Abstract
OpenFAST is an open-source, physics-based engineering tool applicable to the load analysis of land-based and offshore wind turbines, including floating offshore wind turbines. The substructure for a floating wind turbine has historically been modeled in OpenFAST as a rigid body with hydrodynamic loads lumped at a point, which enabled the tool to predict the global response of the floating substructure but not the structural loads within its individual members. This limitation is an impediment to designing floating substructures—especially newer designs that are more streamlined, flexible, and cost-effective. This paper presents the development plan of new capabilities in OpenFAST to model floating substructure flexibility and member-level loads, including the functional requirements and modeling approaches needed to understand and apply them correctly.
Original language | American English |
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Number of pages | 8 |
DOIs | |
State | Published - 2019 |
Event | ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019 - St. Julian's, Malta Duration: 3 Nov 2019 → 6 Nov 2019 |
Conference
Conference | ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019 |
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Country/Territory | Malta |
City | St. Julian's |
Period | 3/11/19 → 6/11/19 |
Bibliographical note
See NREL/CP-5000-74380 for preprintNREL Publication Number
- NREL/CP-5000-76105
Keywords
- Aero-hydro-servo-elastics
- Floating offshore wind turbine (FOWT)
- Functional requirements
- Member-level loads
- OpenFAST
- Substructure flexibility