Publications

Ucar, M., Hmedi, M., Uzunoglu, E. and Oguz, E. (2025), Fatigue load evaluation of multiple floating wind turbine systems, Ocean Engineering, Vol. 330, pp. 121101

This paper presents a fatigue load analysis of five floating wind turbine platforms—CENTEC-TLP, Softwind spar buoy, OO-Star, Nautilus, and TripleSpar—each supporting the DTU 10-MW reference wind turbine. Using 13,020 time-domain simulations, the study evaluates fatigue loads on rotor blade roots and tower bases across a broad spectrum of environmental conditions. Axial stresses at the tower base and moments at the blade root were employed for fatigue assessment. The analysis reveals that tower base fatigue is primarily driven by tower displacement, which is closely linked to tower stiffness and inertia, with floater rotational motion playing a secondary role. Conversely, blade root fatigue is predominantly influenced by the amplitude of platform rotational motions. The results highlight the critical impact of platform design and dynamics on the structural integrity and fatigue performance of floating wind turbines, providing valuable guidance for optimizing future designs.



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