RT Journal Article T1 On intermediate-scale open-sea experiments on floating offshore structures: Feasibility and application on a spar support for offshore wind turbines A1 Ruzzo, Carlo A1 Fiamma, Vincenzo A1 Collu, Maurizio A1 Failla, Giuseppe A1 Nava, Vincenzo A1 Arena, Felice AB Experimental investigation of floating structures represents the most direct way for achieving their dynamic identification and it is particularly valuable for relatively new concepts, such as floating supports for offshore wind turbines, in order to fully understand their dynamic behaviour. Traditional experimental campaigns on floating structures are carried out at small scale, in indoor laboratories, equipped with wave and wind generation facilities. This article presents the results of an open-sea experimental activity on a 1:30 scale model of the OC3-Hywind spar, in parked rotor conditions, carried out at the Natural Ocean Engineering Laboratory (NOEL) of Reggio Calabria (Italy). The aim of the experiment is two-fold. Firstly, it aims to assess the feasibility of low-cost, intermediate-scale, open-sea activities on offshore structures, which are proposed to substitute or complement the traditional indoor activities in ocean basins. Secondly, it provides useful experimental data on damping properties of spar support structures for offshore wind turbines, with respect to heave, roll and pitch degrees of freedom. It is proven that the proposed approach may overcome some limitations of traditional small-scale activities, namely high costs and small scale, and allows to enhance the fidelity of the experimental data currently available in literature for spar floating supports for offshore wind turbines. SN 0951-8339 YR 2018 FD 2018-09 LK https://hdl.handle.net/11556/3350 UL https://hdl.handle.net/11556/3350 LA eng NO Ruzzo , C , Fiamma , V , Collu , M , Failla , G , Nava , V & Arena , F 2018 , ' On intermediate-scale open-sea experiments on floating offshore structures : Feasibility and application on a spar support for offshore wind turbines ' , Marine Structures , vol. 61 , pp. 220-237 . https://doi.org/10.1016/j.marstruc.2018.06.002 NO Publisher Copyright: © 2018 Elsevier Ltd DS TECNALIA Publications RD 31 jul 2024