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Structure design and assessment of a floating foundation for offshore wind turbines

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

This paper summarizes the assessment of the structural analysis and design of a floating foundation for offshore floating wind turbine (FWT) based on DNVGL standard and Eurocode in terms of economy and reliability. The wind loads are calculated using empirical equations. The wave loads are obtained and verified using various methods including hand calculation, AQWA and Flow-3D. It is found that the shell thickness could be reduced significantly by introducing the stiffeners (stringer or ring), which can decrease the weight of the hull and lower the cost. While DNVGL and Eurocode yield similar design solutions if using plane shell structures, Eurocode significantly underestimates the buckling resistance of stiffened cylindrical shells.

Original languageEnglish
Title of host publicationASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791859353
DOIs
Publication statusPublished - 2019
EventASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019 - St. Julian's, Malta
Duration: 3 Nov 20196 Nov 2019

Publication series

NameASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019

Conference

ConferenceASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019
Country/TerritoryMalta
CitySt. Julian's
Period3/11/196/11/19

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Buckling resistance
  • Floating foundation
  • Shell structure
  • Structural design
  • Wave loads
  • Wind loads

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