Accession Number : AD0786188

Title :   Mechanics of Cable Mooring Systems. Volume VIII. The Dynamic Response of Cable Arrays Subject to Large Current Induced Displacements.

Descriptive Note : Final rept. Nov 71-Feb 73,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION COASTAL AND OCEAN ENGINEERING DIV

Personal Author(s) : Nuckolls,Charles E. ; Dominguez,Richard F.

Report Date : FEB 1973

Pagination or Media Count : 77

Abstract : A technique has been developed by means of which the rigid-body response of a bi-moored cable system to various dynamic excitations encountered during deployment and operation can be predicted. The solution technique couples the method of imaginary reactions for solving the basic cable problem with the use of the phase-plane gamma method for solving the rigid-body equations of motion. The procedure which has been developed here was first applied to a simple model which was given initial conditions but no excitation. Its response compared favorably with an experimental observation, although showing an apparent discrepancy in the modeling of the drag forces. A typical prototype system was also analyzed. Its response to both in-plane and out-of-plane current profiles are presented. (Author)

Descriptors :   *Mooring, *Deep water, *Mechanical cables, *Parametric analysis, Hydrodynamics, Buoyancy, Dynamic loads, Dynamic response, Elastic properties, Hydrodynamic codes, FORTRAN, Computer programs

Subject Categories : Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE