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

KARA, Fuat (2023). Coupled dynamic analysis of horizontal axis floating offshore wind turbines with a spar buoy floater. Wind Engineering.

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

Item Type: Article
Uncontrolled Keywords: 0907 Environmental Engineering; 0911 Maritime Engineering; Energy; 4008 Electrical engineering; 4011 Environmental engineering
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SWORD Depositor: Symplectic Elements
Depositing User: Symplectic Elements
Date Deposited: 23 Jan 2023 11:31
Last Modified: 11 Oct 2023 17:48

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