Analysis of Deepwater Mooring System for a Semi-Submerged Drilling Platform

The computational analysis of the multi-point radiation moored system, which composed of mooring lines with buoys for a semi-submerged drilling platform working in deep water, is completed by use of the quasi-static method, dynamic method and matching approach for platform and mooring line-buoy systems in this paper. The motion equations for floating structures are solved by the Green function method with numerical panel approach and the mooring line-buoy kinetics and kinematics problem is formulated as a combined nonlinear initial-value and two-point boundary-value problem. Then, the motion equations both for floating structure and for mooring line-cable can be solved by use of the matching approach. Thus, the motion of the floating structure and buoys and the tension of the mooring line are determined.