CN1936320A - 具有降低噪音的叶片式转子的风轮机 - Google Patents

具有降低噪音的叶片式转子的风轮机 Download PDF

Info

Publication number
CN1936320A
CN1936320A CNA2006101397184A CN200610139718A CN1936320A CN 1936320 A CN1936320 A CN 1936320A CN A2006101397184 A CNA2006101397184 A CN A2006101397184A CN 200610139718 A CN200610139718 A CN 200610139718A CN 1936320 A CN1936320 A CN 1936320A
Authority
CN
China
Prior art keywords
bristle
wind turbine
blade
pliability
assembly
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.)
Pending
Application number
CNA2006101397184A
Other languages
English (en)
Inventor
何塞·伊格纳西奥·略伦特·冈萨雷斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Gamesa Renewable Energy Innovation and Technology SL
Gamesa Eolica SA
Original Assignee
Gamesa Eolica SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gamesa Eolica SA filed Critical Gamesa Eolica SA
Publication of CN1936320A publication Critical patent/CN1936320A/zh
Pending legal-status Critical Current

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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/301—Cross-section characteristics
    • 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
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

本发明提供一种具有叶片式转子(11)的风轮机。所述转子通过包括柔韧性刷毛(23)组件(21)来降低噪音，所述柔韧性刷毛对准排成至少一排，柔韧性刷毛组件位于叶片符合空气动力学轮廓的拖尾边缘(15)上并凸伸出拖尾边缘，从而使得在空气流动方向上，每一叶片(11)的轮廓的两侧的压力波动达到平衡。

Description

具有降低噪音的叶片式转子的风轮机
技术领域
本发明涉及一种具有叶片式转子的风轮机，所述叶片式转子具有位于其拖尾边缘上的元件，该元件降低在风力转动转子时所产生的空气动力噪音。
背景技术
风轮机产生大量的噪音。其叶片通过界面层与叶片拖尾边缘的互相作用而产生空气动力噪音。
在现有技术中，所提出的降低噪音的手段为在转子叶片的拖尾边缘上设置齿形元件。
欧洲专利第EP0652367号提出了用于转子叶片的不同类型的齿形边缘。
欧洲专利第EP1314885号提出了具有位于拖尾边缘上的齿形片的转子叶片。
欧洲专利第EP1338793号提出了具有齿形边缘的叶片，其中变化齿体的长度及变化所述齿体之间沿着叶片的距离。
这些方案具有缺点，即齿体为刚性元件，从而当其未与气流对准时，在频率提高的情况下将出现产生高噪音指数的情形。
本发明提供一种不同的降低风轮机所产生的噪音的方式。
发明内容
本发明目的在于降低风轮机中的噪音，其中所述噪音由于界面层与风轮机转子叶片的拖尾边缘的互相作用而产生，而所述风轮机则包括叶片式转子，该叶片式转子通过叶片驱动一发电机，其中所述叶片具有空气动力学轮廓、具有一前导边缘和一拖尾边缘。
与频率相关的噪音频谱显示出对风轮机噪音的产生最为重要的频率在500-1000Hz范围之间。
为了实现该目的，本发明在叶片中的至少一片上设置一柔韧性刷毛组件，所述柔韧性刷毛对准排成至少一排并凸伸出拖尾边缘。
优选为以刷子形式布置的该刷毛组件降低了由叶片的拖尾边缘所造成的不连续性，该不连续性会由于压力波动的原因而产生噪音，其中在经过拖尾边缘时，界面层的湍流造成所述压力波动的产生。
由于其柔韧性，这些刷毛使得压力达到平衡，因此消除了拖尾边缘的声学放射效应。
使用柔韧性刷毛技术而非齿形元件的一个重要优点在于，其可相对于叶片的拖尾边缘的气流进行自动定向。这意味着在宽泛的气流条件范围中，所述柔韧性刷毛技术均有效。
因此，该技术提供了用于风轮机的降低噪音的元件，所述元件简单、低成本、易于组装，并意味着并未使重量明显增加。
参看具体实施方式及附图部分后，本发明的其他特征和优点将变得显而易见。
附图说明
图1所示为具有依据本发明的柔韧性刷毛组件的转子叶片的平面图；
图2a和2b所示为依据本发明的叶片的横断部分的示意图，其中刷毛组件分别与上拖尾边缘和下拖尾边缘对准；
图3为以刷子形式固定到支撑件上的刷毛组件的示意图，其中所述刷毛组件可应用到依据本发明的叶片的拖尾边缘上；
图4为如图3所示的刷子固定到依据本发明的叶片的拖尾边缘的下表面上的示意图。
具体实施方式
依据本发明，风轮机包括一转子，该转子具有至少一片叶片11，该叶片11具有一前导边缘13和一拖尾边缘15，该拖尾边缘15包括柔韧性刷毛23组件21，所述柔韧性刷毛23优选为由聚合材料制成，具体地，由聚丙烯(propylene PP)制成。
刷毛组件21安置在拖尾边缘15，位于叶片11的端部并达到尖部17，所述刷毛组件21所沿的长度L1优选为小于叶片总长度的40％，原因在于此处是产生大部分空气动力噪音的区域。
优选地，组件21的刷毛23布置成在纵长方向上与拖尾边缘15形成一直角，如图1所示。在横向方向上，可使刷毛23与拖尾边缘15的上表面或下表面对准，如图2a和2b所分别显示。
组件21可由按刷子形式固定到支撑件33上的刷毛23的刷毛体(blocks)31组成。在一优选的实施方式中，该支撑件由两个片件35、37构成，其中所述片件35、37使用一粘合件39，以便于安置在拖尾边缘上。该固定方式自身可结合上一平滑的片件41、以避免空气动力学轮廓的任何不连续性。
尽管可想象得到在叶片11的特定区域上采用不同的刷毛长度的可能性，但是优选地，应当根据叶片的半径和弦长而使用长度不变的刷毛。对于24米的叶片，经估算适宜的长度L2在8cm左右。
组件21由对准排成至少一排的刷毛23组成。优选地，刷毛23具有直径在0.4到0.5mm之间的圆形截面。这些刷毛之间的间隔应当达到最小可能值。在这一点上，组件21在尺寸定位方面的关键要素在于，对于依据柔韧性要求而预先固定的刷毛厚度来说，组件21中每一表面单元中的数量使得在气流F方向上、两侧的压力波动达到平衡。
根据申请人所进行的测试，在风轮机的叶片11上应用具有刷毛23的组件21使噪音降低大概10db。
可对上述实施方式进行各种修改，其中所述修改包含在由权利要求所限定的范围之内。

Claims (15)

1、一种风轮机，包括驱动发电机的叶片式转子，所述叶片式转子具有符合空气动力学轮廓的叶片(11)，所述叶片(11)具有一前导边缘(13)和一拖尾边缘(15)，其特征在于，所述叶片(11)中的至少一个具有一柔韧性刷毛(23)组件(21)，所述柔韧性刷毛对准排成至少一排并凸伸出拖尾边缘(15)，以降低在转子移动期间、与风互相作用时所产生的噪音。
2、根据权利要求1所述的风轮机，其特征在于，所述柔韧性刷毛(23)与叶片(11)的边缘在纵长方向上形成90度的角度。
3、根据权利要求1或2所述的风轮机，其特征在于，所述柔韧性刷毛(23)组件(21)沿着整个叶片(11)布置。
4、根据权利要求1或2所述的风轮机，其特征在于，所述柔韧性刷毛(23)组件(21)沿着叶片(11)的一部分布置，该布置长度L1小于叶片总半径的40％，并到达尖部(17)。
5、根据权利要求1-4中的任一项所述的风轮机，其特征在于，所述柔韧性刷毛(23)组件(21)与拖尾边缘(15)的上表面(27)对准。
6、根据权利要求1-4中的任一项所述的风轮机，其特征在于，所述柔韧性刷毛(23)组件(21)与拖尾边缘(15)的下表面(27)对准。
7、根据权利要求1-6中的任一项所述的风轮机，其特征在于，所述柔韧性刷毛(23)组件(21)通过一支撑件(33)以刷子(31)的形式布置，其中所述刷毛(23)固定到所述支撑件(33)上。
8、根据权利要求7所述的风轮机，其特征在于，所述支撑件(33)包括两个片件(35、37)和一用于固定到叶片(11)上的粘合件(39)。
9、根据权利要求1-8中的任一项所述的风轮机，其特征在于，对于确定的刷毛(23)厚度，组件(21)的每一表面单元中的数量使得在气流(F)方向上、两侧的压力波动达到平衡。
10、根据权利要求9所述的风轮机，其特征在于，所述柔韧性刷毛(23)具有直径在0.4到0.5mm之间的圆形截面。
11、根据权利要求1-10中的任一项所述的风轮机，其特征在于，所述柔韧性刷毛(23)的长度(L2)沿着叶片(11)不变。
12、根据权利要求11所述的风轮机，其特征在于，在半径大于或等于24米的叶片上，所述柔韧性刷毛(23)的长度(L2)大于或等于8厘米。
13、根据权利要求1-10中的任一项所述的风轮机，其特征在于，所述柔韧性刷毛(23)的长度(L2)沿着叶片(11)可变。
14、根据权利要求1-13中的任一项所述的风轮机，其特征在于，所述柔韧性刷毛(23)由聚合材料制成。
15、根据权利要求14所述的风轮机，其特征在于，所述柔韧性刷毛(23)由聚丙烯(PP)制成。
CNA2006101397184A 2005-09-22 2006-09-22 具有降低噪音的叶片式转子的风轮机 Pending CN1936320A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200502304 2005-09-22
ES200502304A ES2318925B1 (es) 2005-09-22 2005-09-22 Aerogenerador con un rotor de palas que reduce el ruido.

Publications (1)

Publication Number Publication Date
CN1936320A true CN1936320A (zh) 2007-03-28

Family

ID=37311891

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2006101397184A Pending CN1936320A (zh) 2005-09-22 2006-09-22 具有降低噪音的叶片式转子的风轮机

Country Status (5)

Country Link
US (1) US20070077150A1 (zh)
EP (1) EP1775464A2 (zh)
CN (1) CN1936320A (zh)
ES (1) ES2318925B1 (zh)
MX (1) MXPA06010806A (zh)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101644229A (zh) * 2008-07-30 2010-02-10 通用电气公司 风力涡轮机的叶片尖端形状
CN102465827A (zh) * 2010-11-10 2012-05-23 通用电气公司 用于风力涡轮机转子叶片的降噪装置
CN102562436A (zh) * 2010-12-16 2012-07-11 通用电气公司 用于风力机中的转子叶片的降噪器
CN101555863B (zh) * 2008-04-11 2012-12-26 台达电子工业股份有限公司 风力发电机及其叶轮
CN102966487A (zh) * 2012-11-28 2013-03-13 苏州源源机械设备有限公司 水平轴降噪风力发电机风叶
CN103026057A (zh) * 2010-08-10 2013-04-03 西门子公司 转子叶片元件和用于提高风力涡轮机转子叶片效率的方法
CN103670909A (zh) * 2012-09-12 2014-03-26 西门子公司 用于风力涡轮机叶片的负荷和噪声缓解系统
CN104097770A (zh) * 2014-08-03 2014-10-15 佛山市神风航空科技有限公司 一种直升机主转翼用翼片
CN106460788A (zh) * 2014-06-18 2017-02-22 西门子公司 用于风力涡轮机叶片的降噪器
CN113086169A (zh) * 2021-03-30 2021-07-09 吉林大学 一种减阻降噪的仿生螺旋桨及其制备方法

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080166241A1 (en) * 2007-01-04 2008-07-10 Stefan Herr Wind turbine blade brush
US7918653B2 (en) * 2007-02-07 2011-04-05 General Electric Company Rotor blade trailing edge assemby and method of use
EP2031241A1 (en) * 2007-08-29 2009-03-04 Lm Glasfiber A/S Blade for a rotor of a wind turbine provided with barrier generating means
GB2470589A (en) * 2009-05-29 2010-12-01 Vestas Wind Sys As Branching spar wind turbine blade
US8083488B2 (en) * 2010-08-23 2011-12-27 General Electric Company Blade extension for rotor blade in wind turbine
US20110268557A1 (en) * 2010-09-29 2011-11-03 General Electric Company System and method for attenuating the noise of airfoils
US7976276B2 (en) 2010-11-04 2011-07-12 General Electric Company Noise reducer for rotor blade in wind turbine
US8523515B2 (en) * 2010-11-15 2013-09-03 General Electric Company Noise reducer for rotor blade in wind turbine
EP2508750B1 (en) * 2011-04-04 2015-06-17 Siemens Aktiengesellschaft Method of optimising a wind park construction
US8414261B2 (en) 2011-05-31 2013-04-09 General Electric Company Noise reducer for rotor blade in wind turbine
US8834127B2 (en) 2011-09-09 2014-09-16 General Electric Company Extension for rotor blade in wind turbine
US8834117B2 (en) 2011-09-09 2014-09-16 General Electric Company Integrated lightning receptor system and trailing edge noise reducer for a wind turbine rotor blade
EP2570656B1 (de) 2011-09-19 2016-05-04 Nordex Energy GmbH Windenergieanlagenrotorblatt mit einer dicken Profilhinterkante
US8506250B2 (en) 2011-10-19 2013-08-13 General Electric Company Wind turbine rotor blade with trailing edge extension and method of attachment
US9341158B2 (en) * 2011-12-08 2016-05-17 Inventus Holdings, Llc Quiet wind turbine blade
US8430638B2 (en) * 2011-12-19 2013-04-30 General Electric Company Noise reducer for rotor blade in wind turbine
US20130164141A1 (en) * 2011-12-22 2013-06-27 General Electric Company Blade with semi-rigid trailing edge
US9458821B2 (en) 2012-09-11 2016-10-04 General Electric Company Attachment system for a wind turbine rotor blade accessory
US9297357B2 (en) 2013-04-04 2016-03-29 General Electric Company Blade insert for a wind turbine rotor blade
US9556849B2 (en) 2013-05-02 2017-01-31 General Electric Company Attachment system and method for wind turbine vortex generators
US9506452B2 (en) 2013-08-28 2016-11-29 General Electric Company Method for installing a shear web insert within a segmented rotor blade assembly
US20150098821A1 (en) 2013-10-08 2015-04-09 Edward A. Mayda Reverse flow load mitigation device for a wind turbine blade
US9638164B2 (en) 2013-10-31 2017-05-02 General Electric Company Chord extenders for a wind turbine rotor blade assembly
US9494134B2 (en) 2013-11-20 2016-11-15 General Electric Company Noise reducing extension plate for rotor blade in wind turbine
US10180125B2 (en) 2015-04-20 2019-01-15 General Electric Company Airflow configuration for a wind turbine rotor blade
US9869295B2 (en) 2015-05-07 2018-01-16 General Electric Company Attachment method to install components, such as tip extensions and winglets, to a wind turbine blade, as well as the wind turbine blade and component
US9869297B2 (en) 2015-05-07 2018-01-16 General Electric Company Attachment method and system to install components, such as vortex generators, to a wind turbine blade
US9869296B2 (en) 2015-05-07 2018-01-16 General Electric Company Attachment method and system to install components, such as tip extensions and winglets, to a wind turbine blade
DK3096003T3 (da) 2015-05-21 2021-05-10 Siemens Gamesa Renewable Energy As Rotorvinge med takker til en vindmølle
US20180216600A1 (en) * 2015-09-10 2018-08-02 Siemens Aktiengesellschaft Noise Reducing Fence for a Wind Turbine Blade
US10100805B2 (en) 2015-10-12 2018-10-16 General Electric Compant Tip extension assembly for a wind turbine rotor blade
EP3181895A1 (en) * 2015-12-17 2017-06-21 LM WP Patent Holding A/S Splitter plate arrangement for a serrated wind turbine blade
EP3747764B1 (en) * 2015-12-18 2022-09-28 Amazon Technologies, Inc. Propeller blade treatments for sound control
US20170241430A1 (en) * 2016-02-19 2017-08-24 Chaun-Choung Technology Corp. Combined fan and cooling device using the same
US10400744B2 (en) 2016-04-28 2019-09-03 General Electric Company Wind turbine blade with noise reducing micro boundary layer energizers
US10487796B2 (en) 2016-10-13 2019-11-26 General Electric Company Attachment methods for surface features of wind turbine rotor blades
US10443579B2 (en) 2016-11-15 2019-10-15 General Electric Company Tip extensions for wind turbine rotor blades and methods of installing same
EP3348825B1 (en) * 2017-01-12 2023-12-13 LM Wind Power A/S A wind turbine blade comprising a trailing edge noise reducing device
US10465652B2 (en) 2017-01-26 2019-11-05 General Electric Company Vortex generators for wind turbine rotor blades having noise-reducing features
US11098691B2 (en) 2017-02-03 2021-08-24 General Electric Company Methods for manufacturing wind turbine rotor blades and components thereof
US10830206B2 (en) 2017-02-03 2020-11-10 General Electric Company Methods for manufacturing wind turbine rotor blades and components thereof
US10865769B2 (en) 2017-11-21 2020-12-15 General Electric Company Methods for manufacturing wind turbine rotor blade panels having printed grid structures
US11668275B2 (en) 2017-11-21 2023-06-06 General Electric Company Methods for manufacturing an outer skin of a rotor blade
US11248582B2 (en) 2017-11-21 2022-02-15 General Electric Company Multiple material combinations for printed reinforcement structures of rotor blades
US11040503B2 (en) 2017-11-21 2021-06-22 General Electric Company Apparatus for manufacturing composite airfoils
US10913216B2 (en) 2017-11-21 2021-02-09 General Electric Company Methods for manufacturing wind turbine rotor blade panels having printed grid structures
US10920745B2 (en) 2017-11-21 2021-02-16 General Electric Company Wind turbine rotor blade components and methods of manufacturing the same
US10773464B2 (en) 2017-11-21 2020-09-15 General Electric Company Method for manufacturing composite airfoils
US10821652B2 (en) 2017-11-21 2020-11-03 General Electric Company Vacuum forming mold assembly and method for creating a vacuum forming mold assembly
US11390013B2 (en) 2017-11-21 2022-07-19 General Electric Company Vacuum forming mold assembly and associated methods
US11035339B2 (en) 2018-03-26 2021-06-15 General Electric Company Shear web assembly interconnected with additive manufactured components
US10821696B2 (en) 2018-03-26 2020-11-03 General Electric Company Methods for manufacturing flatback airfoils for wind turbine rotor blades
US10767623B2 (en) 2018-04-13 2020-09-08 General Electric Company Serrated noise reducer for a wind turbine rotor blade
EP3587799A1 (en) * 2018-06-27 2020-01-01 Siemens Gamesa Renewable Energy A/S Aerodynamic structure
PT3587798T (pt) * 2018-06-27 2020-11-23 Siemens Gamesa Renewable Energy As Estrutura aerodinâmica
US10746157B2 (en) 2018-08-31 2020-08-18 General Electric Company Noise reducer for a wind turbine rotor blade having a cambered serration

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681426A (en) * 1986-05-19 1987-07-21 Xerox Corporation Brush end seals for blade cleaner housing
US5088665A (en) * 1989-10-31 1992-02-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Serrated trailing edges for improving lift and drag characteristics of lifting surfaces
NL9301910A (nl) * 1993-11-04 1995-06-01 Stork Prod Eng Windturbine.
DE19580147B3 (de) * 1994-01-12 2012-11-29 Lm Glasfiber A/S Windmühle
US6808179B1 (en) * 1998-07-31 2004-10-26 Concepts Eti, Inc. Turbomachinery seal
DE10157849A1 (de) * 2001-11-24 2003-06-12 Airbus Gmbh Anordnung zur Minderung des aerodynamischen Lärms an einem Vorflügel eines Verkehrsflugzeuges
US7059833B2 (en) * 2001-11-26 2006-06-13 Bonus Energy A/S Method for improvement of the efficiency of a wind turbine rotor
EP1338793A3 (en) * 2002-02-22 2010-09-01 Mitsubishi Heavy Industries, Ltd. Serrated wind turbine blade trailing edge
US6996885B2 (en) * 2002-03-20 2006-02-14 United Technologies Corporation Method of making bristle arrangement for brush seal
DE10340978B4 (de) * 2003-09-05 2008-09-18 Moosdorf, Reinhard W. Kunstfaserelement für Rotorblätter

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101555863B (zh) * 2008-04-11 2012-12-26 台达电子工业股份有限公司 风力发电机及其叶轮
CN101644229A (zh) * 2008-07-30 2010-02-10 通用电气公司 风力涡轮机的叶片尖端形状
CN101644229B (zh) * 2008-07-30 2013-07-31 通用电气公司 风力涡轮机的叶片尖端形状
US9366222B2 (en) 2010-08-10 2016-06-14 Siemens Aktiengesellschaft Rotor blade element and method for improving the efficiency of a wind turbine rotor blade
CN103026057A (zh) * 2010-08-10 2013-04-03 西门子公司 转子叶片元件和用于提高风力涡轮机转子叶片效率的方法
CN103026057B (zh) * 2010-08-10 2016-07-06 西门子公司 转子叶片元件和用于提高风力涡轮机转子叶片效率的方法
CN102465827A (zh) * 2010-11-10 2012-05-23 通用电气公司 用于风力涡轮机转子叶片的降噪装置
CN102465827B (zh) * 2010-11-10 2015-11-25 通用电气公司 用于风力涡轮机转子叶片的降噪装置
CN102562436A (zh) * 2010-12-16 2012-07-11 通用电气公司 用于风力机中的转子叶片的降噪器
CN102562436B (zh) * 2010-12-16 2015-12-09 通用电气公司 用于风力机中的转子叶片的降噪器
CN103670909A (zh) * 2012-09-12 2014-03-26 西门子公司 用于风力涡轮机叶片的负荷和噪声缓解系统
CN102966487A (zh) * 2012-11-28 2013-03-13 苏州源源机械设备有限公司 水平轴降噪风力发电机风叶
CN106460788A (zh) * 2014-06-18 2017-02-22 西门子公司 用于风力涡轮机叶片的降噪器
US10451033B2 (en) 2014-06-18 2019-10-22 Siemens Gamesa Renewable Energy A/S Noise reducer for a wind turbine blade
CN104097770A (zh) * 2014-08-03 2014-10-15 佛山市神风航空科技有限公司 一种直升机主转翼用翼片
CN113086169A (zh) * 2021-03-30 2021-07-09 吉林大学 一种减阻降噪的仿生螺旋桨及其制备方法
CN113086169B (zh) * 2021-03-30 2022-07-12 吉林大学 一种减阻降噪的仿生螺旋桨及其制备方法

Also Published As

Publication number Publication date
ES2318925A1 (es) 2009-05-01
US20070077150A1 (en) 2007-04-05
MXPA06010806A (es) 2007-03-30
ES2318925B1 (es) 2010-02-11
EP1775464A2 (en) 2007-04-18

Similar Documents

Publication Publication Date Title
CN1936320A (zh) 具有降低噪音的叶片式转子的风轮机
ES2855106T3 (es) Aerogenerador con pala delgada
US20190170114A1 (en) Wind turbine noise reduction with acoustically absorbent serrations
CA2986281C (en) Rotor blade with serrations
US7108485B2 (en) Reduction in the noise produced by a rotor blade of a wind turbine
EP2708736A2 (en) Load and noise mitigation system for wind turbine blades
EP2778392B1 (en) A rotor blade for a wind turbine
CA2826409C (en) Attachment system for a wind turbine rotor blade accessory
JP5331117B2 (ja) 風車翼およびこれを用いる風力発電装置
ES2856894T3 (es) Pala de turbina eólica con hombro estrecho y perfiles aerodinámicos relativamente gruesos
ES2772841T3 (es) Una cuña de perfil para conexión de una pieza de extensor de aerocarcasa
CN108603488B (zh) 用于风力涡轮机叶片的锯齿状后缘板
EP2806156A1 (en) Airfoil trailing edge apparatus fo noise reduction
US20220195980A1 (en) Noise Reduction Surface Treatment for Airfoil
US20080166241A1 (en) Wind turbine blade brush
US20070201982A1 (en) Ventilator and ventilator blade
CN104454379A (zh) 减少风轮机转子叶片的噪声的布置
CN102465827A (zh) 用于风力涡轮机转子叶片的降噪装置
EP2028366A3 (en) Wind turbine blade with anti-noise devices
CN110139981A (zh) 包括后缘降噪装置的风力涡轮机叶片
ES2955331T3 (es) Pala de rotor de un aerogenerador y aerogenerador
EP3696402A1 (en) Noise reducer for a wind turbine rotor blade
Barone Survey of techniques for reduction of wind turbine blade trailing edge noise.
US8262363B2 (en) Blade having a damping element and method of fabricating same
EP3786444A1 (en) Wind turbine blade apparatus and wind turbine blade attachment member

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20070328