A Computer Analysis Of a Tri-Moored Buoy Structure with an Internally Redundant Horizontal Structural Element.

摘要

This report is concerned with the analysis and computer simulation of a tri-moored oceanic buoy structure having a near-horizontal cable connected between two of the three main legs. The Method of Imaginary Reactions is used in conjunction with the Method of Successive Approximations to determine the equilibrium configuration of the cable array. A special technique is developed to extend the above methods to include cable arrays with one internally redundant loop. Computer search routines are developed to ensure convergence to the solution for equilibrium positions of the cable array. The analysis permits the inclusions of discrete elements and floating devices distributed along all cables. Expressions are derived in detail for the hydrodynamic forces. Both tangential and normal drags are included in the calculation of these forces; however, the forces induced by wave action are not considered. A computer program for implementing the analysis is included.