CN110514402A - A kind of experimental provision of wave energy apparatus performance test - Google Patents
A kind of experimental provision of wave energy apparatus performance test Download PDFInfo
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- CN110514402A CN110514402A CN201910892340.2A CN201910892340A CN110514402A CN 110514402 A CN110514402 A CN 110514402A CN 201910892340 A CN201910892340 A CN 201910892340A CN 110514402 A CN110514402 A CN 110514402A
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- 238000011056 performance test Methods 0.000 title claims abstract description 12
- 239000006247 magnetic powder Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 14
- 238000013016 damping Methods 0.000 description 20
- 238000011160 research Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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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
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention provides a kind of experimental provision of wave energy apparatus performance test, including float, torque power sensor, magnetic powder brake, spring and the axes of inertia；The float is arranged vertically and is connect by gear & rack structure with torque power sensor, described magnetic powder brake one end is connect with torque power sensor, the other end and inertia axis connection, the torque power sensor and magnetic powder brake are arranged on the horizontal structure of bracket, the spring one end is fixed on bracket, the other end is fixed on float upper end, it further include pulley slideway structure, the slideway is arranged on the vertical structure of bracket, the pulley side and float are tangent, the other side is tangent with slideway, it further include current controller and data acquisition equipment, the current controller is connect with magnetic powder brake, the data acquisition equipment is connect with torque power sensor, the present invention is mechanical driving device, relative to hydraulic system, friction is small for it, it is suitble to small than ruler test in labs.
Description
Technical field
The present invention relates to a kind of experimental provision more particularly to a kind of experimental provisions of wave energy apparatus performance test, belong to
New energy use technology.
Background technique
In recent years, the application prospect wide in view of wave energy utilizing apparatus, increasingly by scholars and engineer
Concern.For wave energy apparatus hydrodynamics characteristic and Energy Output, common research means specifically include that theoretical point
Analysis, numerical simulation, experimental study and real sea situation test.It wherein, than ruler experimental study is particularly important in the small of laboratory stage
Previous research work, the test in wave flume can intuitively react the performance of wave power device, be wave power device into one
Step research and development provide technical support, and provide verify data for theory analysis and numerical simulation.
For Wave energy electric generator, hydraulic pressure generating system is energy output (the power take- of competitiveness the most
Off, PTO) system.Therefore it is conducted a research and is answered as energy output system using hydraulic pressure generating system in the physical experiments stage
It is ideal chose.For model test, if to each physical parameter of prototype hydraulic pressure generating system (PTO damping force, just
Degree, quality, frictional force etc.) parameter for testing required hydraulic pressure generating system can be obtained by weight of test scaling factor carries out.
In general, the physical parameter of PTO system needed for laboratory is smaller after reduced scale.For small-scale liquid needed for laboratory
For pressure electric system, existing manufacturing process can satisfy the demand of PTO damping force, rigidity and quality, but be extremely difficult to
The frictional force of the small-sized hydraulic electricity generation system of the requirement of frictional force, i.e. prior art manufacture is significantly greater than ideal value.Accordingly, it is difficult to
Physical experiments are carried out using small-sized hydraulic electricity generation system under conditions of meeting scaling factor.
For oscillation float type wave energy conversion device physical model test, there is scholar to propose a kind of by magnetic powder brake, torsion
The wave energy device for testing power of the components such as square power sensor, tension controller, rack-and-pinion, pulley slideway composition, is realized
Influence to varying environment variable to energy capture, but for PTO system specificity analysis, experimental provision, which is difficult to meet test, to be wanted
It asks, it can not influence to the quality and stiffness variation for probing into PTO to energy capture characteristic.For experimental study, to disclose
The affecting laws of wave energy the capture mechanism and each parameter of Wave energy electric generator, need to study PTO system damping force, quality and rigidity
Influence of the variation to Wave energy electric generator performance.Therefore, for the laboratory research of wave power device, establish it is a set of can
Simulation typical hydraulic system PTO damping force, quality and rigidity simultaneously there is the small energy output system of smaller frictional resistance then to anticipate
Justice is great.
The damping force characteristic of hydraulic pressure generating system is a kind of special nonlinear dampling power, i.e. Coulomb damping power.And magnetic powder
Brake can preferably generate Coulomb damping power, therefore can generate typical Coulomb damping power by magnetic powder brake.This patent
Invent a kind of test with smaller friction damping force and adjustable PTO system damping force (Coulomb damping power), quality and rigidity
Device and test method.
Summary of the invention
The purpose of the invention is to simulate typical non-linear Coulomb damping power, the output energy of real-time measurement PTO system
Amount, and can flexible modulation PTO system as needed rigidity and quality, analyze the variation of different PTO damping forces and output power
Trend, realizes the research means of abundant wave energy apparatus, and the research and development for wave energy apparatus provide technical support and provide a kind of wave
The experimental provision of unrestrained energy device performance test.
The object of the present invention is achieved like this:
A kind of experimental provision of wave energy apparatus performance test, including float, torque power sensor, magnetic powder brake,
Spring and the axes of inertia；The float is arranged vertically and is connect by gear & rack structure with torque power sensor, the magnetic powder
Brake one end is connect with torque power sensor, the other end and inertia axis connection, the torque power sensor and magnetic powder system
Dynamic device is arranged on the horizontal structure of bracket, and the spring one end is fixed on bracket, and the other end is fixed on float upper end, also wraps
Include pulley slideway structure, the slideway is arranged on the vertical structure of bracket, and the pulley side and float are tangent, the other side with
Slideway is tangent, further includes current controller and data acquisition equipment, and the current controller is connect with magnetic powder brake, the number
It is connect according to acquisition equipment with torque power sensor.
The invention also includes features some in this way:
1. passing through rigid axis connection between the gear, torque power sensor and magnetic powder brake；
2. the slideway is nylon material, the axes of inertia are lead material；
3. the bracket is fixed on basin bottom.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is mechanical driving device, and relative to hydraulic system, friction is small, is suitble in the small ratio of labs
Ruler test；It can produce a kind of typical non-linear PTO damping force, i.e. Coulomb damping power, damping force can characterize hydraulic electricity generation
The damping force characteristic of system, and can real-time measurement PTO damping force and output energy；PTO system is easily adjusted according to test requirements document
The parameter (damping force, quality and rigidity) of system, to study each parameter to the Influencing Mechanism of wave power device characteristic.
Detailed description of the invention
Fig. 1 is cross-sectional view of the structure of the invention；
Fig. 2 is structure top view of the invention.
Wherein: 1. floats, 2. rack gears, 3. gears, 4. stiff shafts, 5. torque power sensors, 6. magnetic powder brakes, 7. are used to
Property axis, 8. springs, 9. brackets, 10. slideways, 11. pulleys, 12. current controllers, 13. data acquisition equipments.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing.
A kind of experimental provision and method of wave energy apparatus performance test, mainly include float 1, torque power sensor 5,
Magnetic powder brake 6, spring 8 and the axes of inertia 7.PTO system is by current controller 12, magnetic powder brake 6, spring 8 and 7 groups of the axes of inertia
At.The axes of inertia 7 are connected with magnetic powder brake 6, by selecting the axes of inertia 7 of different the moment of inertias to reach the matter of control PTO system
The purpose of amount；1 top of float is fixed in the upper end of spring 8, and float 1 is fixed in lower end, and spring 8 is arranged vertically, by selecting not
With the spring of rigidity to reach adjustment PTO system rigidity purpose.12 one end of current controller is connected with power supply, the other end and magnetic powder
Brake 6 is connected, and the torque output of control torque sensor 5 is reached with the output electric current for crossing control current brake 12, into
And achieve the purpose that control action in the PTO damping force on float 1；Float does heaving, using 2 traditional machine of gear 3- rack gear
Structure connects float 1 and PTO system, can switch to be axially moved by the linear motion of float in this way, to facilitate PTO system to test.
For torque power sensor 5 between gear 3 and magnetic powder brake 6, acquisition equipment and torque power sensor 5 pass through transmission line
Torque sensor 5 can be read directly about the data such as torque, power, revolving speed, torque power sensing in connection, data acquisition equipment
Device 5, magnetic powder brake 6 are placed on bracket 9, which is fixed on above float；The axes of inertia 7 are placed in the outermost of PTO system,
So the axes of inertia 7 with characteristic the moment of inertia can be replaced, conveniently to reach the mesh for adjusting PTO system quality
's；Spring 8 is placed in 1 top of float, and the upper end of spring 8 is fixed, and lower end is connected directly with float 1, so can be more square
Just replacement spring, to achieve the purpose that adjust PTO system rigidity；Float is connected using 10 mode of pulley 11- slideway, thus real
Now vertical guide pile function, limits its heaving, substitutes sliding friction using rolling friction, chooses the lesser pulley of coefficient of friction
11 are fixed on float front and rear sides, which may make float 1 to do catenary motion under wave action, and have smaller
Frictional resistance.Torque power sensor 5 is between gear and magnetic powder brake 6, data acquisition equipment 13 and torque power
Sensor 5 is connected by transmission line, and so torque power sensor 5 can directly read the torque of the generation of magnetic powder brake 6
And power.Connection between gear-torque power sensor 5- magnetic powder brake 6 is connected using stiff shaft 4, is choosing stiff shaft
4 when, the axis of small radii and length should be selected, can to avoid the added moment of inertia as caused by stiff shaft 4, reduce test data
Error.Torque power sensor 5 and magnetic powder brake 6 are fixed on bracket 9, which is fixed on float upper side, bracket 9
It should be about the distance of three times wave height at a distance from the upside of float, when to avoid float movement, upper wall is touched with bracket 9
It hits.And the data acquisition equipment 13 being connected with torque power sensor 5 and the current controller being connected with magnetic powder brake 6
12 are placed in sink one side.The position of float 1 is more preferably placed on rear side of sink, should not be too close at a distance from wave maker, and such one
The secondary reflection of wave paddle can be reduced as far as possible, be conducive to the acquisition of long-time element of wave simulation and valid data.It is used
Property axis 7 made of lead material, therefore the axes of inertia 7 of smaller size smaller can have biggish the moment of inertia.
In addition to the implementation, the present invention can also have other embodiments, can also be applied to other oscillations by transformation
Float type wave power device (such as buoyancy swinging type wave energy device).All technical solutions formed using equivalent substitution or equivalent transformation,
Fall in the present invention claims protection scope.
Claims (5)
1. a kind of experimental provision of wave energy apparatus performance test, characterized in that including float, torque power sensor, magnetic powder
Brake, spring and the axes of inertia；The float is arranged vertically and is connect by gear & rack structure with torque power sensor, institute
State magnetic powder brake one end to connect with torque power sensor, the other end and inertia axis connection, the torque power sensor and
Magnetic powder brake is arranged on the horizontal structure of bracket, and the spring one end is fixed on bracket, and the other end is fixed on float
End, further includes pulley slideway structure, and the slideway is arranged on the vertical structure of bracket, and the pulley side and float are tangent,
The other side is tangent with slideway, further includes current controller and data acquisition equipment, and the current controller and magnetic powder brake connect
It connects, the data acquisition equipment is connect with torque power sensor.
2. the experimental provision of wave energy apparatus performance test according to claim 1, characterized in that the gear, torque
Pass through rigid axis connection between power sensor and magnetic powder brake.
3. the experimental provision of wave energy apparatus performance test according to claim 1 or 2, characterized in that the slideway is
Nylon material, the axes of inertia are lead material.
4. the experimental provision of wave energy apparatus performance test according to claim 1 or 2, characterized in that the bracket is solid
It is scheduled on basin bottom.
5. the experimental provision of wave energy apparatus performance test according to claim 3, characterized in that the bracket is fixed on
Basin bottom.
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| CN201910892340.2A CN110514402A (en) | 2019-09-18 | 2019-09-18 | A kind of experimental provision of wave energy apparatus performance test |
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| CN201910892340.2A CN110514402A (en) | 2019-09-18 | 2019-09-18 | A kind of experimental provision of wave energy apparatus performance test |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030625A (en) * | 2021-03-23 | 2021-06-25 | 大连理工大学 | Laboratory land test method for energy conversion efficiency of oscillating float type wave energy device |
| CN115901174A (en) * | 2022-12-05 | 2023-04-04 | 华南理工大学 | Floating body experiment platform capable of realizing multi-degree-of-freedom movement of floating body |
| CN116202666A (en) * | 2023-02-24 | 2023-06-02 | 华南理工大学 | Integrated experimental device and method for testing performance of wave energy floater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115901174B (en) * | 2022-12-05 | 2023-08-22 | 华南理工大学 | Floating body experimental platform capable of realizing multi-degree-of-freedom motion of floating body |
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| CN116202666B (en) * | 2023-02-24 | 2023-09-22 | 华南理工大学 | Integrated experimental device and method for testing performance of wave energy floater |
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