Coupled Dynamics of a Dual Lift Operation: Upending Method of an XXL Monopile

Offshore wind farms are moving to deeper waters, implying that larger substructures will need to be installed. The monopile is the leading substructure nowadays and this structure could be promising for use in deeper waters as well. Generally, jack-up vessels are used for the installation of the substructures and turbines. However, the jacking...

Dynamic Analysis of a Floating Vertical Axis Wind Turbine using the Actuator Cylinder Flow Theory

An ever-increasing demand for electricity pushes the wind energy industry to deep waters that favor floating concepts. Vertical axis wind turbines (VAWTs) failed for onshore applications in the 1980s, but its advantages raise the potential for competitive floating designs and ultimately lowering the cost of energy. This thesis aims to (1) better...

Design of a Steel Pontoon-type Semi-submersible Floater Supporting the DTU 10MW Reference Turbine

In recent years, offshore wind energy has experienced a huge development. Floating wind turbines may become competitive for water depth larger than 50m. However, high cost is still the main challenge for the offshore wind industry. Floating offshore designs provides the possibility to carry large wind turbines to reduce the cost per MWh. In this...