Abstract
The investigated floating body heaving along a fixed vertical guiding strut is a part of a wave-energy converter, which is an axisymmetric point absorber, utilises the relative heave motion between a float and a body submerged beneath the float. In order to analyse the amount of produced useful wave power from a given incident wave, not only quantitative information on the hydrodynamic parameters of the two-body wave-absorbing system is needed, but also on the friction parameters. In the present work these friction parameters are experimentally determined for three frequencies. Also computed results for hydrodynamic parameters are presented.