DK2112374T4 - System til detektering af brud - Google Patents
System til detektering af brud Download PDFInfo
- Publication number
- DK2112374T4 DK2112374T4 DK08007726.6T DK08007726T DK2112374T4 DK 2112374 T4 DK2112374 T4 DK 2112374T4 DK 08007726 T DK08007726 T DK 08007726T DK 2112374 T4 DK2112374 T4 DK 2112374T4
- Authority
- DK
- Denmark
- Prior art keywords
- light
- detection system
- fiber bundles
- light source
- transmission
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title claims description 53
- 239000000835 fiber Substances 0.000 claims description 88
- 230000005540 biological transmission Effects 0.000 claims description 48
- 239000013307 optical fiber Substances 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims 2
- 230000003287 optical effect Effects 0.000 description 43
- 239000002131 composite material Substances 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
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- 230000015556 catabolic process Effects 0.000 description 3
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- 238000011179 visual inspection Methods 0.000 description 3
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- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/08—Testing mechanical properties
- G01M11/083—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT]
- G01M11/086—Details about the embedment of the optical fiber within the DUT
-
- 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
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0016—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of aircraft wings or blades
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0091—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by using electromagnetic excitation or detection
-
- 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
- F05B2270/00—Control
- F05B2270/40—Type of control system
- F05B2270/404—Type of control system active, predictive, or anticipative
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Wind Motors (AREA)
Claims (13)
1. Bruddetekteringssystem til detektering afbrud i en belastet teknisk konstruktion (1), som omfatter en lyskilde (17), optiske fibre (6), som er ført igennem konstruktionen (1) og har diametre under 75 pm, og et middel (19) til at koble lyset af lyskilden (17) til de optiske fibre (6), hvor de optiske fibre (6) føres gennem konstruktionen (1) i form af fiberbundter (15), kendetegnet ved, at fiberbundter (15) er omsluttet i en gennemtrængelig slange (25) eller af en eller flere tråde (27), der er viklet omkring fiberbundterne.
2. Bruddetekteringssystem ifølge krav 1, kendetegnet ved, at fiberbundterne (15) er limet til ydersiden eller indersiden af konstruktion.
3. Bruddetekteringssystem ifølge krav 1, kendetegnet ved, at den tekniske konstruktion (1) omfatter en kappe (23), der er fremstillet af et fiberlaminat, og i hvilken fiberbundterne (15) er indlejret i laminatet.
4. Bruddetekteringssystem ifølge et af kravene 1 til 3, kendetegnet ved, at fiberbundterne (15) er forbundet med lysdetektorerne (21).
5. Bruddetekteringssystem ifølge krav 4, kendetegnet ved - en modulationsenhed (29), som er forbundet med lyskilden (17) til modulering af lyset, og - en tidsportenhed (32), som er forbundet med detektorerne (21) til modtagelse af detektorsignalerne.
6. Bruddetekteringssystem ifølge krav 4 eller krav 5, kendetegnet - ved, at lysdetektorerne (21) befinder sig ved enderne af fiberbundterne (15), som er over for enderne, hvor - lyset er koblet til fiberbundterne (15), og - i en transmissionskoefficientbestemmelsesenhed (37), som bestemmer og overvåger transmissionskoefficienterne af fiberbundterne (15).
7. Bruddetekteringssystem ifølge krav 6, kendetegnet ved en frekvensdetekteringsenhed (39), som er forbundet til transmissionskoefficientbestemmelsesenheden (37) til modtagelse af transmissionssignaler, der repræsenterer transmissionskoefficienterne af fiberbundterne (15), og som er udformet til at bestemme frekvenskomponenter i transmissionssignalerne.
8. Bruddetekteringssystem ifølge krav 4, kendetegnet - ved, at lyskilden (17) er en pulseret lyskilde, som udsender lysglimt i området under 500 ns, - ved, at detektorerne (21) befinder sig ved den samme ende af fiberbundterne (15) som lyskilden (17), og -ved, at der findes en tidsforsinkelsesbestemmelsesenhed (32), som bestemmer tidsforsinkelsen mellem afsendelsen afen impuls aflyskilden (17) og modtagelse af den respektive impuls afen detektor (21).
9. Bruddetekteringssystem ifølge et af de foregående krav, kendetegnet, ved at den tekniske konstruktion er en vindmøllerotorvinge (1).
10. Fremgangsmåde til detektering af brud i en teknisk konstruktion (1) ved anvendelse af et bruddetekteringssystem ifølge et af de foregående krav, hvor transmissionen eller refleksionen af lys, som udsendes i fiberbundterne (15), overvåges, og et brud detekteres ved en pludselig ændring af transmissionen og refleksionen.
11. Fremgangsmåde ifølge krav 10, hvor lysglimt udsendes i fiberbundterne (15), og en tidsforsinkelse af et reflekteret lysglimt i forhold til den udsendte impuls bestemmes.
12. Fremgangsmåde ifølge krav 10 eller 11, hvor der etableres en tidsrække af transmissionskoefficienter eller refleksionskoefficienter, og der udføres en Fourier-analyse af tidsrækkerne.
13. Fremgangsmåde ifølge krav 10 eller 11, hvor der etableres en tidsrække af transmissionskoefficienter eller refleksionskoefficienter, og forskellen mellem 10%-fraktilen og 90%-fraktilen af tidsrækkerne overvåges.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08007726.6A EP2112374B2 (en) | 2008-04-21 | 2008-04-21 | Crack detection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK2112374T3 DK2112374T3 (da) | 2016-02-15 |
| DK2112374T4 true DK2112374T4 (da) | 2019-01-28 |
Family
ID=40404137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK08007726.6T DK2112374T4 (da) | 2008-04-21 | 2008-04-21 | System til detektering af brud |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8149394B2 (da) |
| EP (1) | EP2112374B2 (da) |
| CN (1) | CN101571494B (da) |
| DK (1) | DK2112374T4 (da) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5288884B2 (ja) * | 2008-05-27 | 2013-09-11 | アズビル株式会社 | 蛍光温度センサ |
| DE102009009272B4 (de) * | 2009-02-17 | 2013-02-28 | Siemens Aktiengesellschaft | Qualitätsprüfung für Rotorblätter einer Windenergieanlage |
| US9109883B2 (en) * | 2009-05-29 | 2015-08-18 | The Board Of Trustees Of The University Of Illinois | High resolution large displacement/crack sensor |
| US8043048B2 (en) * | 2010-04-08 | 2011-10-25 | General Electric Company | Systems and methods for monitoring a structural health of a wind turbine |
| US8664585B2 (en) * | 2010-11-15 | 2014-03-04 | Siemens Energy, Inc. | Sensor apparatus for detecting and monitoring a crack propagating through a structure |
| US20120161446A1 (en) * | 2010-12-28 | 2012-06-28 | Vestas Wind Systems A/S | Global wind farm surveillance systems using fiber optic sensors |
| GB2488123A (en) * | 2011-02-15 | 2012-08-22 | Vestas Wind Sys As | System and method for detecting damage to a wind turbine blade |
| DE102011006635A1 (de) * | 2011-04-01 | 2012-10-04 | Aloys Wobben | Windenergieanlage |
| US8454311B2 (en) * | 2011-09-29 | 2013-06-04 | General Electric Company | Wind turbine blade edge monitoring system |
| WO2013066315A1 (en) * | 2011-11-01 | 2013-05-10 | Empire Technology Development Llc | Cable with optical fiber for prestressed concrete |
| US8505364B2 (en) * | 2011-11-04 | 2013-08-13 | General Electric Company | Systems and methods for use in monitoring operation of a rotating component |
| CN103163142A (zh) * | 2011-12-16 | 2013-06-19 | 罗井伦 | 光纤测量装置 |
| CN105102954A (zh) * | 2013-03-21 | 2015-11-25 | Osmos股份有限公司 | 用于通过采用光纤的监测设备监测转动元件的变形的方法、和配备有这种设备的风力涡轮机 |
| FR3010522B1 (fr) * | 2013-09-06 | 2017-04-28 | Airbus Operations Sas | Systeme de controle non destructif d'une piece en materiau composite et aeronef comprenant un tel systeme |
| CN103868546B (zh) * | 2013-12-18 | 2016-04-27 | 浙江吉利控股集团有限公司 | 电动汽车的电池壳体破损检测装置及控制方法 |
| DE102014204857A1 (de) * | 2014-03-17 | 2015-09-17 | Wobben Properties Gmbh | Windenergieanlagen-Rotorblatt und Heizeinheit für ein Windenergieanlagen-Rotorblatt |
| US11169050B1 (en) * | 2015-03-20 | 2021-11-09 | FREENT TECHNOLOGIES, Inc. | Multiple energic penetration and damage progression sensor improvements |
| WO2018103916A1 (en) * | 2016-12-05 | 2018-06-14 | Siemens Wind Power A/S | Determining a structural condition of a rotor blade of a wind turbine |
| US10739169B2 (en) | 2017-03-23 | 2020-08-11 | Ofs Fitel, Llc | Flat profile optical fiber cable for distributed sensing applications |
| CN106970390B (zh) * | 2017-04-17 | 2020-10-02 | 三峡大学 | 一种测定地下可伸缩中空机构伸缩位移的方法及装置 |
| CN106949840B (zh) * | 2017-04-17 | 2020-05-12 | 三峡大学 | 一种裂缝监测装置及方法 |
| EP3601783B1 (en) | 2017-05-09 | 2022-04-06 | Siemens Gamesa Renewable Energy A/S | Wind turbine rotor blade with embedded sensors |
| WO2019108905A1 (en) * | 2017-11-30 | 2019-06-06 | University Of Kansas | Fatigue crack detection using feature tracking |
| CN108425808B (zh) * | 2018-03-08 | 2020-03-17 | 江苏金风科技有限公司 | 用于风力发电机组叶片孔隙检测的方法及系统 |
| FR3081993B1 (fr) * | 2018-06-04 | 2020-12-04 | Conseil & Technique | Procede d'avertissement d'un risque de rupture ou de deformation d'une piece en materiau composite, et piece composite obtenue |
| EP3803315A1 (fr) | 2018-06-04 | 2021-04-14 | Conseil et Technique | Procédé d'avertissement d'un risque de rupture ou de déformation d'une pièce en matériau composite, et pièce obtenue |
| CN108802053A (zh) * | 2018-08-13 | 2018-11-13 | 安徽中源环保科技有限公司 | 一种可自动检测隔音板损伤的装置 |
| CN113614504B (zh) * | 2019-01-28 | 2024-10-11 | 聚四氟乙烯工程股份公司 | 预测性维护的方法和易损件 |
| CN111288912B (zh) * | 2020-03-24 | 2021-07-30 | 北京航空航天大学 | 一种用于机载分布式pos的光纤光栅形变测量方法 |
| CN116398379B (zh) * | 2023-04-18 | 2024-05-14 | 中国长江三峡集团有限公司 | 基于分布式光纤传感的风电机组叶片状态监测装置及方法 |
Family Cites Families (16)
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| DE3111858A1 (de) | 1981-03-26 | 1982-10-14 | Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen | Messanordnung zum feststellen von rissen |
| EP0150268B1 (de) | 1982-02-25 | 1989-10-04 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Messanordnung zum Feststellen von Rissen |
| JPS59102105A (ja) | 1982-12-03 | 1984-06-13 | Toshiba Corp | 電力送電線の断線距離検出装置 |
| GB8322485D0 (en) | 1983-08-20 | 1983-09-21 | Nmi Ltd | Crack monitor systems |
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| FR2556833B1 (fr) | 1983-12-20 | 1986-04-11 | Westland Plc | Appareil pour detecter l'apparition de fissures ou de fractures dans des elements structurels et des composants mecaniques |
| DE3447122A1 (de) | 1984-12-22 | 1986-06-26 | Messerschmitt-Bölkow-Blohm GmbH, 2800 Bremen | Messanordnung zum feststellen von rissen in prueflingen |
| DE4018379A1 (de) | 1990-06-08 | 1991-12-12 | Rainer Dr Casdorff | Verfahren und anordnung zur ermittlung der tatsaechlichen optischen weglaenge von licht in einem lichtleiter |
| US5389789A (en) | 1992-05-20 | 1995-02-14 | Union Camp Corporation | Portable edge crack detector for detecting size and shape of a crack and a portable edge detector |
| US5374821A (en) | 1993-06-30 | 1994-12-20 | Martin Marietta Energy Systems, Inc. | Elastomeric optical fiber sensors and method for detecting and measuring events occurring in elastic materials |
| JP2002371139A (ja) † | 2001-06-14 | 2002-12-26 | Yuichi Sugiyama | Ｆｒｐ用繊維製補強材およびこれを用いたｆｒｐ成形体 |
| KR20040073461A (ko) * | 2001-12-08 | 2004-08-19 | 우벤 알로이즈 | 경보등을 구비한 풍력 설비의 로터 블레이드 |
| DE102005017054B4 (de) | 2004-07-28 | 2012-01-05 | Igus - Innovative Technische Systeme Gmbh | Verfahren und Vorrichtung zur Überwachung des Zustandes von Rotorblättern an Windkraftanlagen |
| CA2645108C (en) | 2006-03-16 | 2014-03-11 | Vestas Wind Systems A/S | A method and control system for reducing the fatigue loads in the components of a wind turbine subjected to asymmetrical loading of the rotor plane |
| DE102006023642A1 (de) * | 2006-05-18 | 2007-11-22 | Daubner & Stommel Gbr Bau-Werk-Planung | Windenergieanlage und Rotorblatt für eine Windenergieanlage |
| GB2440953B (en) | 2006-08-18 | 2009-09-30 | Insensys Ltd | Wind turbines |
-
2008
- 2008-04-21 DK DK08007726.6T patent/DK2112374T4/da active
- 2008-04-21 EP EP08007726.6A patent/EP2112374B2/en active Active
-
2009
- 2009-04-21 CN CN2009101378100A patent/CN101571494B/zh active Active
- 2009-04-21 US US12/386,650 patent/US8149394B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20090262331A1 (en) | 2009-10-22 |
| EP2112374B1 (en) | 2015-11-18 |
| CN101571494B (zh) | 2012-12-05 |
| EP2112374A1 (en) | 2009-10-28 |
| DK2112374T3 (da) | 2016-02-15 |
| CN101571494A (zh) | 2009-11-04 |
| EP2112374B2 (en) | 2018-10-17 |
| US8149394B2 (en) | 2012-04-03 |
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