Response of surface buoy moorings in steady and wave flows

Abstract

A numerical model has been developed to evaluate the dynamics of surface buoy mooring systems under wave and current loading. System tension response and variation of tension in the mooring line at various depths have been evaluated for deep water as well as for shallow water moorings having three different damping ratios equal to 0.1, 0.2 and 0.3. In all cases considered, as the damping ratio increases the mean square tension response decreases. Tension response spectra of deep water mooring seem to show a narrow band behaviour for all the three damping ratios considered. Where as in the case of shallow water mooring tension response of the system which is narrow band for xi = 0.2 and 0.3