Effect of the loss of tether stiffness on the behavior of a tension leg platform

Joglekar, Nitindra R. (1984) Effect of the loss of tether stiffness on the behavior of a tension leg platform. Masters thesis, Memorial University of Newfoundland.

[English] PDF (Migrated (PDF/A Conversion) from original format: (application/pdf)) - Accepted Version Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Download (23MB) [English] PDF - Accepted Version Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. (Original Version)

Abstract

A numerical model for the hydrodynamic analysis of a Tension Leg Platform has been implemented using strip theory. A computer algorithm has been developed using a beam elements for a large displacement nonlinear analysis of the cable network. -- A parametric study of the platform motion response and tension variations has been made for cases of loss in the cable stiffness. It has been shown that if the total tension remains constant, the surge motion will not be affected but the heave and pitch motions will be increased and tether tensions will vary significantly. The tether tensions are affected by the lateral cable dynamics.

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