Study on the Structural Strength Assessment of Mega Offshore Wind Turbine Tower

Jianlun Jiang, Han Koo Jeong () and Haoyu Dou
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Jianlun Jiang: Department of Naval Architecture and Ocean Engineering, Kunsan National University, Gunsan 54150, Republic of Korea
Han Koo Jeong: Department of Naval Architecture and Ocean Engineering, Kunsan National University, Gunsan 54150, Republic of Korea
Haoyu Dou: Department of Naval Architecture and Ocean Engineering, Kunsan National University, Gunsan 54150, Republic of Korea

Energies, 2024, vol. 18, issue 1, 1-18

Abstract: This study addresses the critical engineering challenges in the structural design of offshore wind turbine towers, focusing on enhancing resistance to extreme environmental loads. As the demand for renewable energy increases, the design of mega offshore wind turbines requires robust solutions for structural reliability and longevity. Using finite element analysis (FEA), this research evaluates the effectiveness of various internal stiffener designs—ring stiffeners, skeletal-type stiffeners, and their combinations—in reinforcing cylindrical offshore wind turbine towers against wind and wave forces. Detailed simulations model the physical behavior of different stiffener configurations, assessing parameters such as von Mises stress distributions, displacement and buckling under load. The results indicate that towers with combined stiffener designs exhibit superior structural resistance and reduced stress concentrations compared to those with singular stiffeners or none. These findings have significant implications for the design and construction of mega offshore wind turbines, highlighting the importance of integrating advanced stiffener configurations to improve structural stability in harsh marine environments.

Keywords: offshore wind turbines; wind turbine tower; tower stiffener design; buckling resistance; structural strength analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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