Dynamic response of floating substructure of spar-type offshore wind turbine with catenary mooring cables

An investigation of the effects of wind-induced inclination on floating wind turbine dynamics: heave plate excursion

“…FWT dynamic response under the action of met-ocean loads has been extensively investigated in recent years, leading to development of coupled models able to treat simultaneous hydrostatic, hydrodynamic, and aerodynamic loading on the structure, taking into account its deformability in certain cases. Most work to date adopts a fully linear approach to potential wave hydrodynamics assuming small amplitude waves and motion about the unexcited configuration -see for example Karimirad and Moan (2012), Jeon et al (2013), Sethuraman and Venugopal (2013), and Wang and Sweetman (2013). A few studies implement updated wetted surface meshing to incorporate the geometric non-linearity due to quasi-steady displacement of a FWT under the wind's action; this allows to integrate the dynamic pressure associated to the Froude-Krylov, diffraction, and radiation problems over the displaced wetted surface, effectively re-linearising potential hydrodynamics about a more representative mean position.…”

Design of Structure of Tension Leg Platform for 6 MW Offshore Wind Turbine Based On Fem Analysis

“…With estimates of the analysis results, that for waters deeper than 50 meters, cost-effective solution is the use of floating structures. There are already solutions of floating structures, which are going to be used on an industrial scale, mainly buoyancy stabilized [8] or ballast stabilized [9,10] structures. In recent years, there are more and more publications including computational analysis of TLP-type of foundation systems for offshore wind turbines [11,12,13] The works presented in this article were carried out under the "WIND-TU-PLA" acronym project from the MARTEC II Era-Net program.…”

A 3d Isogeometrical Boundary Element Analysis for Non-Linear Gravity Wave Propagation

“…These models have been applied to simulated tsunami generation and [1] overturning waves [2][3][4], to design breakwaters [5,6], to predict the wave pressure impact on structures [7], or to study radiation and diffraction waves produced by a wave-maker [8][9][10][11]. Nowadays, because of the increasing interest on the ocean renewable energy, in which the generation systems are installed near-shore or off-shore, new applications of such models are being used to study the fluid-structure interaction considering the effect of the waves [12][13][14][15][16].…”