Finite element frequency analysis of offshore wind turbine structure under soil and structure interaction

Hsuan Teh Hu, Chi Yang, Ding Sheng Yeh, Shyne Ruey Liaw, Chu Kuan Lin, Yu Ming Liu

研究成果: Conference contribution

摘要

In recent years, nations over the world were looking for alternative energy sources to reduce global warming caused by traditional fossil fuel burning. Renewable energy sources like wind power have great opportunities in this direction, because of low pollution. The offshore wind turbine (OWT) structures are frequently subjected to dynamic loads during operation. Hence, knowledge of their dynamic characteristics such as their natural frequencies, is essential to avoid damaging resonances. In this study, the Abaqus finite element program is used to calculate the natural frequency of a jacket-type offshore wind turbine supporting structure. During the analysis, the nonlinear behavior has also been considered. Four models: the finite element model, the hybrid finite-infinite element model with the soil material simulated by infinite element, the soil spring model adopting the soil equation proposed by the American Petroleum Institute, and the equivalent soil spring model were utilized in this study. The nonlinear behavior of the soil-pile interaction and the natural frequency of the OWT structure were thoroughly analyzed.

原文English
主出版物標題Proceedings of the 26th International Ocean and Polar Engineering Conference, ISOPE 2016
編輯Alan M. Wang, Jin S. Chung, Ted Kokkinis, Michael Muskulus
發行者International Society of Offshore and Polar Engineers
頁面60-67
頁數8
ISBN(電子)9781880653883
出版狀態Published - 2016 一月 1
事件26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016 - Rhodes, Greece
持續時間: 2016 六月 262016 七月 1

出版系列

名字Proceedings of the International Offshore and Polar Engineering Conference
2016-January
ISSN(列印)1098-6189
ISSN(電子)1555-1792

Other

Other26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016
國家/地區Greece
城市Rhodes
期間16-06-2616-07-01

All Science Journal Classification (ASJC) codes

  • 能源工程與電力技術
  • 海洋工程
  • 機械工業

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