CN112943844A - Tower barrel structure vibration damper of high-flexibility tower wind generating set - Google Patents
Tower barrel structure vibration damper of high-flexibility tower wind generating set Download PDFInfo
- Publication number
- CN112943844A CN112943844A CN202110213135.6A CN202110213135A CN112943844A CN 112943844 A CN112943844 A CN 112943844A CN 202110213135 A CN202110213135 A CN 202110213135A CN 112943844 A CN112943844 A CN 112943844A
- Authority
- CN
- China
- Prior art keywords
- tower
- sliding
- generating set
- wind generating
- flexibility
- 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.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- Y02E10/728—Onshore wind turbines
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Wind Motors (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a tower tube structure vibration damper of a high-flexibility tower wind generating set, which comprises a plurality of slide rails, a spring mass block power system, a sliding connection structure and an elastic connection structure, wherein the plurality of slide rails are arranged on the outer side wall of a tower tube along the axis direction of the tower tube; the sliding rail arranged in the middle is connected with a spring mass block power system in a sliding manner; each of the rest slide rails is connected with a sliding connection structure in a sliding way; the elastic connecting structure is used for sequentially connecting the mass blocks arranged on the adjacent slide rails and the sliding connecting structure; the structural vibration damping device can absorb second-order natural frequency vibration energy of the tower drum of the wind generating set to form dissipation, can destroy the excitation condition of the related tower drum, and plays a role in damping the tower drum structure of the high-flexibility tower wind generating set; the device has the advantages of simple design, manufacture and installation, low cost, light weight and small influence on the safety of the tower barrel.
Description
Technical Field
The invention belongs to damping of a tower cylinder structure of a wind generating set, and particularly relates to a damping device of a tower cylinder structure of a high-flexibility tower wind generating set.
Background
With the continuous progress of the development trend of single-machine capacity maximization of the horizontal-axis wind generating set, increasing the height of the tower cylinder is one of feasible choices for capturing higher-quality wind energy resources and improving the generating capacity. Meanwhile, in order to reduce the cost, the light weight technology of the unit components is remarkably developed, the weight and the rigidity of the tower barrel are correspondingly reduced, various influences are integrated, and the natural frequency of the tower barrel is in a descending trend. According to the principle of cylindrical streaming in fluid mechanics, the cylinders are positioned in a flow field, and under the condition of a certain incoming flow speed, the wake flow of the cylinders can form antisymmetric vortex streets. According to the fluid mechanics vortex-induced vibration principle, when a vortex falls off from an attachment surface, the pressure distribution of the attachment surface is influenced, so that regular and alternate pressure changes are formed, and the method is equivalent to applying fixed frequency excitation with the numerical value equal to the vortex separation frequency to a tower barrel. For a high-flexibility tower, the vortex separation frequency of the tower drum is just close to the second-order natural frequency of the tower drum in the normal operation process, so that the vibration energy accumulation of a waist twisting type is driven to occur, and the safety of the tower drum and even a unit is seriously damaged.
Structural vibration damping devices, commonly referred to as tuned mass dampers. The tuned mass damper designed for the first-order natural frequency of a high-rise building is usually installed at the top of the building in a form of concentrated mass due to the utilization requirement of space in the building; the tuned mass damper designed for the first-order natural frequency of the tower of the wind generating set is usually hung at the top of the tower in a simple pendulum mode due to the requirement of space utilization in an engine room. The vibration damping device with the structure usually has good effect and is widely applied, but the second-order natural frequency vibration mode of the high tower structure has no deformation at the top, so that the suppression effect on the 'waist twisting' type vibration is not obvious.
A tuned mass damper designed for the second-order natural frequency of the tower of the wind generating set is generally selected to contain liquid/collision balls and the like in a container, and the accumulation of the vibration energy of the second-order natural frequency of the tower is absorbed and restrained by designing the liquid shaking/collision balls. In order to achieve a better vibration reduction effect, the mass of the tower needs to meet certain requirements, and the tower can be placed on the platform inside the tower barrel under the condition of heavier weight. The advantage is convenient for make, practice thrift cost, installation simple, and the shortcoming is: (1) the dynamic characteristics of the tower drum platform are not considered during design, and the tuned mass damper is not necessarily placed at the height which is most beneficial to absorbing the waist twisting type vibration; (2) the internal space of the tower barrel is occupied, and the operation and maintenance personnel are influenced; (3) the damper has a complex internal structure, and is not beneficial to complete fine modeling and quantitative evaluation of the vibration reduction effect of the tower.
Disclosure of Invention
The invention aims to provide a tower tube structure vibration damper of a high-flexibility tower wind generating set, which overcomes the defects of the existing structure vibration damper for the high-flexibility tower.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a tower barrel structure vibration damper of a high-flexibility tower wind generating set, which comprises a structure vibration damper body, wherein the structure vibration damper body comprises a plurality of slide rails, a spring mass block power system, a sliding connection structure and an elastic connection structure, and the plurality of slide rails are arranged on the outer side wall of a tower barrel along the axial direction of the tower barrel;
the sliding rail arranged in the middle is connected with a spring mass block power system in a sliding manner;
each of the rest slide rails is connected with a sliding connection structure in a sliding way;
the elastic connection structure is used for sequentially connecting the mass blocks arranged on the adjacent sliding rails and the sliding connection structure.
Preferably, the plurality of sliding rails are arranged in the same vertical plane, and the installation plane of the sliding rails is perpendicular to the incoming flow direction.
Preferably, the spring mass power system comprises a mass and a spring, wherein the mass and the spring are sleeved on the slide rail; one end of the spring is fixed at the fixed end of the sliding rail, and the other end of the spring is fixed on the mass block.
Preferably, the sliding connection structure is a sliding ring or a sliding block.
Preferably, the elastic connection structure is a rope or a spring.
Preferably, the natural frequency of the spring mass power system is equal to the second-order natural frequency of the tower.
Preferably, the mounting height of the slide rail where the spring mass block power system is located is the height of the tower cylinder with the maximum vibration mode amplitude corresponding to the second-order natural frequency of the tower cylinder.
Preferably, the installation height of the structural vibration damping device body is the height of a tower barrel which takes the second-order natural frequency of the tower barrel as the fixed frequency to form the shedding vortex street phenomenon.
Preferably, when a single main wind direction exists in a site, a group of structures are arranged, each group of structures comprises two structural vibration damping device bodies, the two structural vibration damping device bodies are located in the same vertical plane and symmetrically arranged on the outer side wall of the tower, and the installation plane is perpendicular to the incoming flow direction;
when a plurality of main wind directions exist in a site, a plurality of groups of structures are arranged, and the mounting plane of each group of structures is perpendicular to the incoming flow direction of the vortex street excitation tower cylinder with second-order natural frequency vibration.
Compared with the prior art, the invention has the beneficial effects that:
according to the damping device for the tower cylinder structure of the high-flexibility tower wind generating set, disclosed by the invention, the vibration of the tower cylinder is absorbed through a spring mass block power system, the relative motion between a mass block and a slide rail is excited, and meanwhile, the mass block pulls an elastic connecting structure to swing; the damping action between the mass block and the slide rail and the deformation action of the elastic connecting structure realize the dissipation of the kinetic energy of the system; the elastic connection structure swings in a flow field to influence the flow velocity distribution near the tower drum and destroy the vortex-induced vibration forming conditions; therefore, the structural vibration damping device of the tower can effectively reduce the second-order natural frequency vibration of the tower structure with light weight; the structural vibration damping device can absorb the second-order natural frequency vibration kinetic energy of the tower drum of the wind generating set to form dissipation, can destroy the excitation condition of the related tower drum, and plays a role in damping the tower drum structure of the high-flexibility tower wind generating set; the device has the advantages of simple design, manufacture and installation, low cost, light weight and small influence on the safety of the tower barrel.
Drawings
Fig. 1 is a schematic structural view of a structural vibration damping device according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the tower tube structure vibration damping device of the high-flexibility tower wind generating set provided by the invention comprises a structure vibration damping device body, wherein the structure vibration damping device body comprises a plurality of slide rails 2, a mass block 3, a spring 4, a sliding connection structure 5 and an elastic connection structure 6, the plurality of slide rails 2 are arranged on the outer side wall of a tower tube 1 along the axial direction of the tower tube 1; the slide rail 2 arranged in the middle is sleeved with a mass block 3 and a spring 4, one end of the spring 4 is fixed at the fixed end of the slide rail 2, and the other end is fixed on the mass block 3.
The rest slide rails 2 are sleeved with a slide connecting structure 5.
The mass blocks 3 arranged on the adjacent slide rails 2 and the sliding connection structures 5 are sequentially connected through elastic connection structures 6.
The plurality of slide rails 2 are located in the same vertical plane.
The free end of the slide rail 2 is provided with a stop block for limiting the stroke range of the mass block 3 and the sliding connection structure 5.
The slide rails 2 are linear guide rails, and the number can be determined according to design requirements; which is used to constrain the direction of motion of the mass 3 and the sliding connection 5, providing damping to the mass 3 through friction.
The mass blocks 3 are concentrated masses, are arranged on the slide rails 2, and vibrate back and forth along the slide rails 2 under the action of the springs 4, and the number of the mass blocks can be determined according to design requirements; which is used to provide a lumped mass for the sprung mass powertrain.
Relative motion exists between the mass block 3 and the slide rail 2, and the kinetic energy of the system is dissipated through damping; pulling the elastic connecting structure 6 generates the swing.
The spring 4 is a mechanical spring, the fixed ends of the mass block 3 and the slide rail 2 are connected on the slide rail 2, and the spring deforms along with the movement of the mass block 3, and the number of the spring is the same as that of the mass block 3; providing restoring force for the sprung mass power system.
The sliding connection structure 5 is a sliding ring or a sliding block, is arranged on the sliding rail 2 and can move along the sliding rail 2, and the number can be determined according to the design requirement; providing a boundary constraint for the elastic attachment structure 6, stretching the elastic attachment structure 6.
The elastic connecting structure 6 is a rope or a spring and is connected with the mass block 3 and the sliding connecting structure 5 on the adjacent slide rail 2; the transmission metering block 3 vibrates to disturb a flow field near the tower; the system kinetic energy is dissipated by the deformation action (relaxation, tensioning).
The working principle of the structural damping device of the invention is described as follows:
when the incoming flow wind speed of the wind generating set reaches a certain critical value in the operation process, the wake flow of the tower drum 1 can form antisymmetric vortex streets, and the pressure change caused by vortex shedding can act on the tower drum 1 in a fixed frequency excitation effect according to the fluid mechanics vortex-induced vibration principle.
For a high-flexibility tower, the excitation frequency is close to the second-order natural frequency of the tower, and the tower shows a waist twisting type vibration. Through the slide rails 2 installed on the outer surface of the tower barrel 1, vibration is transmitted to a spring mass power system, relative motion between the mass block 3 and the slide rails 2 is excited, and meanwhile, the mass block 3 pulls the elastic connecting structure 6 to swing.
The forced vibration of the spring mass block power system is to absorb the vibration kinetic energy of second-order natural frequency from a tower system, and the dissipation of the kinetic energy of the system is realized by the damping action between the mass block 3 and the slide rail 2 and the deformation action of the elastic connecting structure 6;
the elastic connecting structure 6 swings in the flow field to influence the flow velocity distribution near the tower barrel, and the vortex-induced vibration forming conditions are damaged. Therefore, the tower tube structure vibration damper can effectively reduce the waist twisting type vibration of the tower tube structure with light weight.
The technical requirements of the tower tube structure vibration damping device of the high-flexibility tower wind generating set, which are related by the invention, can influence the vibration damping effect of the tower tube structure, so that the vibration damping device needs to be taken as a part of the invention and is described as follows:
the waist twisting type vibration of the tower barrel is the second-order natural frequency vibration of the tower barrel, according to the second-order natural frequency vibration mode of the tower barrel, a horizontal sliding rail 2 is designed and installed in a vertical plane with the vibration amplitude being relatively obvious and perpendicular to the incoming flow direction, a spring mass block power system is sleeved, the natural frequency of the spring mass block power system is designed to be equal to the second-order natural frequency of the tower barrel by adjusting the mass of a mass block 3, the elastic modulus of a spring 4 and other parameters, and the waist twisting type vibration kinetic energy of the tower barrel can be absorbed conveniently.
According to wake flow field analysis of the tower, under the condition that incoming flow wind speed corresponding to waist twisting type vibration occurs, the height range of the tower with the second-order natural frequency of the tower as fixed frequency to form the shedding vortex street phenomenon is determined, in the range and in a vertical plane perpendicular to the incoming flow direction, a sliding connection structure 5 is designed and installed in a mode that a horizontal sliding rail 2 is sleeved, and an elastic connection structure 6 is used for connecting a mass block 3 and the sliding connection structure 5 on the adjacent sliding rail 2.
The vibration kinetic energy of a dissipation system and the damping effect are increased by adjusting the contact area and the contact surface roughness between the mass block 3 and the slide rail 2 and adjusting the length, the elasticity and other parameters of the elastic connecting structure 6; through adjusting parameters such as the quality of the elastic connection structure 6, the stroke range of the sliding connection structure 5 on the slide rail 2 and the like, the swing amplitude of the elastic connection structure 6 is favorably adjusted, and the influence degree of the swing amplitude on the flow velocity distribution near the tower barrel 1 is controlled.
For incoming flow in a specific direction, two sets of tower drum structure vibration damping device bodies can be symmetrically arranged on two sides of a tower drum in a vertical plane perpendicular to the incoming flow direction, so that the vibration damping effect is effectively improved; for the condition that a plurality of main wind directions exist in a specific site, incoming flow directions with wind speeds capable of achieving vortex street excitation tower drum second-order natural frequency vibration can be screened out, tower drum structure vibration damping device bodies are installed in pairs in vertical planes perpendicular to the specific incoming flow directions, and tower drum structure vibration damping devices in different directions are mutually independent.
Because the tower drum structure is circumferentially symmetrical, the tower drum structure vibration damping devices in different orientations can use the same design.
The device and the method effectively realize the vibration reduction of the tower cylinder structure of the high-flexibility tower wind generating set.
When the incoming flow wind speed of the wind generating set reaches a certain critical value in the operation process, the wake flow of the tower barrel can form antisymmetric vortex streets, and the pressure change caused by vortex shedding can act on the tower barrel in a fixed frequency excitation effect according to the fluid mechanics vortex-induced vibration principle. For a high-flexibility tower, the excitation frequency is close to the second-order natural frequency of the tower, and the tower shows a waist twisting type vibration. The vibration is transmitted to a spring mass block power system through the slide rails arranged on the outer side surface of the tower barrel, the relative motion between the mass block and the slide rails is excited, and meanwhile the mass block pulls the elastic connecting structure to swing. The forced vibration of the spring mass block power system is to absorb the vibration kinetic energy of second-order natural frequency from a tower cylinder system, and the dissipation of the kinetic energy of the system is realized by the damping action between the mass block and the slide rail and the deformation action of the elastic connecting structure; the elastic connection structure swings in a flow field to influence the flow velocity distribution near the tower drum and destroy the vortex-induced vibration forming conditions. Therefore, the tower tube structure vibration damper can effectively reduce the waist twisting type vibration of the tower tube structure with light weight.
Claims (9)
1. The tower tube structure vibration damper of the high-flexibility tower wind generating set is characterized by comprising a structure vibration damper body, wherein the structure vibration damper body comprises a plurality of slide rails (2), a spring mass block power system, a sliding connection structure (5) and an elastic connection structure (6), and the slide rails (2) are arranged on the outer side wall of the tower tube (1) along the axis direction of the tower tube (1);
the sliding rail (2) arranged at the middle position is connected with a spring mass block power system in a sliding way;
each of the rest slide rails (2) is connected with a sliding connection structure (5) in a sliding way;
the elastic connection structure (6) is used for sequentially connecting the mass blocks (3) arranged on the adjacent sliding rails (2) with the sliding connection structure (5).
2. The damping device for the tower structure of the high-flexibility tower wind generating set according to claim 1, characterized in that the plurality of sliding rails (2) are arranged in the same vertical plane, and the installation plane of the sliding rails (2) is perpendicular to the incoming flow direction.
3. The damping device for the tower structure of the high-flexibility tower wind generating set according to claim 1, characterized in that the spring mass power system comprises a mass block (3) and a spring (4), wherein the mass block (3) and the spring (4) are sleeved on the sliding rail (2); one end of the spring (4) is fixed at the fixed end of the sliding rail (2), and the other end of the spring is fixed on the mass block (3).
4. The damping device for the tower structure of the high-flexibility tower wind generating set according to claim 1, characterized in that the sliding connection structure (5) is a sliding ring or a sliding block.
5. The damping device for the tower structure of the high-flexibility tower wind generating set according to claim 1, characterized in that the elastic connecting structure (6) is a rope or a spring.
6. The device for damping the tower structure of the high-flexibility tower wind generating set according to claim 1, wherein the natural frequency of the spring mass power system is equal to the second-order natural frequency of the tower.
7. The damping device for the tower structure of the high-flexibility tower wind generating set according to claim 1, characterized in that the mounting height of the slide rail (2) where the spring mass block power system is located is the height of the tower (1) where the second-order natural frequency of the tower corresponds to the maximum vibration mode amplitude.
8. The damping device for the tower structure of the high-flexibility tower wind generating set according to claim 1, characterized in that the installation height of the damping device body is the height of the tower (1) which takes the second-order natural frequency of the tower as the fixed frequency to form the shedding vortex street phenomenon.
9. The tower structure damping device of the high-flexibility tower wind generating set according to claim 1, characterized in that when a single main wind direction exists at a site, a group of structures is provided, wherein the group of structures comprises two structural damping device bodies, the two structural damping device bodies are located in the same vertical plane and symmetrically arranged on the outer side wall of the tower (1), and the installation plane is perpendicular to the incoming flow direction;
when a plurality of main wind directions exist in a site, a plurality of groups of structures are arranged, and the mounting plane of each group of structures is perpendicular to the incoming flow direction of the vortex street excitation tower cylinder with second-order natural frequency vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110213135.6A CN112943844B (en) | 2021-02-25 | 2021-02-25 | Tower barrel structure vibration damper of high-flexibility tower wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110213135.6A CN112943844B (en) | 2021-02-25 | 2021-02-25 | Tower barrel structure vibration damper of high-flexibility tower wind generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112943844A true CN112943844A (en) | 2021-06-11 |
| CN112943844B CN112943844B (en) | 2022-05-03 |
Family
ID=76246282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110213135.6A Active CN112943844B (en) | 2021-02-25 | 2021-02-25 | Tower barrel structure vibration damper of high-flexibility tower wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112943844B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2035215A (en) * | 2023-05-22 | 2023-08-11 | Huaneng Renewables Corporation Ltd Hebei Branch | Vortex-induced vibration detection method and system for grid-connected operation of wind turbine generator set and storage medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864853A (en) * | 2012-09-29 | 2013-01-09 | 浙江工业大学 | Tuned mass damper for performing vibration attenuation on tall tower |
| CN104141352A (en) * | 2014-07-21 | 2014-11-12 | 天津大学 | Oscillating type dampers used for vibration prevention of tower |
| CN107152100A (en) * | 2017-05-31 | 2017-09-12 | 浙江工业大学 | The ATMD vibration absorbers of Tuned mass damper composite construction |
| CN107387334A (en) * | 2017-09-11 | 2017-11-24 | 北京金风科创风电设备有限公司 | Floating body equipment for inhibiting vibration of tower drum |
| CN209483859U (en) * | 2019-01-23 | 2019-10-11 | 湖南科技大学 | Land wind-driven generator tower damping rope |
| CN111779152A (en) * | 2020-07-27 | 2020-10-16 | 浙江工业大学 | TMD vibration damper for ultrahigh wind turbine stand column |
| US20200378466A1 (en) * | 2017-02-21 | 2020-12-03 | Vestas Wind Systems A/S | Tower vibration damper |
| CN112178117A (en) * | 2020-11-04 | 2021-01-05 | 兰州理工大学 | Offshore floating type wind turbine vibration damper and connection method |
| CN212429101U (en) * | 2020-07-06 | 2021-01-29 | 国电投河南电力工程有限公司 | Tower barrel shockproof structure of wind generating set |
-
2021
- 2021-02-25 CN CN202110213135.6A patent/CN112943844B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864853A (en) * | 2012-09-29 | 2013-01-09 | 浙江工业大学 | Tuned mass damper for performing vibration attenuation on tall tower |
| CN104141352A (en) * | 2014-07-21 | 2014-11-12 | 天津大学 | Oscillating type dampers used for vibration prevention of tower |
| US20200378466A1 (en) * | 2017-02-21 | 2020-12-03 | Vestas Wind Systems A/S | Tower vibration damper |
| CN107152100A (en) * | 2017-05-31 | 2017-09-12 | 浙江工业大学 | The ATMD vibration absorbers of Tuned mass damper composite construction |
| CN107387334A (en) * | 2017-09-11 | 2017-11-24 | 北京金风科创风电设备有限公司 | Floating body equipment for inhibiting vibration of tower drum |
| CN209483859U (en) * | 2019-01-23 | 2019-10-11 | 湖南科技大学 | Land wind-driven generator tower damping rope |
| CN212429101U (en) * | 2020-07-06 | 2021-01-29 | 国电投河南电力工程有限公司 | Tower barrel shockproof structure of wind generating set |
| CN111779152A (en) * | 2020-07-27 | 2020-10-16 | 浙江工业大学 | TMD vibration damper for ultrahigh wind turbine stand column |
| CN112178117A (en) * | 2020-11-04 | 2021-01-05 | 兰州理工大学 | Offshore floating type wind turbine vibration damper and connection method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2035215A (en) * | 2023-05-22 | 2023-08-11 | Huaneng Renewables Corporation Ltd Hebei Branch | Vortex-induced vibration detection method and system for grid-connected operation of wind turbine generator set and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112943844B (en) | 2022-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209619825U (en) | Suspension bridge damping rope | |
| CN110296182B (en) | Tuned mass damper vibration reduction system incorporated into nonlinear energy trap | |
| CN104594520A (en) | Multi-dimensional adjustable collision energy dissipation device | |
| CN107419816B (en) | Vibration damper for controlling three-dimensional translation and torsion direction thereof | |
| EP2195529A2 (en) | Windturbine support tower with pendulum-damping means | |
| CN101806104A (en) | Suspended frequency modulation mass damper | |
| CN112943844B (en) | Tower barrel structure vibration damper of high-flexibility tower wind generating set | |
| CN102345333A (en) | Variable-rigidity and variable-damping tuned mass damper | |
| CN109826334B (en) | Cylindrical tuned liquid column damper | |
| CN110273487B (en) | Low-frequency vertical vibration reduction tuned mass damper capable of remarkably reducing static elongation of spring | |
| CN209483859U (en) | Land wind-driven generator tower damping rope | |
| CN109577361A (en) | Frequency damp adjustable two-freedom universal horizontal vibration damping tuned mass damper | |
| CN109629400A (en) | A kind of vertical vibration damping tuned mass damper of adjustable low frequency and its working method | |
| CN204418411U (en) | The adjustable energy by collision vibration absorber of a kind of multidimensional | |
| CN216111915U (en) | Quasi-zero rigidity combined ultralow frequency vibration reduction system | |
| CN202338591U (en) | Space-borne variable-damper vibration absorbing device | |
| CN201660980U (en) | Suspended frequency modulation mass damper | |
| CN106368343B (en) | A kind of sag damping rope | |
| CN212388335U (en) | Self-anchoring and self-charging type adjustable hydraulic fluid damper | |
| CN102338188B (en) | Air spring vibration isolator based on piston type liquid viscous damping action | |
| CN117759676A (en) | Vibration damper for offshore wind power tower | |
| CN109538686A (en) | The three-dimensional vibration absorber and design method of totally enclosed type sound barrier on a kind of high metal bridge | |
| CN116044954B (en) | Bidirectional tuning corrugated liquid column damper and mounting method thereof | |
| CN115596800B (en) | Floating fan vibration damper and implementation method | |
| CN215106211U (en) | Parallel spring plate type tuned mass damper with adjustable frequency range |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221228 Address after: 102209 building a, Huaneng talent innovation and entrepreneurship base, Beiqijia future science and Technology City, Changping District, Beijing Patentee after: HUANENG CLEAN ENERGY Research Institute Patentee after: Huaneng Wulate Zhongqi new energy power generation Co.,Ltd. Address before: 102209 building a, Huaneng talent innovation and entrepreneurship base, future science and Technology City, Beiqijia Town, Changping District, Beijing Patentee before: HUANENG CLEAN ENERGY Research Institute |
|
| TR01 | Transfer of patent right |