The Hydrodynamic Interaction Between Two Cylindrical Bodies Floating In Beam Seas

An analysis is given of both wave- and motion-induced forces and moments on the individual bodies of rigidly connected twin cylinders performing three modes of motion in beam seas. The diffracted and radiated waves are evaluated and by the Haskind method the wave-exciting forces are determined. Furthermore, an analysis of the hydrodynamic interactions between two different cylindrical bodies floating freely in beam seas is also given and their relative heaving motions are evaluated. A description is given of the application of the strip method in evaluating the hydrodynamic forces and moments as well as the response motions of a twin-hull ocean platform in beam seas. Keywords: Hydrodynamic Interaction, Diffraction, and Radiation. Grant no. 2-35249