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ARTICLE
Abstract
The monopile foundation is the main form of offshore wind turbine foundation,
and its surrounding scouring pit will reduce the constraints of the soil on the piles, which
makes wind turbine foundation instability a key issue affecting the structural safety of
offshore wind turbines. In previous studies, the rotating rotor and control system are
neglected when studying the influence of scour on the offshore wind turbine structure.
In this paper, the numerical model of the blade-tower-monopile integrated offshore wind
turbine is established, and the influence of scour on the dynamic characteristics of wind
turbine is obtained considering parameters, such as blade azimuth, pitch angle, rotor speed,
and soil stiffness. After calculating wind load by using the modified Blade Element
Momentum theory, the impact of scour on the wind-induced response of a monopile wind
turbine is achieved, considering control system and aeroelastic coupling. Therefore, a
reference method is proposed for estimating scour depth according to the monopile
foundation offshore wind turbine wind-induced response.
Keywords
Cite This Article
Tang, D., Zhao, M. (2020). Scour Effect on Dynamic Characteristics and Responses of Offshore Wind Turbines.
CMES-Computer Modeling in Engineering & Sciences, 124(2), 433–457. https://doi.org/10.32604/cmes.2020.09268
Citations