Hybrid computer simulation of a moored buoy

A mathematical simulation technique was developed which predicts the dynamic response of a single scoped mooring line holding a buoy in deep water. The buoy was subjected to typical ocean wave forces. The basic partial differential equations were obtained by considering the conservation of mass and momentum in the normal and tangential directions of a small element of the line. These partial differential equations were then solved on the hybrid computer by applying the method of continuous space-discrete time. The boundary conditions required that zero displacement occurred at the anchor; the upper end of the line was both stressed and displaced as the buoy followed the surface.