RT Book, Section
T1 On the assessment of extreme forces on a floating spar wind turbine
A1 Nava, V.
A1 Soares, C. Guedes
A1 Arena, F.
AB A model based on the Quasi-Determinism theory is used in this paper to evaluate the most probable extreme excitations and their time histories on a 3-degree-of-freedom (i.e. surge, heave and pitch motions) model of a floating spar-type 5 MW wind turbine. Numerical simulations of forces in the time domain on the hull and tower of the structure have been carried out using FAST, accounting for the hydrodynamic characteristics of the floater by means of WAMIT. Sea wave forces and joint wave and wind forces have been calculated, under the hypothesis of typical wave surface elevation and wind velocity power density functions. In particular, different case studies have been chosen accounting for operational conditions of significant wave height and wind speed in a site in the Atlantic Ocean. An approach based on the Quasi-determinism theory is then used in order to assess, for each case study, the time history of all the components of the excitations when the maximum of one component of the forces occurs. Studies about the validity of the model and the qualitative and quantitative anomaly of the simulations with respect to the herein presented approach are also included.
PB CRC Press
SN 9781138001244
SN 9781482233001
YR 2013
FD 2013-01-01
LK https://hdl.handle.net/11556/1583
UL https://hdl.handle.net/11556/1583
LA eng
NO Nava , V , Soares , C G & Arena , F 2013 , On the assessment of extreme forces on a floating spar wind turbine . in Developments in Maritime Transportation and Exploitation of Sea Resources . CRC Press , pp. 933-942 .
NO Publisher Copyright: © 2014 by Taylor & Francis Group, LLC.
DS TECNALIA Publications
RD 29 sept 2024