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2021
Doctoral Thesis
Titel
Impact of Sea Ice Loads on Global Dynamics of Offshore Wind Turbines
Abstract
Support structures for offshore wind turbines (OWTs) are designed and certified site-specific based on the calculated load effects. These load effects originate from static, cyclic, stochastic, and transient loads from the met-ocean environment and rotating components of the wind turbine. The met-ocean environment of the Baltic Sea accounts for variable wind and marine conditions. Sea ice is part of marine conditions which - among others - should be included in the design process of OWT support structures. The load analysis and design of OWTs, including its components, rely on the time-domain based, coupled aero-hydro-servo-elastic simulation tools. Only this approach can provide an accurate prediction of the OWT dynamic response. Dynamic interaction between an OWT and external loads - including ice loads - cannot be disregareded as it may result in considerable loss of accuracy. A proper understanding of sea ice impact on the global dynamics of OWTs - involving the fully-integrated simulation approach - is necessary within the offshore wind research community, industry, and certification authorities.
ThesisNote
Zugl.: Hannover, Univ., Diss., 2020
Tags
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Ice Loads
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offshore
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wind turbine
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structural engineering
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alternative & renewable energy sources & technology
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numerical analysis
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wind energy
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Ice-Structure Interaction
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structural dynamics
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Offshore wind turbine
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OWT Dynamics
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Simulation und Modellierung
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Maschinenbauingenieur
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Windkraftanlageningenieur
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Ingenieur