CN2737980Y - Structural damper for wind wheel blades - Google Patents
Structural damper for wind wheel blades Download PDFInfo
- Publication number
- CN2737980Y CN2737980Y CNU2004200962253U CN200420096225U CN2737980Y CN 2737980 Y CN2737980 Y CN 2737980Y CN U2004200962253 U CNU2004200962253 U CN U2004200962253U CN 200420096225 U CN200420096225 U CN 200420096225U CN 2737980 Y CN2737980 Y CN 2737980Y
- Authority
- CN
- China
- Prior art keywords
- wind wheel
- blade
- wheel blade
- damping
- layer
- 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.)
- Expired - Fee Related
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Wind Motors (AREA)
Abstract
The utility model relates to a structural damper for wind wheel blades, mainly comprising a wind wheel blade made of glass-fiber reinforced plastics composite material. The utility model is characterized in that at least one structural damper matched with the shape of the blade is arranged along the place of the radial direction and the transverse direction of the wind wheel blades; the structural damper makes the damping material and the wind wheel blade bond to an integration. The damping material is made of damping rubber, especially being made of viscoelastic state damping rubber, which can decrease or eliminate the vibration problem of the blade under the low temperature and stalled environment and effectively decrease or eliminate vibration phenomenon in a wide range of the operating frequency to increase the utilization ratio of the set and prolong the service life of the blades.
Description
Technical field
The utility model relates to damping, refers to a kind of wind wheel blade that is used for wind power generating set especially under stall, low-temperature condition, under the situation that blade is in is shimmy, reverse, it is implemented the structural damping device of the wind wheel blade of damping.
Background technique
The wind wheel blade of wind power generating set is to be made by glass fiber reinforced plastics composite material, because composite material (as-20 ℃) when low temperature environment, its structural damping descends, and causes blade that the moment jitter phenomenon takes place, and influences the generated energy and the working life of unit.External in order to solve the vibration problem of wind wheel blade, the vibration of especially shimmy direction, the general method that liquid condenser is installed in blade tip that adopts, liquid promptly is housed in pipe, and by the mobile absorption energy of liquid in pipe, so that blade working is steady, but the defective of this liquid condenser is: can only play damping effect to blade in very narrow frequency range, its effect is undesirable, and reduce working life.
Summary of the invention
The utility model purpose is: a kind of structural damping device of wind wheel blade is provided, and this structural damping device can be radially being provided with tangential position of blade, and can reduce or eliminate the vibration problem of blade under the environment of low temperature stall.
Another purpose of the utility model is: a kind of structural damping device of wind wheel blade is provided, can reduces or eliminates the oscillation phenomenon of blade effectively in very wide operating frequency range, with the availability that improves unit, the working life that prolongs blade.
The structural damping device of a kind of wind wheel blade of the present utility model, mainly comprise the wind wheel blade of making by glass fiber reinforced plastics composite material, it is characterized in that: radially at least one structural damping device that is complementary with blade shape is arranged along wind wheel blade with tangential position device, this structural damping device by tackiness agent with damping material and wind wheel blade is bonding is integral.Wherein:
Described structural damping device is integral the internal face that damping material is bonded in wind wheel blade by resin binder.
The order that described structural damping implement body is arranged is: be coated with the first layer damping material on the internal face of first layer wind wheel blade, the second layer is a frp layer, is coated with second layer damping material on it, is coated with the 3rd layer on the second layer damping material and is frp layer.
Described damping material is damping rubber, viscoelastic attitude damping rubber.
Advantage of the present utility model: owing to radially at least one structural damping device that is complementary with blade shape is arranged with tangential position device along wind wheel blade, this structural damping device is in the vibration processes of blade, can increase the deformable blade constraint, absorb vibrational energy, can in very wide operating frequency range, reduce or eliminate the oscillation phenomenon of blade effectively, solved the vibration problem under the low temperature stalled condition effectively, after implementing this technology, through test and wind energy turbine set post-installation review, this blade natural frequency remains unchanged substantially, has not only improved the availability of unit, and prolonged working life of blade.
Description of drawings
Fig. 1, be the utility model schematic appearance.
A-A sectional view among Fig. 2, Fig. 1.
Fig. 3, be the B-B sectional view among Fig. 2.
Embodiment
Shown in Fig. 1-2, a kind of structural damping device of wind wheel blade, mainly comprise the wind wheel blade of making by glass fiber reinforced plastics composite material 1, radially at least one structural damping device 2 that is complementary with blade shape is arranged along wind wheel blade 1 with tangential position device, this structural damping device 2 by tackiness agent with damping material and wind wheel blade is bonding is integral.
In the present embodiment, this structural damping device 2 has three, and wherein two radial positions along wind wheel blade 1 are installed with, and the chordwise location along wind wheel blade 1 is installed with.With the constraint of increase deformable blade, and absorb the energy that vibrates.
Referring to shown in Figure 3, this structural damping device 2 is included between glass fibre reinforced plastics and the damping material by resin binder the two bonding being integral, its concrete ordering is: be coated with first layer damping material 21 on the internal face 11 of first layer wind wheel blade 1, the second layer is a frp layer 12, be coated with second layer damping material 22 on it, be coated with the 3rd layer on the second layer damping material 22 and be frp layer 13, so that the outer surface of wind wheel blade 1 is more attractive in appearance.
Above-mentioned damping material is damping rubber, viscoelastic attitude damping rubber, and one of them material is hard, another material is softer, how to select and will select according to actual working environment.
This structural damping device 2 is in the vibration processes of blade, can increase the deformable blade constraint, absorb vibrational energy, also can in very wide operating frequency range, reduce or eliminate the oscillation phenomenon of blade effectively, therefore solve the vibration problem under the low temperature stalled condition effectively, improved the unit availability, prolonged working life of blade.
Claims (4)
1, a kind of structural damping device of wind wheel blade, mainly comprise: the wind wheel blade that glass fiber reinforced plastics composite material is made, it is characterized in that: radially at least one structural damping device that is complementary with blade shape is arranged along wind wheel blade with tangential position device, this structural damping device by tackiness agent with damping material and wind wheel blade is bonding is integral.
2, according to the structural damping device of the described wind wheel blade of claim 1, it is characterized in that: described structural damping device is integral the internal face that damping material is bonded in wind wheel blade by resin binder.
3, according to the structural damping device of the described wind wheel blade of claim 2, it is characterized in that: the order that described structural damping implement body is arranged is: be coated with the first layer damping material on the internal face of first layer wind wheel blade, the second layer is a frp layer, be coated with second layer damping material on it, be coated with the 3rd layer on the second layer damping material and be frp layer.
4, according to the structural damping device of one of the described wind wheel blade of claim 1-3, it is characterized in that: described damping material is damping rubber, viscoelastic attitude damping rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200962253U CN2737980Y (en) | 2004-09-30 | 2004-09-30 | Structural damper for wind wheel blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200962253U CN2737980Y (en) | 2004-09-30 | 2004-09-30 | Structural damper for wind wheel blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2737980Y true CN2737980Y (en) | 2005-11-02 |
Family
ID=35347890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200962253U Expired - Fee Related CN2737980Y (en) | 2004-09-30 | 2004-09-30 | Structural damper for wind wheel blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2737980Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555864A (en) * | 2008-03-17 | 2009-10-14 | 通用电气公司 | Blade having a damping element and method of fabricating same |
| CN102606414A (en) * | 2011-01-24 | 2012-07-25 | 中山市邦达实业有限公司 | Wind turbine blade with damping vibration attenuation structural layer and method for manufacturing wind turbine blade |
| CN103410684A (en) * | 2013-08-26 | 2013-11-27 | 温州大学 | Wind turbine blade vibration damping method and device |
| CN104912603A (en) * | 2015-04-03 | 2015-09-16 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Combined blade root |
| CN105257485A (en) * | 2015-10-23 | 2016-01-20 | 西安交通大学 | Wind turbine blade with vibration reduced through particle damping |
| CN105935795A (en) * | 2016-06-12 | 2016-09-14 | 哈尔滨理工大学 | Adjustable damping type vibration-attenuation and chatter-suppression device in milling process of thin-walled workpieces and vibration-attenuation method |
| CN109114159A (en) * | 2018-09-27 | 2019-01-01 | 兰州理工大学 | Current vortex vibration absorber and installation method suitable for wind electricity blade |
-
2004
- 2004-09-30 CN CNU2004200962253U patent/CN2737980Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555864A (en) * | 2008-03-17 | 2009-10-14 | 通用电气公司 | Blade having a damping element and method of fabricating same |
| CN102606414A (en) * | 2011-01-24 | 2012-07-25 | 中山市邦达实业有限公司 | Wind turbine blade with damping vibration attenuation structural layer and method for manufacturing wind turbine blade |
| CN102606414B (en) * | 2011-01-24 | 2015-05-27 | 广东邦达实业有限公司 | Wind turbine blade with damping vibration attenuation structural layer and method for manufacturing wind turbine blade |
| CN103410684A (en) * | 2013-08-26 | 2013-11-27 | 温州大学 | Wind turbine blade vibration damping method and device |
| CN104912603A (en) * | 2015-04-03 | 2015-09-16 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Combined blade root |
| CN105257485A (en) * | 2015-10-23 | 2016-01-20 | 西安交通大学 | Wind turbine blade with vibration reduced through particle damping |
| CN105935795A (en) * | 2016-06-12 | 2016-09-14 | 哈尔滨理工大学 | Adjustable damping type vibration-attenuation and chatter-suppression device in milling process of thin-walled workpieces and vibration-attenuation method |
| CN105935795B (en) * | 2016-06-12 | 2018-08-03 | 哈尔滨理工大学 | Adjustable damping formula vibration damping in thin-wall part milling process presses down quiver device and oscillation damping method |
| CN109114159A (en) * | 2018-09-27 | 2019-01-01 | 兰州理工大学 | Current vortex vibration absorber and installation method suitable for wind electricity blade |
| CN109114159B (en) * | 2018-09-27 | 2020-05-08 | 兰州理工大学 | Eddy current vibration damper suitable for wind power blade and mounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CNAC HUITENG WIND POWER EQUIPMENT CO., LTD. Free format text: FORMER NAME OR ADDRESS: CNAC (BAODING) HUI TENG WIND POWER EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 369, Pioneer Road, hi tech Zone, Hebei, Baoding: 071051 Patentee after: Zhong Hang Huiteng Wind Power Equipment Co., Ltd. Address before: No. 132, Bao Lu, national hi tech Industrial Development Zone, Hebei, Baoding: 071051 Patentee before: Zhong Hang (Baoding) Huiteng Windpower Equipment Co, Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051102 Termination date: 20120930 |