Date of Award
5-2025
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Ocean Engineering and Marine Sciences
First Advisor
Chungkuk Jin, Ph.D.
Second Advisor
Seong Hyeon Hong, Ph.D.
Third Advisor
Deniz Velioglu Sogut, Ph.D.
Fourth Advisor
Richard B. Aronson, Ph.D.
Abstract
This study investigates the influence of mooring system configuration and axial stiffness, determined using the syrope method, on the dynamic performance of floating offshore wind turbines (FOWTs). The syrope method accounts for changes in elongation and mass per unit length of the mooring line, while the static stiffness is iteratively updated with the desired pretension until the system reaches tension stability. The results reveal that chain mooring configurations exhibit higher static stiffness, increased tension, and greater motion fluctuations. In contrast, the chain-polyester-chain with static stiffness (CPC-S) configuration shows the lowest static stiffness, resulting in reduced tension and motion fluctuations. The dynamic chain-polyester-chain (CPC-D) configuration presents intermediate static stiffness and moderate tension and motion fluctuations, closely reflecting the real behavior of the structure. Additionally, the study highlights the significant impact of wind and wave forces on platform dynamics, with higher sea states leading to greater side moments and increased moment variability. The findings emphasize the importance of balancing stiffness and compliance in mooring design to optimize platform performance under the combined effects of wind and wave forces.
Recommended Citation
Gavin, Frederick, "Performance Evaluation of Floating Offshore Wind Turbine using the Syrope Method: A Comparison of Chain and Chain-Polyester Configurations" (2025). Theses and Dissertations. 1557.
https://repository.fit.edu/etd/1557
