connected by nut between the side and steel ruler fixed block of the pedestal.
7. the test system according to claim 4 for wind energy collecting device single vibration wind tunnel test, which is characterized in that
The bottom face of the pedestal is fixedly connected on by nut on ruler slideway with link block.
8. the test system according to claim 1 for wind energy collecting device single vibration wind tunnel test, which is characterized in that
The cross-sectional shape of the model is prismatic, circle or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071063.4A CN108303231B (en) | 2018-01-25 | 2018-01-25 | Test system for unidirectional vibration wind tunnel test of wind energy collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071063.4A CN108303231B (en) | 2018-01-25 | 2018-01-25 | Test system for unidirectional vibration wind tunnel test of wind energy collector |
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| CN108303231A true CN108303231A (en) | 2018-07-20 |
| CN108303231B CN108303231B (en) | 2023-05-26 |
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| CN201810071063.4A Active CN108303231B (en) | 2018-01-25 | 2018-01-25 | Test system for unidirectional vibration wind tunnel test of wind energy collector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918079A (en) * | 2018-08-17 | 2018-11-30 | 广州大学 | A kind of wind power generation experimental rig based on parametric vibration principle |
| CN110259500A (en) * | 2019-07-03 | 2019-09-20 | 陕西交通技术咨询有限公司 | The water conservancy diversion measuring device and measuring method of wind cabin deflector for tunnel |
| CN111323201A (en) * | 2020-04-14 | 2020-06-23 | 扬州大学 | Experimental platform for soft tower vortex vibration control research |
| CN114740281A (en) * | 2021-11-30 | 2022-07-12 | 湘潭大学 | Test device and test method for wind-induced vortex-induced vibration power generation |
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| CN110259500A (en) * | 2019-07-03 | 2019-09-20 | 陕西交通技术咨询有限公司 | The water conservancy diversion measuring device and measuring method of wind cabin deflector for tunnel |
| CN110259500B (en) * | 2019-07-03 | 2021-01-29 | 陕西交通技术咨询有限公司 | Diversion measurement device and method for air bin diversion plate of tunnel |
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| CN111323201B (en) * | 2020-04-14 | 2021-11-30 | 扬州大学 | Experimental platform for soft tower vortex vibration control research |
| CN114740281A (en) * | 2021-11-30 | 2022-07-12 | 湘潭大学 | Test device and test method for wind-induced vortex-induced vibration power generation |
| CN114740281B (en) * | 2021-11-30 | 2024-09-03 | 湘潭大学 | Test device and test method for wind-induced vortex-induced vibration power generation |
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