Articles | Volume 1, issue 2
Wind Energ. Sci., 1, 271–296, 2016
https://doi.org/10.5194/wes-1-271-2016
Wind Energ. Sci., 1, 271–296, 2016
https://doi.org/10.5194/wes-1-271-2016

Research article 30 Nov 2016

Research article | 30 Nov 2016

Modal dynamics of structures with bladed isotropic rotors and its complexity for two-bladed rotors

Morten Hartvig Hansen

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Cited articles

Allemang, R. J.: The Modal Assurance Criterion – Twenty years of use and abuse, Sound Vibrat., 37, 14–21, 2003.
Bak, C., Bitsche, R., Yde, A., Kim, T., Hansen, M. H., Zahle, F., Gaunaa, M., Blasques, J. P. A. A., Døssing, M., Wedel Heinen, J. J., and Behrens, T.: Light Rotor: The 10-MW reference wind turbine, European Wind Energy Association Conference and Exhibition, 16–19 April 2012, Copenhagen, Denmark, 2012.
Bergami, L. and, Hansen, M. H.: High-fidelity linear time-invariant model of a smart rotor with adaptive trailing edge flaps, Wind Energy., https://doi.org/10.1002/we.2014, in press, 2016.
Bergami, L., Madsen, H. A., and Rasmussen, F.: A Two-Bladed Teetering Hub configuration for the DTU 10 MW RWT: loads considerations, European Wind Energy Association Conference and Exhibition, 11–13 March 2014, Barcelona, Spain, 2014.
Bir, G.: Multi-blade coordinate transformation and its application to wind turbine analysis, ASME Wind Energy Symposium, January 2008, Reno, USA, 1–15, 2008.
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Short summary
The modal dynamics of wind turbines are the fingerprints of their responses under the stochastic excitation from the wind field. Commercial wind turbines have typically three-bladed rotors, and their modal dynamics are well understood. Two-bladed turbines are still commercially less successful, and this work also shows that their modal dynamics are significantly more complex than that of turbines with three or more blades.