Damping of Offshore Wind Turbine Tower Vibrations by a Stroke Amplifying Brace

Mark Laier Brodersen, Jan Becker Høgsberg

    Research output: Contribution to journalConference articleResearchpeer-review

    2106 Downloads (Pure)

    Abstract

    The potential of installing dampers inside the tower of an offshore wind turbine is investigated through simulations. Dampers are installed at the bottom to act on the curvature of the tower, and it is shown that dampers installed in suitable braces have the potential to increase the critical damping ratio of the two lowest tower modes by 1 percent. By using a toggle-brace system, damper stroke is increased, while the damper force is reduced. Finally, by installing the dampers in a symmetric configuration, tuning for maximum damping is approximately independent of the orientation of the rotor, thereby making this installation of dampers feasible.
    Original languageEnglish
    JournalEnergy Procedia
    Volume53
    Issue numberC
    Pages (from-to)258-267
    Number of pages10
    ISSN1876-6102
    DOIs
    Publication statusPublished - 2014
    EventEERA DeepWind 2014 - 11th Deep Sea Offshore Wind R&D Conference - Radisson Blu Royal Garden Hotel, Trondheim, Norway
    Duration: 22 Jan 201424 Jan 2014
    Conference number: 11
    http://www.sintef.no/Projectweb/Deepwind_2014/

    Conference

    ConferenceEERA DeepWind 2014 - 11th Deep Sea Offshore Wind R&D Conference
    Number11
    LocationRadisson Blu Royal Garden Hotel
    Country/TerritoryNorway
    CityTrondheim
    Period22/01/201424/01/2014
    Internet address

    Keywords

    • Stroke amplifying toggle brace
    • Passive damping
    • Fixed offshore wind turbine

    Fingerprint

    Dive into the research topics of 'Damping of Offshore Wind Turbine Tower Vibrations by a Stroke Amplifying Brace'. Together they form a unique fingerprint.

    Cite this