GB201210960D0 - Improvements in or relating to composite structures - Google Patents

Improvements in or relating to composite structures

Info

Publication number
GB201210960D0
GB201210960D0 GBGB1210960.9A GB201210960A GB201210960D0 GB 201210960 D0 GB201210960 D0 GB 201210960D0 GB 201210960 A GB201210960 A GB 201210960A GB 201210960 D0 GB201210960 D0 GB 201210960D0
Authority
GB
United Kingdom
Prior art keywords
radar
outer shell
omega
cavity
reflective
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.)
Withdrawn
Application number
GBGB1210960.9A
Other versions
GB2503260A (en
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.)
Vestas Wind Systems AS
Vereniging voor Christelijik Hoger Onderwijs Wetenschappelijk Onderzoek en Patientenzorg
Original Assignee
Vestas Wind Systems AS
Vereniging voor Christelijik Hoger Onderwijs Wetenschappelijk Onderzoek en Patientenzorg
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 Vestas Wind Systems AS, Vereniging voor Christelijik Hoger Onderwijs Wetenschappelijk Onderzoek en Patientenzorg filed Critical Vestas Wind Systems AS
Priority to GB1210960.9A priority Critical patent/GB2503260A/en
Publication of GB201210960D0 publication Critical patent/GB201210960D0/en
Priority to PCT/GB2013/051589 priority patent/WO2013190288A1/en
Publication of GB2503260A publication Critical patent/GB2503260A/en
Withdrawn legal-status Critical Current

Links

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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/30—Lightning protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
    • F03D9/257—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor the wind motor being part of a wind farm
    • 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
    • F05B2260/99—Radar absorption
    • 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

Abstract

Wind turbine component 50 has an outer shell 11 defining an internal cavity 37, where at least a part of the outer shell is adapted to transmit incident radar signals 52a into the cavity and where one or more reflective components 15 inside the cavity are adapted to absorb radar signals. Preferably the outer shell has a frequency selective surface embedded within it. Radar absorbing material, such as a radar absorbing panel 54, may be applied to the reflective components and the reflective component may be a metallic part of a lightning protection system. Preferably the reflective component is a cable 14 attached to a surface and the panel is omega shaped in cross section such that the round part of the omega profile covering the cable and legs of the omega being bonded to the surface. A method of reducing the radar cross section is also claimed.
GB1210960.9A 2012-06-21 2012-06-21 Wind turbine component with radar transmitting and absorbing parts Withdrawn GB2503260A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1210960.9A GB2503260A (en) 2012-06-21 2012-06-21 Wind turbine component with radar transmitting and absorbing parts
PCT/GB2013/051589 WO2013190288A1 (en) 2012-06-21 2013-06-19 A wind turbine component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1210960.9A GB2503260A (en) 2012-06-21 2012-06-21 Wind turbine component with radar transmitting and absorbing parts

Publications (2)

Publication Number Publication Date
GB201210960D0 true GB201210960D0 (en) 2012-08-01
GB2503260A GB2503260A (en) 2013-12-25

Family

ID=46641245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1210960.9A Withdrawn GB2503260A (en) 2012-06-21 2012-06-21 Wind turbine component with radar transmitting and absorbing parts

Country Status (2)

Country Link
GB (1) GB2503260A (en)
WO (1) WO2013190288A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3023420B1 (en) * 2014-07-03 2017-12-08 Ineo Defense METHOD FOR PRODUCING A COMPOSITE WALL AND ASSOCIATED COMPOSITE WALL
US10316827B2 (en) 2014-11-11 2019-06-11 General Electric Company Conduit assembly for a lightning protection cable of a wind turbine rotor blade
ES2613578B1 (en) * 2015-11-24 2018-03-12 Gamesa Innovation & Technology, S.L. Wind turbine blade comprising a lightning rod system equipped with radar absorbent material
DE102018100302A1 (en) * 2018-01-09 2019-07-11 Wobben Properties Gmbh Wind turbine rotor blade
CN109633286B (en) * 2018-12-03 2021-08-03 成都飞机工业（集团）有限责任公司 Carrier with electromagnetic test characteristic

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0806666D0 (en) * 2008-04-11 2008-05-14 Bond Philip C Windfarm radar clutter mitigation
GB0907009D0 (en) * 2009-04-23 2009-06-03 Vestas Wind Sys As Improvements in or relating to composite structures
GB2484941A (en) * 2010-10-26 2012-05-02 Vestas Wind Sys As Material with radar absorbing circuit analogue elements for surface application to a wind turbine component
FR2968729B1 (en) * 2010-12-08 2013-01-04 Ineo Defense IMPROVED FURTIVE WIND-EOLIAN BLADE AND WINDMILL WITH SUCH A BLADE

Also Published As

Publication number Publication date
GB2503260A (en) 2013-12-25
WO2013190288A1 (en) 2013-12-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)