CN113374649A - Single-pile type offshore floating type fan vibration reduction control structure - Google Patents
Single-pile type offshore floating type fan vibration reduction control structure Download PDFInfo
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- CN113374649A CN113374649A CN202110697771.0A CN202110697771A CN113374649A CN 113374649 A CN113374649 A CN 113374649A CN 202110697771 A CN202110697771 A CN 202110697771A CN 113374649 A CN113374649 A CN 113374649A
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- 238000007667 floating Methods 0.000 title claims abstract description 81
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 206
- 239000010959 steel Substances 0.000 claims abstract description 206
- 238000013016 damping Methods 0.000 claims abstract description 22
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 239000011378 shotcrete Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/22—Foundations specially adapted for wind motors
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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
- F16F15/022—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 dampers and springs in combination
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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
- F16F15/06—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 metal springs
- F16F15/067—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 metal springs using only wound springs
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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
-
- 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
- Y02E10/727—Offshore wind turbines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a single-pile type offshore floating fan vibration damping control structure which comprises a plurality of latticed steel trusses which are arranged outside a floating fan foundation platform and integrated with an annular steel truss to connect a floating fan tower at the center, wherein each latticed steel truss is connected with the upper part of the floating fan tower through a steel strand, the bottom of each latticed steel truss is connected with the lower part of the floating fan foundation platform through a latticed steel truss steel support, the annular steel truss is connected with the upper part of the floating fan foundation platform through the annular steel truss steel support, and a tuned mass damper is arranged in each latticed steel truss. Compared with the prior art, the invention has the advantages of reducing structural vibration, high safety and stability, annular multi-directional control, reducing wave load impact and the like.
Description
Technical Field
The invention relates to the technical field of floating offshore wind power, in particular to a vibration reduction control structure of a single-pile offshore floating type fan.
Background
The offshore floating type wind turbine adopts a floating foundation form, the floating type wind turbine foundation platform and the seabed are connected through the anchor chain, the offshore environment is complex, the floating type wind turbine can be subjected to various complex load effects such as wind load, wave load, ocean current and the like and coupling effects of the load effects, and great challenges are brought to the stability of the floating type wind turbine. The vibration of the floating fan can be increased under the complex load working condition, the generated energy and the safety of the floating fan can be influenced by the vibration effect of the floating fan, and the total cost of the floating fan can be greatly increased. The vibration of the floating fan can be effectively reduced by controlling the floating fan, so that the safety and the power generation efficiency of the floating fan are improved, and the service life of the floating fan is prolonged.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a single-pile offshore floating wind turbine vibration damping control structure.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a marine floating fan damping control structure of single pile formula, forms a plurality of latticed steel trusss that are used for the floating fan pylon of center of connection department including annular steel truss and the annular steel truss that set up outside floating fan foundation platform, every latticed steel truss is connected with floating fan pylon upper portion through steel strand wires respectively, and the bottom is through latticed steel truss steel support and floating fan foundation platform sub-unit connection respectively, annular steel truss pass through annular steel truss steel support and be connected with floating fan foundation platform upper portion, all be equipped with harmonious mass damper in every latticed steel truss.
The upper end of the steel strand is connected with the upper part of the floating fan tower through a steel strand connecting rod, and the lower end of the steel strand is connected with the outer end of the lattice steel truss through a steel strand connecting member.
The plurality of lattice steel trusses are uniformly arranged along the circumferential direction, a steel flat plate is laid at the bottom of each lattice steel truss, and the lower part of each steel flat plate is connected with a steel support of each lattice steel truss.
The lattice steel truss steel support is formed by combining two steel balls and a plurality of steel supports in a hard connection mode, the two steel balls are connected with each other through one steel support, then the two steel supports are connected with a steel flat plate respectively, and the two steel supports with horizontal and downward inclination angles are connected with the lower portion of the floating type fan foundation platform.
The lower end of the steel support of the annular steel truss is fixedly connected with the outer edge of the annular steel truss and is arranged with the steel strand in a crossed and staggered mode along the circumferential direction.
And a steel plate surface layer is paved on the upper surface of the annular steel truss.
The inside and the surface of lattice steel truss and annular steel truss all set up protector for realize anticorrosive protection against the tide.
The tuned mass damper is composed of a spring, a mass block and a viscous damping device which are connected in sequence.
The latticed steel truss and the annular steel truss are positioned above the horizontal plane.
The lattice steel truss be equipped with four, two of them set up in two directions around the windward side, two arrange in the vertical direction in addition for reduce the vibration of floating fan foundation platform in the main direction.
Compared with the prior art, the invention has the following advantages:
firstly, reducing structural vibration: aiming at the problem of overlarge structural vibration of the floating fan, the tuning mass damper serving as a vibration damper is arranged outside the floating fan by connecting the floating fan base platform, the tuning mass damper and a steel strand together, and the tuning mass damper and a structural support system reduce the vibration of the floating fan.
Secondly, the safety and the stability are high: the tuned mass dampers are arranged in the front direction, the rear direction and the vertical direction of the main windward side, so that the vibration of the floating type fan foundation platform in the main direction can be effectively reduced, the steel support at the lower part of the lattice steel truss can better ensure the stability and the safety of the damper device, the steel stranded wires connected to the lattice steel truss and the tower frame are arranged in the four directions of the tower frame and are connected with the tower frame and the lattice steel truss through the connecting members, the horizontal load of the tower frame can be offset, the arrangement of the steel stranded wires can ensure the stability of the lattice steel truss on one hand and can play a certain offset role for the horizontal vibration of the tower frame on the other hand.
Thirdly, annular multi-directional control: the invention forms an annular multi-directional control structure through the arrangement of the four groups of tuned mass dampers and the four groups of steel strands, can effectively reduce the vibration in the main load directions such as wind, wave and flow, and can play a considerable role in vibration reduction aiming at the inconsistency of other directions or the wind, wave and flow directions, thereby effectively improving the overall safety of the floating type fan structure, improving the power generation efficiency and prolonging the service life.
Fourthly, reducing the impact of wave load: the external annular steel truss structure of the floating fan can ensure the stability of the whole vibration damping structure, the tuned mass damper has certain mass, the annular steel truss and the lower steel support can provide enough supporting force for the lattice steel truss, the protection device ensures the safety, effectiveness and durability of the vibration damping control structure, and meanwhile, the annular steel truss forms a blocking surface outside the base platform to dissipate part of wave load, so that the impact effect of the wave load on the base platform is reduced to a certain extent.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the overall structure of the present invention.
Fig. 3 is a left side view of the overall structure of the present invention.
FIG. 4 is a top view of the overall structure of the present invention
Figure 5 is a schematic view of a tuned mass damper arrangement of the present invention.
Fig. 6 is an enlarged view of the structure of the steel truss according to the present invention.
Fig. 7 is an enlarged view of the structure of the ring-shaped steel truss of the present invention.
The notation in the figure is:
1. the wind power generation device comprises a lattice steel truss, 2 steel strand connecting members, 3 steel strands, 4 steel strand connecting rods, 5 steel balls, 6 steel lattice steel truss steel supports, 7 floating type wind turbine foundation platforms, 8 floating type wind turbine towers, 9 engine rooms, 10 blades, 11 hubs, 12 annular steel truss steel supports, 13 annular steel trusses, 14 tuned mass dampers, 15 damping devices, 16 mass blocks, 17 springs.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
As shown in fig. 1-4, the invention provides a vibration damping control structure for a mono-pile offshore floating wind turbine, which comprises a tuned mass damper 14, a lattice steel truss 1, an outer annular steel truss 13, steel strands 3, steel supports and a protection device, wherein the lattice steel truss 1 is connected to the outside of a floating wind turbine foundation platform 7, the lower part of the lattice steel truss is provided with the lattice steel truss steel supports 6, the four lattice steel trusses 1 are connected into a whole through the annular steel trusses 13, the tuned mass damper 14 connected with the floating wind turbine foundation platform 7 is installed inside each lattice steel truss 1, the floating wind turbine tower 8 and the lattice steel truss 1 are connected through the steel strands 3, and the annular steel truss steel supports 12 are connected with the floating wind turbine foundation platform 7 and the outer annular steel truss 13.
One end of lattice steel truss 1 is connected with floating fan foundation platform 7, the other end is connected with outside annular steel truss 13, and be connected with floating fan pylon 8 through steel strand wires 3 and steel strand wires connecting rod 4, the steel flat board is laid to lattice steel truss 1's bottom, steel flat board lower part is equipped with lattice steel truss steel shotcrete 6, protector is arranged on lattice steel truss 1's four sides, 6 lower extremes of lattice steel shotcrete are connected with floating fan foundation platform 7, the upper end is connected with 1 bottom steel flat board of lattice steel shotcrete, connect through the steel ball between the inside each support member of lattice steel shotcrete 6.
One end of the steel strand 3 is connected with the tail end of the lattice steel truss 1, the other end of the steel strand is connected with the floating fan tower 8, the steel strand connecting member 2 is arranged outside the lattice steel truss 1, and the floating fan tower 8 is connected with the steel strand connecting rod 4 serving as connecting pieces at two ends of the steel strand 3.
The protective devices are arranged inside and outside the lattice steel truss 1 and the annular steel truss 13 and are made of anti-corrosion and anti-moisture materials or technical components.
Tuned mass damper 14 comprises a mass 16, a spring 17 and a damping device 15.
The main vibration damper of the invention is a tuned mass damper 14, the mass, damping ratio, rigidity and other parameters need to be optimized for obtaining good vibration damping effect, considering that the mass of the existing tuned mass damper system is larger, the invention can also adopt novel control elements such as a magnetorheological fluid damper, an inertial container and the like, the tuned mass damper adopted in the embodiment is arranged in the lattice steel truss 1, is connected with a floating fan foundation platform 7, one end of a lattice steel truss 1 is connected with a floating fan foundation platform 4, four corners are connected by bolts, other contact components are fixed by adopting a welding mode, the lattice steel truss 1 is arranged above the designed horizontal plane of the floating type fan, the lattice steel truss steel support 6 at the lower part is arranged below the horizontal plane, and corresponding connecting members are reserved and installed in all the parts connected with the floating fan foundation platform 7 and the floating fan tower 8.
The end part of the lattice steel truss 1 is provided with a steel strand connecting member 2, and is fixed by the steel member to keep the steel strand connecting member 2 stable, one end of a steel strand 3 is connected with the steel strand connecting member 2, and the other end is connected with a floating fan tower 8 by a connecting rod 4; the combined steel supports are arranged below the lattice steel truss 1, one ends of the two steel supports are connected with the bottom of the lattice steel truss 1, the other ends of the two steel supports are connected with the other two steel supports through steel balls, after the lattice steel truss steel supports 6 are formed, the lattice steel truss steel supports are connected with the floating type fan foundation platform 7 through welding or bolts, and specifically, a group of steel supports with the horizontal and inclined angles are respectively extended out through the steel balls and are connected with the foundation platform.
The embodiment is an introductory scheme, and different design construction schemes can be adopted in the specific construction and manufacturing process according to conditions such as materials or construction measures and the like.
Claims (10)
1. The utility model provides a single-pile formula offshore floating fan damping control structure, its characterized in that, including set up annular steel truss (13) and annular steel truss (13) outside floating fan foundation platform (7) and form integrative a plurality of lattice steel truss (1) that are used for connecting floating fan pylon (8) of center department, every lattice steel truss (1) is connected with floating fan pylon (8) upper portion through steel strand wires (3) respectively, and the bottom is respectively through lattice steel truss steel brace (6) and floating fan foundation platform (7) sub-unit connection, annular steel truss (13) be connected with floating fan foundation platform (7) upper portion through annular steel truss steel brace (12), all be equipped with harmonious mass damper (14) in every lattice steel truss (1).
2. The vibration damping control structure of the mono-pile offshore floating wind turbine as claimed in claim 1, wherein the upper end of the steel strand (3) is connected with the upper part of the floating wind turbine tower (8) through a steel strand connecting rod (4), and the lower end is connected with the outer end of the lattice steel truss (1) through a steel strand connecting member (2).
3. The vibration damping control structure of the mono-pile offshore floating wind turbine as claimed in claim 1, wherein the plurality of lattice steel trusses (1) are uniformly arranged along the circumferential direction, a steel flat plate is laid at the bottom of each lattice steel truss (1), and the lower part of the steel flat plate is connected with the steel supports (6) of the lattice steel trusses.
4. A mono-pile offshore floating wind turbine damping control structure according to claim 3, characterized in that the lattice steel truss steel support (6) is formed by combining two steel balls and a plurality of steel supports in a hard connection manner, the two steel balls are connected with each other through a steel support, then are respectively connected with a steel flat plate through two steel supports, and are connected with the lower part of the floating wind turbine foundation platform (7) through two steel supports with horizontal and downward inclination angles.
5. The vibration damping control structure of the mono-pile offshore floating wind turbine as claimed in claim 1, wherein the lower end of the steel support (12) of the annular steel truss is fixedly connected with the outer edge of the annular steel truss (13) and is arranged with the steel strands (3) in a circumferentially crossed and staggered manner.
6. A mono-pile offshore floating wind turbine vibration damping control structure according to claim 1, characterized in that the upper surface of the ring-shaped steel truss (13) is laid with a steel plate surface layer.
7. A mono-pile offshore floating wind turbine vibration damping control structure according to claim 1, characterized in that the inner and outer surfaces of the lattice steel truss (1) and the ring steel truss (13) are provided with protective devices for corrosion protection and moisture protection.
8. A mono-pile offshore floating wind turbine damping control structure according to claim 1, characterized in that the tuned mass damper (14) is composed of a spring (17), a mass (16) and a viscous damping device (15) connected in sequence.
9. A mono-pile offshore floating wind turbine damping control structure according to claim 1, characterized in that the lattice steel truss (1) and the ring steel truss (13) are located above the water level.
10. A mono-pile offshore floating wind turbine vibration damping control structure according to claim 3, characterized in that said lattice steel trusses (1) are provided with four, two of them being arranged in two directions in front of and behind the windward side and the other two being arranged in the vertical direction for reducing the vibration of the floating wind turbine foundation platform (7) in the main direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697771.0A CN113374649A (en) | 2021-06-23 | 2021-06-23 | Single-pile type offshore floating type fan vibration reduction control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697771.0A CN113374649A (en) | 2021-06-23 | 2021-06-23 | Single-pile type offshore floating type fan vibration reduction control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113374649A true CN113374649A (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110697771.0A Pending CN113374649A (en) | 2021-06-23 | 2021-06-23 | Single-pile type offshore floating type fan vibration reduction control structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738587A (en) * | 2021-09-23 | 2021-12-03 | 国电联合动力技术有限公司 | Tower barrel assembly and wind generating set |
| CN113864128A (en) * | 2021-10-27 | 2021-12-31 | 上海电气风电集团股份有限公司 | Offshore wind turbine supporting structure and offshore wind turbine |
| CN114278508A (en) * | 2021-12-31 | 2022-04-05 | 华润新能源(邳州)有限公司 | Strong wind resistant offshore wind power generation equipment |
| CN114810502A (en) * | 2022-03-04 | 2022-07-29 | 上海理工大学 | Floating type wind turbine platform with bionic fractal characteristic |
| CN116145712A (en) * | 2022-09-08 | 2023-05-23 | 江苏科技大学 | Vibration-damping anti-scouring device |
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2021
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738587A (en) * | 2021-09-23 | 2021-12-03 | 国电联合动力技术有限公司 | Tower barrel assembly and wind generating set |
| CN113864128A (en) * | 2021-10-27 | 2021-12-31 | 上海电气风电集团股份有限公司 | Offshore wind turbine supporting structure and offshore wind turbine |
| CN114278508A (en) * | 2021-12-31 | 2022-04-05 | 华润新能源(邳州)有限公司 | Strong wind resistant offshore wind power generation equipment |
| CN114278508B (en) * | 2021-12-31 | 2023-08-04 | 华润新能源(邳州)有限公司 | Offshore wind power generation equipment capable of resisting strong wind |
| CN114810502A (en) * | 2022-03-04 | 2022-07-29 | 上海理工大学 | Floating type wind turbine platform with bionic fractal characteristic |
| CN116145712A (en) * | 2022-09-08 | 2023-05-23 | 江苏科技大学 | Vibration-damping anti-scouring device |
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Application publication date: 20210910 |