Abstract
The dynamic behaviour of the wind turbine tower and blade structure is crucial for structural fatigue propagation of large wind turbines at multi megawatt scale. Mitigation the structural response to windinduced vibrations takes therefore a central role in modern wind turbine design. This study investigates the impact of passive tuned mass damper (TMD) on the dynamic behaviour of the W2E 120/3.0fc wind turbine designed by W2E Wind to Energy. Two different TMD concepts are investigated. A TMD is implemented at the tower top to mitigate fore-aft vibrations of the turbine. Further a TMD is mounted on each turbine blade to mitigate flapwise vibrations of the blades. The performance of the TMDs is evaluated by means of a detailed validated multibody model of the turbine prototype.
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