An engineering approach to dynamic analysis of an offshore monopile wind turbine is presented in this paper. The wind-wave coupling for shallow water conditions is considered. Different wind, wave and current loads on the wind turbine within the cut-in and cut-off conditions are taken into account. The hydrodynamic loading is computed based on the corresponding sea-states. The interaction between the foundation and the soil is simulated by nonlinear springs, which stiffness properties are obtained from the axial load transfer (t-z) curve, the tip load-displacement (Q-z) curve and the lateral load-deflection (p-y) curve. Three types of soil conditions are considered in the simulations, i.e., 100% sand layer, 50% sand layer (top) and 50% clay layer (bottom), as well as 100% clay layer. For a given current speed, the variations of the static and the dynamic responses of the wind turbine due to the effects of different wind-wave load combinations and soil conditions have been investigated and discussed.
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ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
June 9–14, 2013
Nantes, France
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5542-3
PROCEEDINGS PAPER
Dynamic Analysis of Offshore Monopile Wind Turbine Including the Effects of Wind-Wave Loading and Soil Properties
Hui Li,
Hui Li
Harbin Engineering University, Harbin, Heilongjiang, China
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Bernt J. Leira,
Bernt J. Leira
Norwegian University of Science & Technology, Trondheim, Norway
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Dag Myrhaug
Dag Myrhaug
Norwegian University of Science & Technology, Trondheim, Norway
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Muk Chen Ong
MARINTEK, Trondheim, Norway
Hui Li
Harbin Engineering University, Harbin, Heilongjiang, China
Bernt J. Leira
Norwegian University of Science & Technology, Trondheim, Norway
Dag Myrhaug
Norwegian University of Science & Technology, Trondheim, Norway
Paper No:
OMAE2013-10527, V008T09A029; 11 pages
Published Online:
November 26, 2013
Citation
Ong, MC, Li, H, Leira, BJ, & Myrhaug, D. "Dynamic Analysis of Offshore Monopile Wind Turbine Including the Effects of Wind-Wave Loading and Soil Properties." Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. Volume 8: Ocean Renewable Energy. Nantes, France. June 9–14, 2013. V008T09A029. ASME. https://doi.org/10.1115/OMAE2013-10527
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