Hassan, M.A.A.A. and Guedes Soares, C. (2021), “Installation of pre-Assembled offshore floating wind turbine using a floating vessel”, Developments in Renewable Energies Offshore, Guedes Soares, C. (Ed.), Taylor and Francis, London, UK, pp. 461-468

For floating wind turbines, it is only possible to use floating vessel if on site installation is not feasible since it requires large water depth for the vertical assembly operation. Therefore, installation cost and time are very crucial factors for future development of floating wind turbine. The current work examines a novel installation concept using a floating vessel. The floating vessel is designed to be capable of transporting of at least three tower-nacelle-rotor assemblies and perform the offshore installations. The substructure considered in the current study is floating spar. During installation, large horizontal motions between the tower bottom and the spar top can lead to unsuccessful mating operation. In order to control the horizontal motions between the tower and the spar, a motion compensation gripper will be used to connect both structures. Time domain simulations are performed for the coupled system to evaluate gripper forces, mooring forces and relative motions between both structures.

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