Ces travaux ont été menés dans le cadre du projet WEAMEC HeLoFOW : Le projet HeloFOW vise à développer un solveur hydro-élastique pour le calcul des charges structurelles des fondations d’éolienne flottante.
Le projet HeLoFOW a été réalisé dans le cadre du WEAMEC et avec le financement de la Région Pays de la Loire et du Fond Européen FEDER.
Résumé de la publication
This paper presents an original contribution to the coupled hydroelastic simulation of offshore wind turbines foundations. A non-linear coupled simulation tool has been developed to calculate the response of these systems. The hydrodynamic loads are computed by the non-linear potential flow solver WSCN, developed at Centrale Nantes and based on the weak-scatterer theory. The response of the structure is calculated with a finite element analysis tool using an Euler-Bernoulli beam model. The two solvers are tightly coupled. A first case study is presented here. It consists of a uniform monopile foundation in regular waves. Numerical simulations are compared to results obtained with the SIMA software, which uses Morison equation and non-linear wave kinematics. The two simulation tools show a very good agreement
in a series of regular waves up to the third-order load harmonic. Higher-order harmonics appear with WSCN in steep waves, which are not computed by SIMA.