Details
| Original language | English |
|---|---|
| Pages (from-to) | 141-150 |
| Number of pages | 10 |
| Journal | Applied ocean research |
| Volume | 55 |
| Publication status | Published - 4 Feb 2016 |
Abstract
The detailed modeling of soil-structure interaction is often neglected in simulation codes for offshore wind energy converters. This has several causes: On the one hand, soil models are in general sophisticated and have many degrees of freedom. On the other hand, for very stiff foundations the effect of soil-structure interaction could often be discounted. Therefore, very simple approaches are utilized or the whole structure is assumed to be clamped at the seabed. To improve the consideration of soil-structure interaction, a six-directional, coupled, linear approach is proposed, which contains an implementation of soil-structure interaction matrices in the system matrices of the whole substructure. The aero-hydro-servo-elastic simulation code FAST has been modified for this purpose. Subsequently, a 5. MW offshore wind energy converter with pile foundation is regarded in two examples.
Keywords
- Component-mode-synthesis, FAST, Offshore substructure, Soil-structure interaction
ASJC Scopus subject areas
- Engineering(all)
- Ocean Engineering
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In: Applied ocean research, Vol. 55, 04.02.2016, p. 141-150.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - An improved two-step soil-structure interaction modeling method for dynamical analyses of offshore wind turbines
AU - Häfele, Jan
AU - Hübler, Clemens
AU - Gebhardt, Cristian Guillermo
AU - Rolfes, Raimund
N1 - Funding information: We gratefully acknowledge the financial support of the German Federal Ministry for Economic Affairs and Energy (research project Gigawind life , FKZ 0325575A) and the European Commission (research projects IRPWind and Innwind.EU , funded from the European Union's Seventh Framework Programme for research, technological development and demonstration under grant agreement numbers 609795 and 308974 ) that enabled this work.
PY - 2016/2/4
Y1 - 2016/2/4
N2 - The detailed modeling of soil-structure interaction is often neglected in simulation codes for offshore wind energy converters. This has several causes: On the one hand, soil models are in general sophisticated and have many degrees of freedom. On the other hand, for very stiff foundations the effect of soil-structure interaction could often be discounted. Therefore, very simple approaches are utilized or the whole structure is assumed to be clamped at the seabed. To improve the consideration of soil-structure interaction, a six-directional, coupled, linear approach is proposed, which contains an implementation of soil-structure interaction matrices in the system matrices of the whole substructure. The aero-hydro-servo-elastic simulation code FAST has been modified for this purpose. Subsequently, a 5. MW offshore wind energy converter with pile foundation is regarded in two examples.
AB - The detailed modeling of soil-structure interaction is often neglected in simulation codes for offshore wind energy converters. This has several causes: On the one hand, soil models are in general sophisticated and have many degrees of freedom. On the other hand, for very stiff foundations the effect of soil-structure interaction could often be discounted. Therefore, very simple approaches are utilized or the whole structure is assumed to be clamped at the seabed. To improve the consideration of soil-structure interaction, a six-directional, coupled, linear approach is proposed, which contains an implementation of soil-structure interaction matrices in the system matrices of the whole substructure. The aero-hydro-servo-elastic simulation code FAST has been modified for this purpose. Subsequently, a 5. MW offshore wind energy converter with pile foundation is regarded in two examples.
KW - Component-mode-synthesis
KW - FAST
KW - Offshore substructure
KW - Soil-structure interaction
UR - http://www.scopus.com/inward/record.url?scp=84954219173&partnerID=8YFLogxK
U2 - 10.1016/j.apor.2015.12.001
DO - 10.1016/j.apor.2015.12.001
M3 - Article
AN - SCOPUS:84954219173
VL - 55
SP - 141
EP - 150
JO - Applied ocean research
JF - Applied ocean research
SN - 0141-1187
ER -