Akademik Veri Yönetim Sistemi
Journal of Ocean Engineering and Marine Energy, 2025 (ESCI)
This study examines the hydrodynamic behavior of a novel Floating Offshore Wind Turbine FOWT platform incorporating three truncated cone columns. In contrast to earlier inclined-column concepts (e.g., SPIC and SHLB), the columns are designed with an upward-decreasing inclination, leading to a reduced cross-sectional area toward the still water level. This geometry is designed to mitigate wave forces by limiting the area directly exposed to wave action, thereby enhancing platform stability and reducing costs for floating wind turbines. To assess the platform’s performance, experiments were conducted using a 1:50 scale model in the wave basin of the Hydrodynamics Research Laboratory at Yildiz Technical University. The Froude scaling law and JONSWAP spectrum were employed to replicate realistic sea states. The experimental program included free decay tests to determine natural periods, regular wave tests to obtain response amplitude operator (RAO) curves, irregular wave tests to examine wave-induced responses, and combined irregular wave–steady aerodynamic thrust tests to assess the influence of wind loading. The study focuses on pitch, surge, and heave motions, as well as mooring line tensions. Results show that natural periods align with theoretical values, while RAO curves provide detailed motion characteristics. Under irregular waves, mooring tensions fluctuate significantly, with pitch motion showing sensitivity near the natural period. The addition of aerodynamic thrust significantly influences the platform dynamics, especially in surge motion. Compared to the wave-only condition, the square root of the zeroth-order spectral moment decreased by 47%, while the maximum mooring line tension increased by 89%. These quantitative findings enhance our understanding of platform behavior under combined loading, supporting the design of more efficient and resilient floating wind turbine platforms under realistic offshore conditions.