The effect of internal fluid on the response of vortex-induced vibration of marine risers

被引：0
|
作者：
Guo, HY [1 ]
Wang, YB [1 ]
Fu, Q [1 ]
机构：
[1] Ocean Univ China, Coll Engn, Qingdao 266071, Peoples R China
来源：
CHINA OCEAN ENGINEERING | 2004年 / 18卷 / 01期
关键词：
marine riser; internal fluid; vortex-induced vibration; dynamic response;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Based on Iwan's wake oscillator model developed with the classical van der Pot equation, the differential equation for the response of the vortex-induced vibration (VIV) of the riser considering the effect of the internal flowing fluid and the external marine environmental condition is derived. The effect of the internal flowing fluid on the response of VIV of the riser is studied by means of the Finite Element Method. The results show that the effect of the internal fluid velocity on the VIV of the riser is strong when the natural frequency of the riser is close to the vortex shedding frequency. In addition, the increase of the top tension can decrease the sensitivity of the riser to the internal fluid velocity.
引用
收藏
页码：11 / 20
页数：10
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