VORTEX-INDUCED VIBRATION OF MARINE CABLES: EXPERIMENTS USING FORCE FEEDBACK

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• 作者：Hover ; F. S. ; Miller ; S. N. ; Triantafyllou ; M. S.
• 刊名：Journal of Fluids and Structures
• 出版年：1997
• 期刊代码：187_08899746
• 类别：et
• 出版时间：April, 1997
• 卷：11
• 期：3
• 页码：307-326
• 文件大小：703 K

摘要

The problem of vortex-induced vibrations in flexibly mounted cylinders and marine cables is addressed using a new laboratory apparatus, which combines force-feedback with on-line numerical simulation of a modeled structure. We establish correlation with published single-mode, free vibration data, and give results for a dynamic model having the principal characteristics of inclined cables, i.e. pairs of weakly coupled modes and crossover avoidance. While the fluid lift properties of the single-mode and multiple-mode systems are qualitatively similar, the spectra differ in several fundamental ways, suggesting distinct wake interaction processes.