Coupled dynamic analysis of horizontal axis floating offshore wind turbines with a spar buoy floater

Coupled dynamic analysis of a floating offshore wind turbine (FOWT) is predicted with in-house ITU-WAVE computational tool. The hydrodynamic parameters are approximated time marching boundary integral equation whilst aerodynamic solved unsteady blade element momentum method. In addition, forces on FOWT due to mooring lines quasi-static viscous effects included Morison equation. FOWT’s blades considered as an elastic structure tower rigid structure. steady speed surge motion spectrum decrease the amplitude over wave frequency ranges, but this effect not significant. duration domain simulation plays significant role in region and pitch resonant frequencies. numerical results code for eigenfrequencies blades, aerodynamics hydrodynamics validated against other which shows satisfactory agreements.