Assessing the Importance of Nonlinearities in the Development of a Substructure Model for the Wind Turbine CAE Tool FAST: Preprint

Research output: Contribution to conferencePaper

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 languageAmerican English
Number of pages18
StatePublished - 2013
Event32nd International Conference on Ocean, Offshore and Arctic Engineering - Nantes, France
Duration: 9 Jun 201314 Jun 2013

Conference

Conference32nd International Conference on Ocean, Offshore and Arctic Engineering
CityNantes, France
Period9/06/1314/06/13

NREL Publication Number

  • NREL/CP-5000-57850

Keywords

  • fast modeling
  • jacket modeling
  • offshore wind turbines
  • substructure modeling

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