Approximate Solutions for Cables under Generalized Hydrodynamic Loadings
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 119, Issue 3
Abstract
Approximate closed‐form solutions are given for the configuration of a cable under generalized hydrodynamic loading, in which the weight may take on any value and the drag is composed of arbitrary proportions of friction and pressure components. The basis of the approximation is a set of solutions for a cable with nonzero weight under pure friction drag. It is shown that by using a simple asymptotic matching of these solutions with the exact value of the cable critical angle at large cable lengths, reasonable approximations are obtained for cables under a more general drag loading. The accuracy is further increased by replacing the actual weight‐to‐drag ratio by an effective ratio, which accounts for the drag loading through the critical angle. The resulting solutions are highly accurate (to better than two places) for cases in which the initial and critical angles lie in the same quadrant, and furnish useful estimates when these angles lie in different quadrants.
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Copyright © 1993 American Society of Civil Engineers.
History
Received: Aug 23, 1991
Published online: May 1, 1993
Published in print: May 1993
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