Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011 |
| Pages | 284-290 |
| Number of pages | 7 |
| Publication status | Published - 19 Jun 2011 |
| Externally published | Yes |
| Event | 21st International Offshore and Polar Engineering Conference, ISOPE-2011 - Maui, HI, United States Duration: 19 Jun 2011 → 24 Jun 2011 |
Publication series
| Name | Proceedings of the International Offshore and Polar Engineering Conference |
|---|---|
| ISSN (Print) | 1098-6189 |
| ISSN (electronic) | 1555-1792 |
Abstract
Offshore wind turbines (OWT) are currently designed and certified based on loads calculated in so called aero-servo-hydro-elastic simulation tools. Large sets of time domain simulations are run, especially in the certification process. In ADCoS-Offshore - the software used in this study - branched support structures are modeled with finite element (FE) beam members. These structures usually consist of hollow steel tubes connected by joints. As the representation of the joints using FE beam members is not too precise, ADCoS-Offshore was extended with a substructuring feature to model the joints more accurately. In this paper, a model of a 5MWOWT that includes a "basic" support structure model, and an OWT model incorporating superelements to represent the support structure's joints are briefly described. Furthermore, a heavily reduced fatigue load case set based on the respective standards combined with statistical data for a given site is presented. Based on these load cases and with both, the basic beam model and the model incorporating superelements, the simulations are performed. Results are compared mainly in terms of post processed fatigue parameters and interpreted. Finally, conclusions are drawn indicating the necessary model fidelity for the fully-coupled simulations of this type of turbine under the given conditions.
Keywords
- ADCoS-Offshore, Fatigue loads, Fully coupled simulation, Joint flexibility, Offshore structure, Offshore wind turbine, Steel support structures, Substructuring, Superelement
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanical Engineering
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Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011. 2011. p. 284-290 (Proceedings of the International Offshore and Polar Engineering Conference).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Fully-coupled wind turbine simulation including substructuring of support structure components
T2 - 21st International Offshore and Polar Engineering Conference, ISOPE-2011
AU - Vorpahl, Fabian
AU - Reuter, Andreas
PY - 2011/6/19
Y1 - 2011/6/19
N2 - Offshore wind turbines (OWT) are currently designed and certified based on loads calculated in so called aero-servo-hydro-elastic simulation tools. Large sets of time domain simulations are run, especially in the certification process. In ADCoS-Offshore - the software used in this study - branched support structures are modeled with finite element (FE) beam members. These structures usually consist of hollow steel tubes connected by joints. As the representation of the joints using FE beam members is not too precise, ADCoS-Offshore was extended with a substructuring feature to model the joints more accurately. In this paper, a model of a 5MWOWT that includes a "basic" support structure model, and an OWT model incorporating superelements to represent the support structure's joints are briefly described. Furthermore, a heavily reduced fatigue load case set based on the respective standards combined with statistical data for a given site is presented. Based on these load cases and with both, the basic beam model and the model incorporating superelements, the simulations are performed. Results are compared mainly in terms of post processed fatigue parameters and interpreted. Finally, conclusions are drawn indicating the necessary model fidelity for the fully-coupled simulations of this type of turbine under the given conditions.
AB - Offshore wind turbines (OWT) are currently designed and certified based on loads calculated in so called aero-servo-hydro-elastic simulation tools. Large sets of time domain simulations are run, especially in the certification process. In ADCoS-Offshore - the software used in this study - branched support structures are modeled with finite element (FE) beam members. These structures usually consist of hollow steel tubes connected by joints. As the representation of the joints using FE beam members is not too precise, ADCoS-Offshore was extended with a substructuring feature to model the joints more accurately. In this paper, a model of a 5MWOWT that includes a "basic" support structure model, and an OWT model incorporating superelements to represent the support structure's joints are briefly described. Furthermore, a heavily reduced fatigue load case set based on the respective standards combined with statistical data for a given site is presented. Based on these load cases and with both, the basic beam model and the model incorporating superelements, the simulations are performed. Results are compared mainly in terms of post processed fatigue parameters and interpreted. Finally, conclusions are drawn indicating the necessary model fidelity for the fully-coupled simulations of this type of turbine under the given conditions.
KW - ADCoS-Offshore
KW - Fatigue loads
KW - Fully coupled simulation
KW - Joint flexibility
KW - Offshore structure
KW - Offshore wind turbine
KW - Steel support structures
KW - Substructuring
KW - Superelement
UR - http://www.scopus.com/inward/record.url?scp=80052697153&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:80052697153
SN - 9781880653968
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 284
EP - 290
BT - Proceedings of the 21st (2011) International Offshore and Polar Engineering Conference, ISOPE-2011
Y2 - 19 June 2011 through 24 June 2011
ER -