CN110454538B - Composite nested piezodamper for floating offshore wind driven generator - Google Patents
Composite nested piezodamper for floating offshore wind driven generator Download PDFInfo
- Publication number
- CN110454538B CN110454538B CN201910606148.2A CN201910606148A CN110454538B CN 110454538 B CN110454538 B CN 110454538B CN 201910606148 A CN201910606148 A CN 201910606148A CN 110454538 B CN110454538 B CN 110454538B
- Authority
- CN
- China
- Prior art keywords
- spherical cavity
- wind turbine
- energy
- floating offshore
- offshore wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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—Piezo-electric elements being placed under pre-constraint, e.g. placed under compression
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- 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 invention relates to a composite nested piezodamper for a floating offshore wind turbine, which comprises a plurality of layers of nested spherical cavities, wherein liquid (10) and air are filled in each spherical cavity, the inner wall of the spherical cavity (5) at the outermost layer and the inner and outer walls of the other spherical cavities are respectively provided with a piezoelectric ceramic piece (2), and an energy-consuming steel ball (4) is also arranged in the spherical cavity (7) at the innermost layer; the adjacent spherical cavities are fixedly connected through a first elastic energy dissipation assembly, and the spherical cavity (5) at the outermost layer is connected with the inner wall of the wind driven generator (14) through a second elastic energy dissipation assembly. Compared with the prior art, the invention has multiple energy consumption mechanisms and good energy consumption effect, and can utilize the originally dissipated energy and improve the utilization rate of the energy.
Description
Technical Field
The invention relates to a piezoresistance damper, in particular to a composite nested piezoresistance damper for a floating offshore wind turbine.
Background
Wind energy is becoming an important direction of research in the world today as a clean renewable energy source. Compared with a fixed offshore wind driven generator, the floating offshore wind driven generator can get rid of the constraint of different seabed conditions, has good maneuverability and has higher wind energy utilization rate. Therefore, in recent years, the interest in offshore floating wind power technology is increasing, and offshore power plants in areas such as portugal and scotland are already built and put into use successively. Meanwhile, the floating offshore generator has attracted wide attention due to the problems caused by the vibration generated by the load. How to reduce the vibration of the structure more simply, economically and efficiently in the offshore environment becomes an important problem in the offshore wind power generation technology.
During service, the floating offshore generator is subjected to strong wind load, wave load, earthquake load and other related loads, and the service life and the safety performance of the structure are influenced by the generated multi-directional vibration. However, the existing damper has the obvious defects that: (1) the damping capacity for the vertical third dimension is limited; (2) the mechanical energy of vibration is dissipated through heat energy, plastic deformation energy and other modes, and the vibration control capability is weak and the energy utilization rate is low.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing a composite nested damper for a floating offshore wind turbine.
The purpose of the invention can be realized by the following technical scheme:
a composite nested piezodamper for a floating offshore wind turbine comprises a plurality of layers of nested spherical cavities, wherein liquid and air are filled in each spherical cavity, piezoelectric ceramic plates are respectively arranged on the inner wall of the spherical cavity at the outermost layer and the inner and outer walls of the rest spherical cavities, and energy-consuming steel balls are also arranged in the spherical cavity at the innermost layer;
the adjacent spherical cavities are fixedly connected through a first elastic energy dissipation assembly, and the spherical cavity at the outermost layer is connected with the inner wall of the wind driven generator through a second elastic energy dissipation assembly.
Preferably, a plurality of layers of bottom plates are arranged in the innermost spherical cavity, the spherical cavity is divided into a plurality of independent spaces by the plurality of layers of bottom plates, a plurality of energy-consuming steel balls are arranged on the bottom plates of the independent spaces, and piezoelectric ceramic plates are arranged on the bottom plates.
Preferably, the energy-consuming steel balls on each bottom plate comprise steel balls with various specifications and diameters of 50mm-500 mm.
Preferably, the surface of the energy-consuming steel ball is uniformly attached with a viscoelastic damping material, and the viscoelastic damping material is composed of a macromolecular compound.
Preferably, the first elastic energy dissipation assembly comprises an energy dissipation spring and a piezoelectric ceramic piece, two ends of the energy dissipation spring are correspondingly connected with the spherical cavity, and the piezoelectric ceramic piece is fixed below the energy dissipation spring.
Preferably, the second elastic energy dissipation assembly comprises an elastic piezoelectric piece and an energy dissipation spring, one end of the elastic piezoelectric piece is fixedly connected with the outermost spherical cavity through a universal hinge, the other end of the elastic piezoelectric piece is fixedly connected with the inner wall of the wind driven generator through a clamping groove, and two ends of the energy dissipation spring are respectively fixedly connected with the outermost spherical cavity and the inner wall of the wind driven generator.
Preferably, each spherical cavity inner side wall is further provided with a plurality of buffer gaskets, and the buffer gaskets are uniformly distributed along the spherical cavity inner side wall at equal intervals.
Preferably, the material of the buffer gasket is one or more of rubber, plastic, foam, knitted cotton or glass fiber.
Preferably, the volume of the liquid in each spherical cavity is greater than 2/3 of the volume of the spherical cavity.
Preferably, baffles which are arranged in a staggered mode are further arranged on the inner wall of the spherical cavity at the outermost layer and the inner and outer walls of the rest spherical cavities, and the height of each baffle is 1/2-2/3 of the gap between the adjacent spherical cavities.
Compared with the prior art, the invention has the following advantages:
(1) according to the invention, the liquid is arranged in each spherical cavity, the energy-consuming steel balls are arranged in the innermost spherical cavity, and the mode of combining tuned liquid damping and particle damping is adopted, so that the energy-consuming capability is effectively improved, and the noise in working is reduced;
(2) according to the invention, the spherical cavities on all layers are mutually connected through the energy dissipation spring, and the spherical cavity on the outermost layer is connected with the wind driven generator through the elastic piezoelectric sheet and the energy dissipation spring, so that obvious vibration can be generated in the vertical direction, thus the vertical oscillation amplitude of the floating offshore wind driven generator is effectively reduced, and the problem of three-dimensional vibration reduction is solved;
(3) the damper of the invention adopts the following various energy consumption mechanisms, including: the spherical cavity at the outermost layer is connected with the wind driven generator through the elastic piezoelectric sheet and the energy dissipation spring, liquid is filled in the spherical cavity at each layer and a baffle is arranged, the spherical cavity at the innermost layer is provided with the energy dissipation steel balls and is filled with the liquid, and the vibration and energy dissipation efficiency of the damper is improved to the maximum extent under the synergistic action of multiple energy dissipation mechanisms;
(4) the invention can effectively generate electricity: a. the spherical cavity at the outermost layer of the damper is connected with the wind driven generator through the elastic piezoelectric sheets and the energy dissipation springs, the elastic piezoelectric sheets are bent and deformed to generate electricity, the first elastic energy dissipation assemblies arranged on the inner and outer walls of the spherical cavities at all layers and the energy dissipation springs of the first elastic energy dissipation assemblies can simultaneously generate electric energy to be output, and the energy dissipation steel balls in the spherical cavity at the innermost layer collide with the piezoelectric ceramic sheets on the bottom plate to generate electricity, so that electric energy is provided for daily operation of an internal circuit of the wind driven generator, and the efficiency of energy utilization is improved.
Drawings
FIG. 1 is a schematic overall plan view of a composite nested damper according to the present invention;
FIG. 2 is a schematic quarter plan view of the composite nested damper of the present invention;
FIG. 3 is a partial schematic view of the composite nested damper of the present invention.
The piezoelectric energy-saving device comprises an elastic piezoelectric sheet 1, a piezoelectric ceramic sheet 2, an energy-consuming spring 3, an energy-consuming steel ball 4, an outermost spherical cavity 5, an intermediate spherical cavity 6, an innermost spherical cavity 7, a buffer gasket 8, a bottom plate 9, a liquid 10, a universal hinge 11, a lead 12, a fixed node 13, a wind driven generator 14 and a baffle 15.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiments.
Examples
As shown in fig. 1 to 3, a composite nested damper for a floating offshore wind turbine 14 includes a plurality of nested spherical cavities, in this embodiment, three spherical cavities are provided, namely, an outermost spherical cavity 5, an intermediate spherical cavity 6, and an innermost spherical cavity 7.
The liquid 10 is filled in each spherical cavity and air is reserved in each spherical cavity, the volume of the liquid 10 in each spherical cavity accounts for more than 2/3 of the volume of the spherical cavity, at the height, the liquid 10 can normally shake to generate larger dynamic side pressure, and the specific proportion can be determined by calculation and numerical simulation according to the field condition.
The inner wall of the spherical cavity 5 at the outermost layer and the inner and outer walls of the rest spherical cavities are respectively provided with a piezoelectric ceramic piece 2, and an energy-consuming steel ball 4 is also arranged inside the spherical cavity 7 at the innermost layer. The innermost layer of spherical cavity 7 is internally provided with a plurality of layers of bottom plates 9, the spherical cavity is divided into a plurality of independent spaces by the plurality of layers of bottom plates 9, the bottom plates 9 of the independent spaces are respectively provided with a plurality of energy-consuming steel balls 4, and the bottom plates 9 are respectively provided with a piezoelectric ceramic piece 2. The energy-consuming steel balls 4 on each bottom plate 9 comprise steel balls with various specifications and diameters of 50mm-500 mm. Viscoelastic damping materials are uniformly attached to the surfaces of the energy-consuming steel balls 4, and the viscoelastic damping materials are composed of high molecular compounds.
The inner side wall of each spherical cavity is also provided with a plurality of buffer gaskets 8, and the buffer gaskets 8 are uniformly distributed along the inner side wall of each spherical cavity at equal intervals. The material of the buffer gasket 8 is one or more of rubber, plastic, foam, knitted cotton or glass fiber, and the materials are easy to obtain and have good sound insulation and vibration reduction effects. When each spherical cavity shakes, the buffer gaskets 8 can consume energy, and an energy consumption mechanism is increased.
The adjacent spherical cavities are fixedly connected through a first elastic energy dissipation assembly, the first elastic energy dissipation assembly comprises an energy dissipation spring 3 and a piezoelectric ceramic piece 2, two ends of the energy dissipation spring 3 are correspondingly connected with the spherical cavities, and the piezoelectric ceramic piece 2 is fixed below the energy dissipation spring 3. The arrangement of the springs ensures that each spherical cavity can effectively vibrate in the three-dimensional direction, and certain support is provided, so that collision between the inner layer and the outer layer is prevented, and the damper is further damaged.
The outermost spherical cavity 5 is connected with the inner wall of the wind driven generator 14 through a second elastic energy consumption assembly, the second elastic energy consumption assembly comprises an elastic piezoelectric piece 1 and an energy consumption spring 3, one end of the elastic piezoelectric piece 1 is fixedly connected with the outermost spherical cavity 5 through a universal hinge 11, the other end of the elastic piezoelectric piece is fixedly connected with the inner wall of the wind driven generator 14 through a clamping groove, a fixed node 13 is formed at the position, and two ends of the energy consumption spring 3 are respectively fixedly connected with the outermost spherical cavity 5 and the inner wall of the wind driven generator 14. Tests show that the universal hinge 11 can provide a large rotation range, the rotation center can change along with the deformation of the elastic piezoelectric patches 1 and the energy dissipation springs 3, vibration in all directions can be better responded, and the vibration can be uniformly and effectively distributed to the elastic piezoelectric patches 1 and the energy dissipation springs 3.
The invention has the following main characteristics:
1. according to the invention, the liquid 10 is arranged in each spherical cavity, the energy-consuming steel balls 4 are arranged in the innermost spherical cavity 7, and the mode of combining the damping of the tuning liquid 10 and the damping of particles is adopted, so that the energy-consuming capability is effectively improved, and the noise in working is reduced.
2. The spherical cavities on all layers are connected with each other through the energy dissipation springs 3, the spherical cavity 5 on the outermost layer is connected with the wind driven generator 14 through the elastic piezoelectric sheets 1 and the energy dissipation springs 3, and obvious vibration can be generated in the vertical direction, so that the heaving amplitude of the floating offshore wind driven generator 14 is effectively reduced, and the problem of three-dimensional vibration reduction is solved.
3. Various energy consumption mechanisms:
a. the outermost spherical cavity 5 is connected with the wind driven generator 14 through the elastic piezoelectric sheet 1 and the energy dissipation spring 3;
b. liquid 10 is filled in each layer of spherical cavity and a baffle 15 is arranged;
c. the spherical cavity 7 at the innermost layer is provided with energy-consuming steel balls 4 and is filled with liquid 10;
d. and a buffer gasket 8 is arranged on the inner side wall of each spherical cavity.
And multiple energy consumption mechanisms act synergistically, so that the vibration reduction and energy consumption efficiency of the damper is improved to the maximum extent.
4. Various power generation:
a. the spherical cavity 5 at the outermost layer of the damper is connected with the wind driven generator 14 through the elastic piezoelectric sheet 1 and the energy consumption spring 3, and the elastic piezoelectric sheet 1 is bent and deformed to generate electricity;
b. the inner wall and the outer wall of each layer of spherical cavity and the first elastic energy dissipation assembly arranged at the energy dissipation spring 3 of the first elastic energy dissipation assembly can simultaneously generate electric energy for output;
c. the energy-consuming steel balls 4 in the innermost spherical cavity 7 collide with the piezoelectric ceramic sheet 2 on the bottom plate 9 to generate electricity, so that electric energy is provided for daily operation of an internal circuit of the wind driven generator 14, and the energy utilization efficiency is improved.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (10)
1. A composite nested piezoresistance damper for a floating offshore wind turbine is characterized by comprising a plurality of layers of nested spherical cavities, wherein each spherical cavity is internally filled with liquid (10) and is reserved with air, the inner wall of the spherical cavity (5) at the outermost layer and the inner and outer walls of the other spherical cavities are respectively provided with a piezoelectric ceramic piece (2), and the spherical cavity (7) at the innermost layer is internally provided with an energy-consuming steel ball (4);
each adjacent spherical cavity is fixedly connected through a first elastic energy dissipation assembly, and the spherical cavity (5) at the outermost layer is connected with the inner wall of the wind driven generator (14) through a second elastic energy dissipation assembly.
2. The combined nested damper for the floating offshore wind turbine according to claim 1, wherein a plurality of layers of bottom plates (9) are arranged inside the innermost spherical cavity (7), the spherical cavity is divided into a plurality of independent spaces by the plurality of layers of bottom plates (9), a plurality of energy-consuming steel balls (4) are arranged on the bottom plate (9) of each independent space, and a piezoelectric ceramic plate (2) is arranged on each bottom plate (9).
3. The composite nested damper for a floating offshore wind turbine as claimed in claim 2, wherein the energy dissipating steel balls (4) on each bottom plate (9) comprise steel balls of various specifications having a diameter of 50mm-500 mm.
4. The composite nested damper for the floating offshore wind turbine as claimed in claim 1, wherein the viscoelastic damping material is uniformly attached to the surface of the energy consuming steel balls (4), and the viscoelastic damping material is composed of a high molecular compound.
5. The composite nested damper for the floating offshore wind turbine according to claim 1, wherein the first elastic energy dissipation assembly comprises an energy dissipation spring (3) and a piezoelectric ceramic plate (2), two ends of the energy dissipation spring (3) are correspondingly connected with a spherical cavity, and the piezoelectric ceramic plate (2) is fixed below the energy dissipation spring (3).
6. The combined nested damper for the floating offshore wind turbine according to claim 1, wherein the second elastic energy dissipation assembly comprises an elastic piezoelectric sheet (1) and an energy dissipation spring (3), one end of the elastic piezoelectric sheet (1) is fixedly connected with the outermost spherical cavity (5) through a universal hinge (11), the other end of the elastic piezoelectric sheet is fixedly connected with the inner wall of the wind turbine (14) through a clamping groove, and two ends of the energy dissipation spring (3) are respectively fixedly connected with the outermost spherical cavity (5) and the inner wall of the wind turbine (14).
7. The floating offshore wind turbine composite nested damper for floating offshore wind turbine according to claim 1, wherein a plurality of buffer pads (8) are further disposed on the inner side wall of each spherical cavity, and the buffer pads (8) are uniformly distributed along the inner side wall of the spherical cavity at equal intervals.
8. The composite nested damper for a floating offshore wind turbine as claimed in claim 7, wherein the cushion pad (8) is made of one or more of rubber, plastic, foam, knitted cotton or fiberglass.
9. The composite nested damper for a floating offshore wind turbine as claimed in claim 1, wherein the volume of liquid (10) inside each spherical cavity is greater than 2/3 of the spherical cavity volume.
10. The composite nested damper for the floating offshore wind turbine as claimed in claim 1, wherein the baffles (15) are staggered on the inner wall of the spherical cavity (5) at the outermost layer and the inner and outer walls of the rest spherical cavities, and the height of the baffles (15) is 1/2-2/3 of the gap between adjacent spherical cavities.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110454538A CN110454538A (en) | 2019-11-15 |
| CN110454538B true CN110454538B (en) | 2020-11-27 |
Family
ID=68482320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910606148.2A Active CN110454538B (en) | 2019-07-05 | 2019-07-05 | Composite nested piezodamper for floating offshore wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110454538B (en) |
Families Citing this family (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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498884A (en) * | 2013-10-08 | 2014-01-08 | 同济大学 | Suspension type multi-unit impact damper |
| CN204252309U (en) * | 2014-10-10 | 2015-04-08 | 同济大学 | Can automatic homing granule damper |
| CN106930592A (en) * | 2017-04-13 | 2017-07-07 | 兰州理工大学 | A kind of multidirectional compound TMD dampers of ball-type |
| CN206708214U (en) * | 2017-05-12 | 2017-12-05 | 宁波创先轴承有限公司 | A kind of double-layer double-direction cone bearing |
| CN109578503A (en) * | 2018-12-11 | 2019-04-05 | 南京航空航天大学 | Forked type piezo-electric stack damping ring |
-
2019
- 2019-07-05 CN CN201910606148.2A patent/CN110454538B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498884A (en) * | 2013-10-08 | 2014-01-08 | 同济大学 | Suspension type multi-unit impact damper |
| CN204252309U (en) * | 2014-10-10 | 2015-04-08 | 同济大学 | Can automatic homing granule damper |
| CN106930592A (en) * | 2017-04-13 | 2017-07-07 | 兰州理工大学 | A kind of multidirectional compound TMD dampers of ball-type |
| CN206708214U (en) * | 2017-05-12 | 2017-12-05 | 宁波创先轴承有限公司 | A kind of double-layer double-direction cone bearing |
| CN109578503A (en) * | 2018-12-11 | 2019-04-05 | 南京航空航天大学 | Forked type piezo-electric stack damping ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110454538A (en) | 2019-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110454538B (en) | Composite nested piezodamper for floating offshore wind driven generator | |
| CN107416167B (en) | Boats and ships host computer damping base | |
| CN204858839U (en) | Device of making an uproar falls in motor | |
| CN105633320A (en) | Battery pack for new energy automobile | |
| CN104836183B (en) | A kind of many division vibration damping anti-dance devices of annular | |
| CN108437828B (en) | Fuel cell damping device for fuel cell vehicle and fuel cell vehicle | |
| CN113833794A (en) | Vibration isolation base with positive and negative Poisson's ratio honeycomb type structure | |
| CN112026296A (en) | Low-frequency sound insulation honeycomb board | |
| CN104164835A (en) | High-damping vibration attenuation rubber support for bridge | |
| CN212426718U (en) | Vibration reduction type grading damping support | |
| CN107905399A (en) | A kind of electromagnetic damping negative stiffness bearing | |
| CN204399189U (en) | Efficient train shock absorber | |
| CN208023768U (en) | A kind of collisional quenching bar based on piezoelectricity energy consumption | |
| CN212295143U (en) | Frequency modulation liquid column damping device | |
| CN109914635A (en) | A kind of rotation friction energy-dissipating wall | |
| CN114495881A (en) | Nonlinear structural unit and low-frequency broadband noise reduction metamaterial structure | |
| CN211059034U (en) | Pipeline fan convenient to installation just has structure of making an uproar of falling | |
| CN207436304U (en) | A kind of electromagnetic damping negative stiffness bearing | |
| CN106400976A (en) | Anti-overturning disk spring three-dimensional shock-isolation support | |
| CN114481718A (en) | Floating slab track vibration isolator integrating particle damping vibration absorption and band gap vibration damping | |
| CN211145201U (en) | Particle dispersion type damping cushion | |
| CN220850556U (en) | Damping unit and damping device with same | |
| CN217602258U (en) | Combined damper | |
| CN216519373U (en) | Low-noise box body structure of power equipment | |
| CN217108001U (en) | High-damping shock absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |