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Investigations into the stability of an intact and damaged jack-up during a wet tow. Part 1: the model test programme

Standing, R.G. and Jackson, G.E. and Van Santen, J.A. and Mills, P.J. and Barltrop, N. (2001) Investigations into the stability of an intact and damaged jack-up during a wet tow. Part 1: the model test programme. Marine Structures, 14 (4-5). pp. 417-430. ISSN 0951-8339

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Abstract

This paper describes a model test investigation into the stability of a large jack-up during a wet tow in severe North Sea wind and waves. It describes the purpose of the tests, and the test programme itself, but does not include results or conclusions, which will be presented in a follow-up paper. The aim of the tests was to establish the limiting value of KG at which capsize occurred, to compare the area ratio, stability range and intercept angle in this condition with values predicted by a conventional stability analysis, and thus assess whether the stability criteria provide a satisfactory measure of the unit's ability to resist capsize. Tests were performed on the model in the intact condition, after major waterline damage in corner and side compartments, and after internal flooding.