CN110454538A - A kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating - Google Patents
A kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating Download PDFInfo
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- CN110454538A CN110454538A CN201910606148.2A CN201910606148A CN110454538A CN 110454538 A CN110454538 A CN 110454538A CN 201910606148 A CN201910606148 A CN 201910606148A CN 110454538 A CN110454538 A CN 110454538A
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- 238000013016 damping Methods 0.000 title claims abstract description 37
- 238000005265 energy consumption Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000000919 ceramic Substances 0.000 claims abstract description 17
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 31
- 230000003139 buffering effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/005—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion using electro- or magnetostrictive actuation means
- F16F15/007—Piezoelectric elements being placed under pre-constraint, e.g. placed under compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/709—Piezoelectric means
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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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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Vibration Prevention Devices (AREA)
- Wind Motors (AREA)
Abstract
The present invention relates to a kind of combined type nesting piezo-electric damping devices for floatation type offshore wind generating, ball-type cavity including multilayer nest, each ball-type inside cavity is equipped with liquid (10) and there are air, the inside and outside wall of outermost layer ball-type cavity (5) inner wall and remaining ball-type cavity is respectively equipped with piezoelectric ceramic piece (2), and energy consumption steel ball (4) is additionally provided with inside innermost layer ball-type cavity (7)；Adjacent ball cavity is fixedly connected by the first elastic dissipation energy component, and outermost layer ball-type cavity (5) is connect by the second elastic dissipation energy component with wind-driven generator (14) inner wall.Compared with prior art, the present invention has a variety of energy consumption mechanism, and energy consumption effect is good, and the energy that script dissipates can be used, improve the utilization rate of energy.
Description
Technical field
The present invention relates to a kind of piezo-electric damping devices, more particularly, to a kind of for the compound of floatation type offshore wind generating
Formula nesting piezo-electric damping device.
Background technique
Wind energy just becomes the important directions of world today's research as a kind of clean reproducible energy.Compared to fixed
Offshore wind generating, floatation type offshore wind generating can get rid of the constraint of different seabed conditions, have good motor-driven
Property, and wind energy utilization is higher.It is therefore, in recent years, just growing day by day for the attention rate of floating marine formula wind power technology in the industry,
Completion has been set up successively, has been come into operation in the marine power generation field in the area such as Portugal, Scotland.Meanwhile floatation type marine power generation
Problem brought by the vibration that machine is generated as load action has also caused extensive concern.It is how at sea more simple in environment
Just, the vibration for economically and efficiently reducing structure, becomes an important problem in Offshore Wind Power Generation Technology.
During service, floatation type offshore power generator is by high wind load, wave load, earthquake load and other correlations
The multidirectional vibration of the effect of load, generation will affect the service life and security performance of its structure.But existing damping device
There is more apparent defect: (1) limited to the damping capacity of the vertical third dimension；(2) mechanical energy vibrated is become by thermal energy, plasticity
The modes such as shape energy dissipate, and vibration control ability is weak and capacity usage ratio is low.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind for floatation type sea
The combined type nesting piezo-electric damping device of upper wind-driven generator.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating, the ball-type including multilayer nest
Cavity, each ball-type inside cavity equipped with liquid and there are air, outermost layer ball-type cavity inner wall and remaining ball-type cavity it is interior
Outer wall is respectively equipped with piezoelectric ceramic piece, and innermost layer ball-type inside cavity is additionally provided with energy consumption steel ball；
Adjacent ball cavity is fixedly connected by the first elastic dissipation energy component, and outermost layer ball-type cavity passes through the second elasticity consumption
Energy component is connect with wind-driven generator inner wall.
Preferably, the innermost layer ball-type inside cavity is equipped with multilayer bottom plate, and the multilayer bottom plate is by the ball-type chamber
Body is divided into multiple separate spaces, and multiple energy consumption steel balls are respectively provided on the bottom plate of each separate space, are equipped on the bottom plate
Piezoelectric ceramic piece.
Preferably, the energy consumption steel ball on each bottom plate includes the steel ball for the plurality of specifications that diameter is 50mm-500mm.
Preferably, the energy consumption ball surfaces are uniformly attached with visco-elastic damping material, the viscoelastic damping material
Material is made of high-molecular compound.
Preferably, the first elastic dissipation energy component includes energy dissipation spring and piezoelectric ceramic piece, the energy dissipation spring
Both ends are correspondingly connected with ball-type cavity, and the piezoelectric ceramic piece is fixed below energy dissipation spring.
Preferably, the second elastic dissipation energy component includes elastic piezoelectric piece and energy dissipation spring, the elastic piezoelectric
Piece one end is fixedly connected by universal hinge with outermost layer ball-type cavity, and the other end connects by the way that card slot and wind-driven generator inner wall are fixed
It connects, the energy dissipation spring both ends are respectively fixedly connected with outermost layer ball-type cavity and wind-driven generator inner wall.
Preferably, each ball-type cavity inner wall is additionally provided with multiple buffering spacers, and the buffering spacer is along ball-type cavity
Side wall is equidistantly uniformly distributed.
Preferably, the material of the buffering spacer is one of rubber, plastics, foam, knitted cotton or glass fibre
Or it is a variety of.
Preferably, the volume of each ball-type inside cavity liquid accounts for 2/3 or more of ball-type cavity volume.
Preferably, the inside and outside wall of outermost layer ball-type cavity inner wall and remaining ball-type cavity is additionally provided with staggered gear
Plate, the height of the baffle are the 1/2~2/3 of adjacent ball cavity gap.
Compared with prior art, the present invention has the advantage that
(1) liquid is equipped in each ball-type cavity of the present invention and innermost layer ball-type inside cavity is equipped with energy consumption steel ball, use
Tune the mode that fluid damping and particle damping combine, noise when effectively increasing energy dissipation capacity and reducing work；
(2) each layer ball-type cavity of the present invention is connected with each other by energy dissipation spring, and outermost layer ball-type cavity passes through elastic piezoelectric
Piece and energy dissipation spring are connect with wind-driven generator, can vertically occur significantly to vibrate, to effectively reduce floatation type sea
The heave amplitude of upper wind-driven generator solves the problems, such as three-dimensional vibration damping；
(3) damper of the present invention uses following a variety of energy consumption mechanism, comprising: outermost layer ball-type cavity passes through elastic piezoelectric piece
It is connect with energy dissipation spring with wind-driven generator, each layer ball-type inside cavity fills liquid and baffle, innermost layer ball-type cavity is arranged
Setting energy consumption steel ball simultaneously fills liquid, and a variety of energy consumption mechanism synergistic effects improve the oscillation damping and energy dissipating effect of damper to greatest extent
Rate；
(4) present invention can effectively generate electricity: a, Buddhist nun's device outermost layer ball-type cavity by elastic piezoelectric piece and energy dissipation spring with
Wind-driven generator connection, elastic piezoelectric piece bending deformation power generation, b, each layer ball-type cavity inside and outside wall and the first elastic dissipation energy group
The first elastic dissipation energy component being arranged at the energy dissipation spring of part can produce electricl energy output simultaneously, in c, innermost layer ball-type cavity
The piezoelectric ceramic piece power generation consumed energy on steel ball collision bottom plate, thus the day-to-day operation for the internal circuit of wind-driven generator provides electricity
Can, improve the efficiency of energy utilization.
Detailed description of the invention
Fig. 1 is the integral planar schematic diagram of combined type nesting piezo-electric damping device of the present invention；
Fig. 2 is a quarter floor map of combined type nesting piezo-electric damping device of the present invention；
Fig. 3 is the partial schematic diagram of combined type nesting piezo-electric damping device of the present invention.
Wherein, 1 is elastic piezoelectric piece, and 2 be piezoelectric ceramic piece, and 3 be energy dissipation spring, and 4 be energy consumption steel ball, and 5 be outermost layer ball
Cavity, 6 be middle layer ball-type cavity, and 7 be innermost layer ball-type cavity, and 8 be buffering spacer, and 9 be bottom plate, and 10 be liquid, and 11 are
Universal hinge, 12 be conducting wire, and 13 be stationary nodes, and 14 be wind-driven generator, and 15 be baffle.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.Note that the following embodiments and the accompanying drawings is said
Bright is substantial illustration, and the present invention is not intended to be applicable in it object or its purposes is defined, and the present invention does not limit
In the following embodiments and the accompanying drawings.
Embodiment
As shown in Figures 1 to 3, a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating 14, packet
The ball-type cavity of multilayer nest is included, three layers of ball-type cavity, respectively outermost layer ball-type cavity 5, middle layer ball are arranged in the present embodiment
Cavity 6 and innermost layer ball-type cavity 7.
For each ball-type inside cavity equipped with liquid 10 and there are air, the volume of each ball-type inside cavity liquid 10 accounts for ball-type chamber
2/3 or more of body volume, under this height, liquid 10, which can normally shake, generates biggish dynamic horizontal pressure, and specific ratio can root
It is determined according to field condition by calculating, numerical simulation.
The inside and outside wall of 5 inner wall of outermost layer ball-type cavity and remaining ball-type cavity is respectively equipped with piezoelectric ceramic piece 2, innermost layer
Energy consumption steel ball 4 is additionally provided with inside ball-type cavity 7.Multilayer bottom plate 9 is equipped with inside innermost layer ball-type cavity 7, multilayer bottom plate 9 is by the ball
Cavity is divided into multiple separate spaces, and multiple energy consumption steel balls 4 are respectively provided on the bottom plate 9 of each separate space, are equipped on bottom plate 9
Piezoelectric ceramic piece 2.Energy consumption steel ball 4 on each bottom plate 9 includes the steel ball for the plurality of specifications that diameter is 50mm-500mm.Consume energy steel ball
4 surfaces are uniformly attached with visco-elastic damping material, and visco-elastic damping material is made of high-molecular compound.
Each ball-type cavity inner wall is additionally provided with multiple buffering spacers 8, and buffering spacer 8 is equidistantly equal along ball-type cavity inner wall
Even distribution.The material of buffering spacer 8 is one of rubber, plastics, foam, knitted cotton or glass fibre or a variety of, these materials
Material is easy to obtain, and has good sound insulation effectiveness in vibration suppression.When each ball-type cavity shakes, buffering spacer 8 can consume energy,
Increase energy consumption mechanism.
Adjacent ball cavity is fixedly connected by the first elastic dissipation energy component, and the first elastic dissipation energy component includes energy dissipation spring
3 and piezoelectric ceramic piece 2,3 both ends of energy dissipation spring are correspondingly connected with ball-type cavity, and piezoelectric ceramic piece 2 is fixed on 3 lower section of energy dissipation spring.
Such spring setting ensure that each ball-type cavity can effectively vibrate on three-dimensional, also provide certain support,
The collision of ectonexine is prevented, so that damper is damaged.
Outermost layer ball-type cavity 5 is connect by the second elastic dissipation energy component with 14 inner wall of wind-driven generator, the second elasticity consumption
Energy component includes elastic piezoelectric piece 1 and energy dissipation spring 3, and 1 one end of elastic piezoelectric piece passes through universal hinge 11 and outermost layer ball-type cavity 5
It is fixedly connected, the other end is fixedly connected by card slot with 14 inner wall of wind-driven generator, and stationary nodes 13, energy dissipation spring are here formed as
3 both ends are respectively fixedly connected with 14 inner wall of outermost layer ball-type cavity 5 and wind-driven generator.Experiments have shown that universal hinge 11 can provide
Biggish slewing area, and center of rotation can constantly change, Ke Yigeng with the deformation of elastic piezoelectric piece 1 and energy dissipation spring 3
Good reply all directions vibration, and uniformly it is efficiently assigned to each elastic piezoelectric piece 1 and energy dissipation spring 3.
The inside and outside wall of 5 inner wall of outermost layer ball-type cavity and remaining ball-type cavity is additionally provided with staggered baffle 15, gear
The height of plate 15 is the 1/2~2/3 of adjacent ball cavity gap.Under this height, baffle 15 can allow liquid 10 normally to circulate,
But liquid 10 is allowed ball-type cavity can be pushed to rotate by certain disturbing influence, and when the flowing of liquid 10, squeeze the first elasticity
Energy dissipation spring 3 in energy consuming components, so that the piezoelectric ceramics for being installed on 3 lower section of energy dissipation spring produces electricl energy.
The present invention has following main feature:
1, it is equipped with inside liquid 10 and innermost layer ball-type cavity 7 in each ball-type cavity of the present invention and is equipped with energy consumption steel ball 4, adopted
The mode combined with the damping of tuning liquid 10 and particle damping, making an uproar when effectively increasing energy dissipation capacity and reducing work
Sound.
2, each layer ball-type cavity is connected with each other by energy dissipation spring 3, and outermost layer ball-type cavity 5 passes through 1 He of elastic piezoelectric piece
Energy dissipation spring 3 is connect with wind-driven generator 14, can vertically occur significantly to vibrate, to effectively reduce floatation type sea
The heave amplitude of wind-driven generator 14 solves the problems, such as three-dimensional vibration damping.
3, a variety of energy consumption mechanism:
A, outermost layer ball-type cavity 5 is connect by elastic piezoelectric piece 1 and energy dissipation spring 3 with wind-driven generator 14；
B, each layer ball-type inside cavity fills liquid 10 and baffle 15 is arranged；
C, innermost layer ball-type cavity 7 is arranged energy consumption steel ball 4 and fills liquid 10；
D, buffering spacer 8 is arranged in each ball-type cavity inner wall.
A variety of energy consumption mechanism synergistic effects, improve the oscillation damping and energy dissipating efficiency of damper to greatest extent.
4, a variety of power generations:
A, Buddhist nun's device outermost layer ball-type cavity 5 is connect by elastic piezoelectric piece 1 and energy dissipation spring 3 with wind-driven generator 14, bullet
Property 1 bending deformation of piezoelectric patches power generation；
B, the first elasticity consumption being arranged at the energy dissipation spring 3 of each layer ball-type cavity inside and outside wall and the first elastic dissipation energy component
Energy component can produce electricl energy output simultaneously；
C, the energy consumption steel ball 4 in innermost layer ball-type cavity 7 collides the piezoelectric ceramic piece 2 on bottom plate 9 and generates electricity, and is thus wind-force
The day-to-day operation of the internal circuit of generator 14 provides electric energy, improves the efficiency of energy utilization.
Above embodiment is only to enumerate, and does not indicate limiting the scope of the invention.These embodiments can also be with other
Various modes are implemented, and can make in the range of not departing from technical thought of the invention it is various omit, displacement, change.
Claims (10)
1. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating, which is characterized in that including multilayer
Nested ball-type cavity, each ball-type inside cavity equipped with liquid (10) and there are air, outermost layer ball-type cavity (5) inner wall and
The inside and outside wall of remaining ball-type cavity is respectively equipped with piezoelectric ceramic piece (2), is additionally provided with energy consumption steel ball inside innermost layer ball-type cavity (7)
(4)；
Adjacent ball cavity is fixedly connected by the first elastic dissipation energy component, and outermost layer ball-type cavity (5) passes through the second elasticity consumption
Energy component is connect with wind-driven generator (14) inner wall.
2. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating according to claim 1,
It is characterized in that, be equipped with multilayer bottom plate (9) inside the innermost layer ball-type cavity (7), the multilayer bottom plate (9) is by the ball
Cavity is divided into multiple separate spaces, and multiple energy consumption steel balls (4), the bottom are respectively provided on the bottom plate (9) of each separate space
Piezoelectric ceramic piece (2) are equipped on plate (9).
3. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating according to claim 2,
It is characterized in that, the energy consumption steel ball (4) on each bottom plate (9) includes the steel ball for the plurality of specifications that diameter is 50mm-500mm.
4. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating according to claim 1,
It is characterized in that, described energy consumption steel ball (4) surface is uniformly attached with visco-elastic damping material, the visco-elastic damping material
It is made of high-molecular compound.
5. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating according to claim 1,
It is characterized in that, the first elastic dissipation energy component includes energy dissipation spring (3) and piezoelectric ceramic piece (2), the energy consumption bullet
Spring (3) both ends are correspondingly connected with ball-type cavity, and the piezoelectric ceramic piece (2) is fixed below energy dissipation spring (3).
6. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating according to claim 1,
It is characterized in that, the second elastic dissipation energy component includes elastic piezoelectric piece (1) and energy dissipation spring (3), the elasticity pressure
Electric piece (1) one end is fixedly connected by universal hinge (11) with outermost layer ball-type cavity (5), and the other end passes through card slot and wind-power electricity generation
Machine (14) inner wall is fixedly connected, and the energy dissipation spring (3) both ends are respectively fixedly connected with outermost layer ball-type cavity (5) and wind-force hair
Motor (14) inner wall.
7. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating according to claim 1,
It is characterized in that, each ball-type cavity inner wall is additionally provided with multiple buffering spacers (8), the buffering spacer (8) is along ball-type cavity
Inner sidewall is equidistantly uniformly distributed.
8. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating according to claim 7,
It is characterized in that, the material of the buffering spacer (8) be one of rubber, plastics, foam, knitted cotton or glass fibre or
It is a variety of.
9. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating according to claim 1,
It is characterized in that, the volume of each ball-type inside cavity liquid (10) accounts for 2/3 or more of ball-type cavity volume.
10. a kind of combined type nesting piezo-electric damping device for floatation type offshore wind generating according to claim 1,
It is characterized in that, the inside and outside wall of outermost layer ball-type cavity (5) inner wall and remaining ball-type cavity is additionally provided with staggered baffle
(15), the height of the baffle (15) is the 1/2~2/3 of adjacent ball cavity gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606148.2A CN110454538B (en) | 2019-07-05 | 2019-07-05 | Composite nested piezodamper for floating offshore wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606148.2A CN110454538B (en) | 2019-07-05 | 2019-07-05 | Composite nested piezodamper for floating offshore wind driven generator |
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| Publication Number | Publication Date |
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| CN110454538A true CN110454538A (en) | 2019-11-15 |
| CN110454538B CN110454538B (en) | 2020-11-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178117A (en) * | 2020-11-04 | 2021-01-05 | 兰州理工大学 | Offshore floating type wind turbine vibration damper and connection method |
| CN113187662A (en) * | 2021-06-17 | 2021-07-30 | 山东省渔业技术推广站 | Offshore wind power generation device for deep-water aquaculture net cage |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178117A (en) * | 2020-11-04 | 2021-01-05 | 兰州理工大学 | Offshore floating type wind turbine vibration damper and connection method |
| CN112178117B (en) * | 2020-11-04 | 2024-06-04 | 兰州理工大学 | Marine floating wind turbine vibration damper and connecting method |
| CN113187662A (en) * | 2021-06-17 | 2021-07-30 | 山东省渔业技术推广站 | Offshore wind power generation device for deep-water aquaculture net cage |
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| CN110454538B (en) | 2020-11-27 |
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