Abstract
Abstract A response-based time domain structural analysis method for offshore floating platforms has been studied and validated. Compared to the conventional load-based and simplified method, the response base method can evaluate structural strength and fatigue damage with higher accuracy, taking into account irregular waves, non-linear environmental loadings, phasing between different loads, non-linear motion responses, and non-linear mooring and riser loadings. The present study examines the structural assessment of the entire substructure and the turbine tower to substructure connection of a Floating Offshore Wind Turbine (FOWT) platform using a response-based time domain structural analysis. Finite Element (FE) models are constructed for the entire FOWT, and corresponding load components are mapped to the FE model. A fully coupled aero-hydro-servo-elastic analysis software, MLTSIM-OpenFAST, is used to calculate dynamic responses of a FOWT in the time domain. and used for the life cycle response analysis of a FOWT with 25 years of weather data. All load components are synthesized at every instantaneous time step and converted to response-based stresses. This methodology efficiently and more accurately determines the stress distribution for different load cases which is useful for both new design and digital twin for integrity management to provide quick structural strength and fatigue damage assessment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
