Design and Analysis of Jacket Substructures for Offshore Wind Turbines

I-Wen Chen, Bao-Leng Wong, Yu-Hung Lin, Shiu-Wu Chau and Hsin-Haou Huang
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I-Wen Chen: Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei 106, Taiwan
Bao-Leng Wong: Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei 106, Taiwan
Yu-Hung Lin: Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei 106, Taiwan
Shiu-Wu Chau: Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei 106, Taiwan
Hsin-Haou Huang: Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei 106, Taiwan

Energies, 2016, vol. 9, issue 4, 1-24

Abstract: This study focused on investigating various existing types of offshore jacket substructures along with a proposed twisted-tripod jacket type (modified jacket (MJ)-structures). The architectures of the three-leg structure, as well as the patented twisted jacket structure motivated the design of the proposed MJ-structures. The dimensions of the structures were designed iteratively using static stress analysis to ensure that all structures had a similar level of load-carrying capability. The numerical global buckling analyses were performed for all structures after the validation by the scaled-down experiments. The local buckling strength of all compressive members was analyzed using the NORSOK standard. The results showed that the proposed MJ-structures possess excellent structural behavior and few structural nodes and components competitive with the patented twisted jacket structures, while still maintaining the advantages of low material usage similar to the three-leg jacket structures. This study provides alternatives for the initial selection and design of offshore wind turbine substructures for green energy applications.

Keywords: offshore wind turbine; jacket structure; static analysis; buckling 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: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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