Publications [#319936] of Lawrence N. Virgin

Papers Published

1. Bishop, SR; Virgin, LN, ONSET OF CHAOTIC MOTIONS OF A MOORED SEMI-SUBMERSIBLE., Proceedings of the International Offshore Mechanics and Arctic Engineering Symposium, vol. 2 (January, 1987), pp. 319-323
   (last updated on 2023/06/01)

   Abstract:
   This paper describes a combined numerical and geometric approach to study the dynamic behaviour of a moored semi-submersible based on solutions of the nonlinear differential equation used to model the system. Complex features including competing steady-states, subharmonic resonances and chaos are shown to be typical responses in regular seas. A qualitative overview is used to classify the computer data generated from direct time simulation with the aim of illustrating the inadequacies and limitations of a linear or a purely analytical approach.