On the influence of rotor nacelle assembly modelling on the computed eigenfrequencies of offshore wind turbines
T Reinhardt,
C Sastre Jurado,
W Weijtjens
et al.
Abstract:Motivated by the mismatch of measured and computed eigenfrequencies for the second tower mode of offshore wind turbines as well as previous studies examining the influence of including flexible blades in structural models, the need to extend the current integrated model to include flexible blades became apparent. A basic modelling approach which takes the blades as beam elements was implemented in an in-house finite element model of offshore wind turbines and benchmarked for the NREL 5 MW reference turbine wit… Show more
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