Abstract
Design and analysis of wind turbines are performed using aero-servo-elastic tools that account for the nonlinear coupling between aerodynamics, controls, and structural response. The NREL-developed computer-aided engineering (CAE) tool FAST also resolves the hydrodynamics of fixed-bottom structures and floating platforms for offshore wind applications. This paper outlines the implementation of astructural-dynamics module (SubDyn) for offshore wind turbines with space-frame substructures into the current FAST framework, and focuses on the initial assessment of the importance of structural nonlinearities. Nonlinear effects include: large displacements, axial shortening due to bending, cross-sectional transverse shear effects, etc.
Original language | American English |
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Number of pages | 18 |
State | Published - 2013 |
Event | 32nd International Conference on Ocean, Offshore and Arctic Engineering - Nantes, France Duration: 9 Jun 2013 → 14 Jun 2013 |
Conference
Conference | 32nd International Conference on Ocean, Offshore and Arctic Engineering |
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City | Nantes, France |
Period | 9/06/13 → 14/06/13 |
NREL Publication Number
- NREL/CP-5000-57850
Keywords
- fast modeling
- jacket modeling
- offshore wind turbines
- substructure modeling