LINEAR STABILITY APPROACH TO EXPLAIN LOCK-IN TRANSITION AND TIME SHARING IN VORTEX-INDUCED VIBRATIONS OF SLENDER STRUCTURES

被引：0
|
作者：
Violette, Remi
Szydlowski, Julien
de Langre, Emmanuel
机构：
来源：
OMAE 2009, VOL 5 | 2009年
关键词：
WAVES;
D O I：
暂无
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
In this paper, we use a linearized version of a wake oscillator model in order to understand VIV of flexible structures. By a simple analytical development on the stability of an infinite cable/wake system, we demonstrate the existence a temporal instability. The theoretical study is pushed further to finite structure, a tensioned cable, for which modes frequency, amplitude growth rate in time and velocity range of instability are easily derived. The developed concepts are used to explain experimentally observed behaviours of a low flexural rigidity tensioned beam undergoing VIV.
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收藏
页码：869 / 876
页数：8
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