Fatigue assessment in FPSO mooring design using moment based Hermit Approximation

Hrrruite models are verified to describe analytically thr, statistics of nonlinear responses based on the r+ sponsc mpan, standard deviat,ion, skewness and kur- t,osis. Conlparison are made between the numerical fittings and data obtained from a nonlinear mooring simulation programme obtained for moored 250 Kdwt FPSO. Good agreements are obtained down to the lowest lrvrls of probability in the simulations.