Hydrodynamic Damping on Flexible Cylinders in Sheared Flow
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 115, Issue 2
Abstract
The role of hydrodynamic sources of damping in regulating the flowinduced vibration response of flexible cylinders has frequently been a source of disagreement between investigators in the field. A hydrodynamic damping model is proposed in this paper for finite length cylinders and for cables, which effectively behave as if they were of infinite length. Measured and predicted damping for a strumming cable in a sheared flow are presented. The experimental results are from a flow‐induced vibration experiment conducted in a mill canal with a width of 58 ft (17.7 m). Variable headgates allowed a controllable horizontal shear to be produced. Hydrodynamic damping is shown to be one to two orders of magnitude more important than structural damping in sheared flow conditions.
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References
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 115 • Issue 2 • March 1989
Pages: 154 - 171
Copyright
Copyright © 1989 ASCE.
History
Published online: Mar 1, 1989
Published in print: Mar 1989
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