Fully Coupled Response Simulations of Theme Offshore Structures. In Water Depths of Up to 10,000 Feet

Abstract

Fully coupled large amplitude simulations of theme offshore structures in water depths of up to 10,000 feet are studied. The linear and slow-drift responses and the mooring-line/tendon dynamic tension of a Spar and a TLP in wind, waves and currents are presented. Hydrodynamic computations for the linear and second-order surface wave problems are carried out in the frequency domain by accurate and efficient solution techniques. Motion simulations are carried out in the time domain using efficient FFT summation of linear and quadratic time series coupled with a nonlinear solution algorithm for the treatment of the dynamic response of mooring lines, risers and tethers.