Bewertung der Ermüdungsfestigkeit von Baustrukturen in Offshore-Windenergie-Anlagen

Translated title of the contribution: Fatigue assessment of support structures for offshore wind energy converters

Sebastian Thöns, Rolf Guenter Rohrmann, Werner Rücker, Michael Havbro Faber

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The structure of wind energy converters secures a reliable energy production. Hence an adequate reliability of the structure and additionally permanent assessment and maintenance is required. Within this paper methods for the assessment of the important damage mechanism fatigue in combination with monitoring of the fatigue reliability utilizing damage indicators are proposed. These methods comprise structural system, material degradation and probabilistic models as well as monitoring data of an offshore wind energy converter prototype. The structural reliability of the structure as designed is calculated based on an overall dynamic analysis using a SN-approach. Herewith fatigue sensitive components are identified. Damage indicators for monitoring the fatigue reliability based on damage equivalent strains are presented.
Translated title of the contributionFatigue assessment of support structures for offshore wind energy converters
Original languageGerman
JournalBautechnik
Volume77
Issue number9
Pages (from-to)630-638
Number of pages9
ISSN0932-8351
DOIs
Publication statusPublished - 2008
Externally publishedYes

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