Details
| Original language | English |
|---|---|
| Pages (from-to) | 74-82 |
| Number of pages | 9 |
| Journal | Steel Construction |
| Volume | 14 |
| Issue number | 2 |
| Publication status | Published - 11 May 2021 |
Abstract
Extended keynote paper of Eurosteel 2021. This article provides an overview of the various support structures for offshore wind turbines and addresses the challenges that arise for the different design variants. First of all, the existing types of support structures are explained and their benefits and shortcomings discussed. Following that, the focus is on material fatigue and its analysis, which is of great importance due to the cyclic loading on the structures. A central topic of this article is the experimental evaluation of fatigue strength using large-scale test setups and state-of-the-art measurement methods. Critical and complex design details such as welds for extremely thick plates, tubular joints, grouted connections, large HV bolts and ring flanges are investigated to improve methods of analysis. Further, the new series of German standards (DIN 18088) for support structures for wind energy turbines and platforms is addressed. Finally, these topics are summarized and the importance of offshore wind energy for the transition to cleaner energy is emphasized.
Keywords
- connections, Experiments, fatigue strength, Masts and towers, offshore wind energy, Special structures, standardization, support structures, welded steel joints, Welding and cutting
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Engineering(all)
- Mechanics of Materials
- Materials Science(all)
- Metals and Alloys
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Steel Construction, Vol. 14, No. 2, 11.05.2021, p. 74-82.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Improvements in the fatigue design of support structures for offshore wind turbines
AU - Schaumann, Peter
AU - Böhm, Manuela
AU - Schürmann, Karsten
N1 - The results presented were developed in different joint research projects, two of them managed by FOSTA (‘FAT-InWeld’, 19104 N, and ‘Big Bolts’, 486 ZN) via AiF with-in the programme for promoting the Industrial Collective Research (IGF) of the German Ministry of Economic Af-fairs and Energy (BMWi) and one managed by PtJ (‘GROWup’, FKZ 0325290) and funded by the German Federal Ministry for Economic Affairs and Energy (BMWi). The authors express their deep gratitude for the financial support received from the BMWi, AiF, FOSTA and the companies involved in the projects.Open access funding enabled and organized by Projekt DEAL
PY - 2021/5/11
Y1 - 2021/5/11
N2 - Extended keynote paper of Eurosteel 2021. This article provides an overview of the various support structures for offshore wind turbines and addresses the challenges that arise for the different design variants. First of all, the existing types of support structures are explained and their benefits and shortcomings discussed. Following that, the focus is on material fatigue and its analysis, which is of great importance due to the cyclic loading on the structures. A central topic of this article is the experimental evaluation of fatigue strength using large-scale test setups and state-of-the-art measurement methods. Critical and complex design details such as welds for extremely thick plates, tubular joints, grouted connections, large HV bolts and ring flanges are investigated to improve methods of analysis. Further, the new series of German standards (DIN 18088) for support structures for wind energy turbines and platforms is addressed. Finally, these topics are summarized and the importance of offshore wind energy for the transition to cleaner energy is emphasized.
AB - Extended keynote paper of Eurosteel 2021. This article provides an overview of the various support structures for offshore wind turbines and addresses the challenges that arise for the different design variants. First of all, the existing types of support structures are explained and their benefits and shortcomings discussed. Following that, the focus is on material fatigue and its analysis, which is of great importance due to the cyclic loading on the structures. A central topic of this article is the experimental evaluation of fatigue strength using large-scale test setups and state-of-the-art measurement methods. Critical and complex design details such as welds for extremely thick plates, tubular joints, grouted connections, large HV bolts and ring flanges are investigated to improve methods of analysis. Further, the new series of German standards (DIN 18088) for support structures for wind energy turbines and platforms is addressed. Finally, these topics are summarized and the importance of offshore wind energy for the transition to cleaner energy is emphasized.
KW - connections
KW - Experiments
KW - fatigue strength
KW - Masts and towers
KW - offshore wind energy
KW - Special structures
KW - standardization
KW - support structures
KW - welded steel joints
KW - Welding and cutting
UR - http://www.scopus.com/inward/record.url?scp=85105092630&partnerID=8YFLogxK
U2 - 10.1002/stco.202000060
DO - 10.1002/stco.202000060
M3 - Article
AN - SCOPUS:85105092630
VL - 14
SP - 74
EP - 82
JO - Steel Construction
JF - Steel Construction
SN - 1867-0520
IS - 2
ER -