Articles | Volume 10, issue 4
https://doi.org/10.5194/wes-10-827-2025
https://doi.org/10.5194/wes-10-827-2025
Research article
 | 
30 Apr 2025
Research article |  | 30 Apr 2025

Coleman-free aero-elastic stability methods for three- and two-bladed floating wind turbines

Bogdan Pamfil, Henrik Bredmose, and Taeseong Kim

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Fast response methods for aero-elastic floating wind turbine design
Bogdan Pamfil, Henrik Bredmose, Taeseong Kim, and Wei Yu
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Preprint under review for WES
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Cited articles

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Borg, M., Pegalajar-Jurado, A., Stiesdal, H., Madsen, F., Nielsen, T., Mikkelsen, R., Mirzaei, M., Lomholt, A., and Bredmose, H.: Dynamic response analysis of the TetraSpar floater in waves: Experiment and numerical reproduction, Mar. Struct., 94, 103546, https://doi.org/10.1016/j.marstruc.2023.103546, 2024. a
Bortolotti, P., Chetan, M., Branlard, E., Jonkman, J., Platt, A., Slaughter, D., and Rinker, J.: Wind Turbine Aeroelastic Stability in OpenFAST, J. Phys. Conf. Ser., 2767, 022018, https://doi.org/10.1088/1742-6596/2767/2/022018, 2024. a
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A floating wind turbine time domain model, which considers dynamic stall, is used to develop Coleman-free aero-elastic stability analysis methods, namely Hill's and Floquet's. We clarify how the floater tilt is involved in the stability analysis, show damping effects of aerodynamic states, prove that results of both methods agree and can reproduce the forward- and backward-whirling rotor modes in a Coleman-based analysis, and demonstrate that both methods can be applied to a two-bladed rotor.
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