Journal article
The influence of fully nonlinear wave forces on aero-hydro-elastic calculations of monopile wind turbines
Department of Wind Energy, Technical University of Denmark1
Fluid Mechanics, Department of Wind Energy, Technical University of Denmark2
Department of Mechanical Engineering, Technical University of Denmark3
Fluid Mechanics, Coastal and Maritime Engineering, Department of Mechanical Engineering, Technical University of Denmark4
The response of an offshore wind turbine tower and its monopile foundation has been investigated when exposed to linear and fully nonlinear irregular waves on four different water depths. The investigation focuses on the consequences of including full nonlinearity in the wave kinematics. The linear and nonlinear irregular wave realizations are calculated using the fully nonlinear potential flow wave model OceanWave3D [1].
The linear and nonlinear wave realizations are compared using both a static analysis on a fixed monopile and dynamic calculations with the aeroelastic code Flex5 [2]. The conclusion from this analysis is that linear wave theory is generally sufficient for estimating the fatigue loading, but wave nonlinearity is important in determining the ultimate design loads.
Language: | English |
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Year: | 2016 |
Pages: | 162-188 |
ISSN: | 18734170 and 09518339 |
Types: | Journal article |
DOI: | 10.1016/j.marstruc.2016.06.004 |
ORCIDs: | Bredmose, Henrik and Bingham, Harry B. |