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Journal of Marine Science and Application[ISSN:1002-2848/CN:61-1400/f]

卷:

期数:

2023年1

页码:

75-83

栏目:

出版日期:

2023-03-25

Info

Title:

Time-Domain Response-Based Structural Analysis on a Floating Offshore Wind Turbine

Author(s):

Hyungtae Lee¹;  Wonki Moon²;  Mugyeom Lee²;  Kanghyun Song²;  Zhirong Shen¹;  Johyun Kyoung¹;  Aldric Baquet¹;  Jang Kim¹;  Ikseung Han³;  Sewan Park³;  Kyong-Hwan Kim³;  and Booki Kim⁴

Affilations:

Author(s):

Hyungtae Lee¹;  Wonki Moon²;  Mugyeom Lee²;  Kanghyun Song²;  Zhirong Shen¹;  Johyun Kyoung¹;  Aldric Baquet¹;  Jang Kim¹;  Ikseung Han³;  Sewan Park³;  Kyong-Hwan Kim³;  and Booki Kim⁴

1 Front Energies, Houston, TX, 77084, USA;
2 Korean Register, Busan 46762, Korea;
3 Korean Research Institute of Ships & Ocean Engineering, Daejeon 34103, Korea;
4 Seoul National University, Seoul 08826, Korea

Keywords:

Time domain|Structural analysis|Lodal response|Floating wind turbine;  Buckling and strength analysis

分类号:

-

DOI:

10.1007/s11804-023-00322-0

Abstract:

As the turbine blade size becomes larger for economic power production, the coupling effect between wind turbine and floating substructure becomes important in structural assessment. Due to unsteady turbulent wind environment and corresponding coupled substructure response, time-domain analysis is required by international electrotechnical commission and class societies. Even though there are a few numerical tools available for the time domain structural analysis based on conventional coupled motion analysis with wind turbine, the application of conventional time domain analysis is impractical and inefficient for structural engineers and hull designers to perform structural strength and fatigue assessment for the required large number of design load cases since it takes huge simulation time and computational resources. Present paper introduces an efficient time-domain structural analysis practically applicable to buckling and ultimate strength assessment. Present method is based on ‘lodal’ response analysis and pseudo-spectral stress synthesizing technique, which makes timedomain structural analysis efficient and practical enough to be performed even in personal computing system. Practical buckling assessment methodology is also introduced applicable to the time-domain structural analyses. For application of present method, a 15-MW floating offshore wind turbine platform designed for Korean offshore wind farm projects is applied. Based on full-blown time domain structural analysis for governing design load cases, buckling and ultimate strength assessments are performed for the extreme design environments, and the class rule provided by Korean Register is checked.

References:

ABS (2020a) Guide for building and classing-Floating offshore wind turbines. American Bureau of Shipping
ABS (2020b) Global performance analysis for floating offshore wind turbines. Guidance notes, American Bureau of Shipping
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Kim KH, Park SW, Ha YJ, Lee HT, Shen Z, Kyoung JH, Kim JW (2022) Development of 15MW floating offshore wind turbine substructure customized to Korean shipyards. 4th International Offshore Wind Technical Conference, Boston, IOWTC2022-96596
Korean Register (2010) Guidance for floating structures. Korean Register of Shipping, Busan
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Kyoung JH, Samaria S, Kim JW, Duffy B (2019) Response based time domain structural analysis on floating offshore platform. 38th International Conference on Ocean, Offshore and Arctic Engineering, Glasgow, OMAE2019-96139
Kyoung JH, Samaria S, Kim JW (2020) Time domain structural fatigue analysis of floating offshore platforms:A response based technique. 39th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2020-18314
Kyoung JH, Samaria S, O’Donnell J, Tallavajhula S (2021) Advances in offshore structural analysis using response-based time-domain approach. Offshore Technology Conference, OTC-31280-MS

Memo

Memo:

Received date:2022-10-20;Accepted date:2022-12-29。<br>Foundation item:Supported by the R&D Project of "Development of core technology for offshore green hydrogen to realize a carbon-neutral society" by the Korea Research Institute of Ships and Ocean Engineering (PES4360).<br>Corresponding author:Johyun Kyoung,E-mail:Johyun.kyoung@frontenergies.com

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Last Update: 2023-04-10