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Steel and Composite Structures Volume 43, Number 3, May10 2022 (Special Issue) pages 363-373 DOI: https://doi.org/10.12989/scs.2022.43.3.363 |
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Comparative study on the structural behavior of a transition piece for offshore wind turbine with jacket support |
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Chuan Ma and Goangseup Zi
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| Abstract | ||
| As a key reinforcement connection between a tower and a substructure in offshore wind turbine system, the transition piece is inevitably subjected to cyclic dynamic environmental loads such as wind, current and wave. Therefore, well designed transition piece with high strength and good fatigue resistance is of great significance to the structural safety and reliability of offshore wind power systems. In this study, the structural behavior of the transition piece was studied by an extensive sets of finite element analyses. Three widely used types of transition piece were considered. The characteristics of stress development, fatigue life and weight depending on the type of the transition piece were investigated in the ultimate limit state (ULS) and the fatigue limit state (FLS) of a 5-MW offshore wind turbine to be placed in Korea. An optimal form of the transition piece was proposed based on this parametric study. | ||
| Key Words | ||
| finite element analysis; offshore wind turbine; optimal form; transition piece; ULS and FLS | ||
| Address | ||
| Chuan Ma and Goangseup Zi:School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Korea | ||