Abstract
The dynamic response of moored semi-submersibles to forces imposed on them by ice floes and bergy-bit/growler impacts is studied. Ice forces on the vertical columns of the semi-submersibles are determined using a strain rate, temperature, and ice-thickness-to-column-diameter ratio dependent force formulation. Three different analytical approaches are suggested for the solution of semi-submersible bergy-bit impact problems, and numerical results are obtained using the initial velocity approach. The semi-submersible chosen for numerical example is similar to the SEDCO 700 Series. The global and local structural responses are obtained for forces imposed on it by ice floes and bergy bits.
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