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RESEARCH PAPERS: Offshore Mechanics

The Onset of Chaotic Motions of a Moored Semi-Submersible

[+] Author and Article Information
S. R. Bishop, L. N. Virgin

London Centre for Marine Technology, Department of Civil Engineering, University College London, London, U.K.

J. Offshore Mech. Arct. Eng 110(3), 205-209 (Aug 01, 1988) (5 pages) doi:10.1115/1.3257052 History: Received June 26, 1987; Online October 30, 2009

Abstract

This paper describes a combined numerical and geometric approach to study the dynamic behavior 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.

Copyright © 1988 by ASME
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