Abstract

This paper presents a multi-dynamic analysis model for Floating Offshore Wind Turbines (FOWTs) in the frequency domain, offering computational efficiency for fatigue analysis and initial design stages. The linearization methods for rotor thrust (controlled by Reference Open-Source Controller), nonlinear damping, and mooring dynamics are introduced with a statistical approach and perturbation method. Additionally, a parametric study reveals that mean wind speeds significantly affect system characteristics, while turbulence intensity has minimal impact. To obtain hydrodynamic properties, a hydrodynamic code, RADIS, was developed and utilized in the multi-dynamic analysis. The frequency analysis model demonstrated good agreement with OpenFAST in motion dynamics, though discrepancies in mooring tensions suggest the need for including inertia effects. This paper also discusses force and moment calculations at the tower baseline and rotor hub.

Keywords:
artificial intelligence, rotor thrust, social responsibility, subsea system, sustainability, sustainable development, offshore wind turbine, openfast, algorithm, exciting force
Subjects:
Environment, Mooring systems, Offshore Facilities and Subsea Systems, Sustainability/Social Responsibility, Sustainable development
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