Abstract
In the floating offshore wind turbine demonstration project funded by the Ministry of the Environment, a spar-type floating offshore wind turbine equipped with a 2MW wind turbine has been installed offshore Kabashima, Goto city, and the offshore test has been carried out since October 2013. For structural design of the facility, the design loads have been determined from the response analysis results in time domain based on dynamic simulations for storm and power generation conditions. In this paper, an overview of the structural design of the facility such as how to set the design natural environment conditions, design load cases, load analysis method used in the structural design, structural analysis technique, fatigue analysis, mooring analysis, etc., is introduced.
