Comparison of Wind Turbine Blade Models through Correlation with Experimental Modal Data

Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics 2020
Rims Janeliukštis, R. Riva, E. Di Lorenzo, M. Luczak, S. C. Yeniceli, S.H. Madsen, B. Peeters

In this work, wind turbine blade numerical models have been developed with two different finite element software - DTU Wind Energy HAWCStab2 with Timoshenko beam elements and MSC NASTRAN with solid elements. A correlation analysis has been performed comparing both of these models with experimentally measured data in order to validate the models. For the experimental part, we have performed the experimental and operational modal analysis of a 14.3 m long composite blade clamped at the root. The natural frequencies have been extracted from the measured acceleration responses with three different methods - PolyMAX, MOESP and CWT and compared with the ones computed by the two software, while the mode shapes were correlated with MAC and COMAC metrics. Although the frequency values are in good agreement, the ordering of the 5th flapwise mode shape has been swapped with the 1st simulated torsional mode in the solid model, while this was not the case with mode shape ordering in the beam model.

Atslēgas vārdi
Modal analysis; Structural dynamics; Turbine components; Wind power; Wind turbines; Turbomachine blades; Acceleration response; Composite blades; Correlation analysis; Experimental and operational modal analysis; Finite element software; Timoshenko beam elements; Torsional modes; Wind turbine blades
Hipersaite
https://orbit.dtu.dk/en/publications/comparison-of-wind-turbine-blade-models-through-correlation-with-

Janeliukštis, R., Riva, R., Di Lorenzo, E., Luczak, M., Yeniceli, S., Madsen, S., Peeters, B. Comparison of Wind Turbine Blade Models through Correlation with Experimental Modal Data. No: Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics, Beļģija, Heverlee, 7.-9. septembris, 2020. Heverlee: KU Leuven, 2020, 3507.-3514.lpp. ISBN 978-908289311-3.

Publikācijas valoda
English (en)