Abstract
In this paper the dynamics of a two-bladed turbine is investigated
numerically as well as experimentally with respect to how the turbine
frequencies change with the rotor speed. It is shown how the turbine
frequencies of a two-bladed rotor change with the azimuthal position at
standstill and how the frequencies start whirling during rotor rotation.
The whirling for two-bladed rotors change with multiple P
contributions and not only ±1P as is previously seen for three-bladed
wind turbine rotors. A three-bladed turbine was also analyzed in similar
way and results were compared. This turbine was investigated both in a
perfect isotropic condition where all blades have identical properties as
well as an imbalanced edition where one blade had increased mass.
Original language | English |
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Journal | Proceedings of the International Offshore and Polar Engineering Conference |
Volume | 2015-1 |
Pages (from-to) | 547-553 |
ISSN | 1098-6189 |
Publication status | Published - 2015 |
Event | 25th International Ocean and Polar Engineering Conference - Kona, United States Duration: 21 Jun 2015 → 26 Jun 2015 http://www.isope.org/conferences/conferences.htm |
Conference
Conference | 25th International Ocean and Polar Engineering Conference |
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Country | United States |
City | Kona |
Period | 21/06/2015 → 26/06/2015 |
Internet address |
Keywords
- Wind turbine
- Dynamics
- Experiment
- Imbalanced rotor
- Campbell
- Whirling
- Two blades
- Three blades