Vortex-induced vibration of pipes conveying fluid using the method of multiple scales

被引：10
|
作者：
Dai, Huliang
Wang, Lin [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Dept Mech, Wuhan 430074, Hubei, Peoples R China
来源：
THEORETICAL AND APPLIED MECHANICS LETTERS | 2012年 / 2卷 / 02期
基金：
中国国家自然科学基金;
关键词：
pipes conveying fluid; vortex-induced vibration; lock-in; steady-state responses; fluctuating lift;
D O I：
10.1063/2.1202206
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The nonlinear dynamics of supported pipes conveying fluid subjected to vortex-induced vibration is evaluated using the method of multiple scales. Frequency response portraits for different internal fluid velocities under lock-in conditions are obtained and the stability of steady-state responses is discussed. Results show that the internal fluid velocity has a prominent effect on the oscillation amplitude and that the steady-state responses incorporating unstable solutions in the lock-in region are also obtained. In addition, the effects of two kinds of fluctuating lift coefficients on the steady-state responses are compared with each other. (C) 2012 The Chinese Society of Theoretical and Applied Mechanics.
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页数：4
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