Enhancing the damping of wind turbine rotor blades, the DAMPBLADE project

P.K. Chaviaropoulos, E.S. Politis, D.J. Lekou, Niels N. Sørensen, M.H. Hansen, B.H. Bulder, D. Windelaar, C. Lindenburg, D.A. Saravanos, T.P. Philippidis, C. Galiotis, M.O.L. Hansen, T. Kossivas

    Research output: Contribution to journalJournal articleResearchpeer-review


    A research programme enabling the development of damped wind turbine blades, having the acronym DAMPBLADE, has been supported by the EC under its 5th Framework Programme. In DAMPBLADE the following unique composite damping mechanisms were exploited aiming to increase the structural damping: tailoring of laminate damping anisotropy, damping layers and damped polymer matrices. Additional objectives of the project were the development of the missing critical analytical technologies enabling the explicit modelling of composite structural damping and a novel ‘composite blade design capacity’ enabling the direct prediction of aeroelastic stability and fatigue life; the development and characterization of damped composite materials; and the evaluation of new technology via the design and fabrication of damped prototype blades and their full-scale laboratory testing. After 4 years of work a 19 m glass/polyester damped blade was designed, manufactured and tested using the know-how acquired. Modal analysis of this blade at the testing facility of CRES showed a nearly 80% increase in the damping ratio of both the first flap and lag modes compared with the earlier, standard, design practice. Copyright © 2005 John Wiley & Sons, Ltd.
    Original languageEnglish
    JournalWind Energy
    Issue number1-2
    Pages (from-to)163-177
    Publication statusPublished - 2006
    Event2004 European Wind Energy Conference and Exhibition - London, United Kingdom
    Duration: 22 Nov 200425 Nov 2004


    Conference2004 European Wind Energy Conference and Exhibition
    Country/TerritoryUnited Kingdom
    Internet address


    • structural damping
    • modelling damping
    • aeroelastic stability
    • composites


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