WAVE RADIATION BY A DEEP SUBMERGED CYLINDER WITH APPLICATION TO OCEANSTRUCTURE

The radiation problem for a deep submerged cylinder is analysed and an asymptotic expression, uniformly valid in the whole range of frequenc ies, is derived for the radiation damping and exciting force. The obta ined expression is a natural extension of the inertia term in the well known Morison's formula and it may be useful in the analysis of certa in ocean structures such as a tension leg platform, for example. In pa rticular it makes it possible to define a geometry tuned to have null excitation at some desired frequency.