Identification of critical design load cases for a jacket supported offshore wind turbine

Shaofeng Wang, Torben J. Larsen

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Abstract

This paper identifies the most critical design load cases of ultimate load analysis for an offshore wind jacket foundation from IEC 61400-3 to understand the relative severity among different operation situation. A comprehensive design load cases for ultimate load analysis were simulated using the DTU Wind Energy aero-elastic code HAWC2. The superelement modelling was used to speed up the simulation. The modified INNWIND.EU reference jacket and DTU 10MW wind turbine were used as the reference model. A variety of critical design load cases were identified from all the investigated cases considering the bending moments at tower bottom and jacket mudline as the key design parameters for wind turbine and jacket foundation, respectively. It is shown that the hydrodynamic loading in severe sea state is the design drive load for jacket foundation with respect to the ultimate bending moment at the mudline.
Original languageEnglish
Title of host publicationProceedings of the 27th (2018) International Ocean and Polar Engineering Conference
PublisherInternational Society of Offshore & Polar Engineers
Publication date2017
Pages257-265
Article numberISOPE-I-17-325
ISBN (Electronic)978-1-880653-97-5
Publication statusPublished - 2017
EventISOPE 2017 - International Ocean and Polar Engineering Conference - San Francisco, United States
Duration: 25 Jun 201730 Jun 2017
http://www.isope.org/publications/proceedings/ISOPE/ISOPE%202017/data/index.html

Conference

ConferenceISOPE 2017 - International Ocean and Polar Engineering Conference
Country/TerritoryUnited States
CitySan Francisco
Period25/06/201730/06/2017
Internet address
SeriesProceedings of the International Offshore and Polar Engineering Conference
ISSN1098-6189

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