Dynamic Analysis of Loop Formation in Cables under Compression

摘要

This paper contributes a dynamic model for cable loop formation thathas previously been studied using static (equilibrium) analyses alone.The cable is modeled as a one-dimensional elastic continuum thataccounts for tension, two-axis bending, and torsion. External forcesincluding weight, buoyancy, fluid drag and inertia are included. Thethree-dimensional shape of the cable is predicted, as time evolves, by anumerical algorithm based on separate finite differencing in time and inspace. The dynamics of loop formation and loop release is analyzed fordifferent types of supports including simple (spherical) and fixedsupports.