1Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran
American Journal of Civil Engineering and Architecture.
2022,
Vol. 10 No. 1, 1-7
DOI: 10.12691/ajcea-10-1-1
Copyright © 2022 Science and Education PublishingCite this paper: Arman Aghaei Ganjgani, Hamid Reza Ghafari, Hassan Ghassemi, Mahmoud Ghiasi. Investigation of Buoy Size and Location on Hydrodynamic Response and Mooring Tension of the DeepCwind Floating Wind Turbine.
American Journal of Civil Engineering and Architecture. 2022; 10(1):1-7. doi: 10.12691/ajcea-10-1-1.
Correspondence to: Hassan Ghassemi, Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran. Email:
gasemi@aut.ac.irAbstract
This paper investigates the effect of different sizes and locations of the buoy on the dynamic response of the floating platform. The full-scale of the OC4-DeepCwind semi-submersible floating offshore wind turbine (FOWT) platform was analyzed using the boundary element method (BEM) in ANSYS-AQWA software, considering regular wave conditions. Platform motions and mooring line tension in the surge, heave, and pitch are presented and discussed in time and frequency domains. Validation was carried out by comparison of the platform motion RAO (response amplitude operator) and fairlead tension RAO magnitudes in the surge, heave, and pitch between numerical and experimental data under seven sea states' regular waves. Four different buoy diameters and its locations (B1, B2, B3, and B4) have been considered. The results show that increasing the buoy size leads to an increase in surge motion, while the amplitude of semi-submersible decreases in heave motion. Also, in the pitch motion, it is reduced for B1 and B2, while an increase was found for B3 and B4. In addition, increasing the distance of buoy from the platform leads to an increase in the surge motion response while it is reduced for that of the heave response.
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