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2012
Conference Paper
Titel
Modeling offshore wind turbine substructures using engineer design data - A newly developed parametric approach
Abstract
This paper shows how substructures of offshore wind turbines can be described based on a set of parameters which are not dependent on a specific simulation tool. This parameter based description is introduced as Engineer Design Data (EDD). EDD allows to change the simulation tool in a fast and convenient way while keeping the model consistent. Based on EDD, substructure models for aero-servo-hydro-elastic load simulations of offshore wind turbines are generated. To demonstrate this, one set of EDD is used for generating models of fixed substructures in the syntax of the finite element program ANSYS and the object oriented modeling language Modelica. The generated models are compared to models that were created in the traditional way. The comparison shows a very good agreement between the models, which proves the correctness of the approach. Furthermore, a model of a spar buoy type floater is introduced that was developed in the in-house tool OneWind using Modelica. It i s verified against offshore wind turbine simulation tools that were used in Phase IV of the Offshore Code Comparison Collaboration (OC3) project under IEA Wind Task 23. This floater model will be used to extend the presented EDD from fixed substructures to floating ones.