| 钢悬链线的涡激振动分析 |
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| 引用本文： | 饶志标,付世晓,杨建民.钢悬链线的涡激振动分析[J].船舶力学,2011,15(3). |
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| 作者姓名： | 饶志标 付世晓 杨建民 |
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| 作者单位： | 上海交通大学海洋工程国家重点实验室,上海,200030;上海交通大学海洋工程国家重点实验室,上海,200030;上海交通大学海洋工程国家重点实验室,上海,200030 |
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| 基金项目： | Supported by the National High Technology Joint Reserch Program of China (Grant No.2008AA09A105-6) |
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| 摘 要： | 文章介绍了立管在不同流剖面下的涡激振动实验,然后给出了简支钢悬链线的静态方程和基于能量平衡原理的涡激振动频域预报理论.之后提出把钢悬链的参数转化为顶部张紧钻井隔水管的参数的思想.通过预报顶部张紧钻井隔水管的涡激振动响应,得到钢悬链线的涡激振动响应.文中还研究了不同的顶部预张力和不同流剖面对钢悬链线的涡激振动响应影响.结果表明立管的固有频率和模态数的关系足线性的,并且立管的均方根位移和激励的模态数不仅与流速的大小和变化范围有关,还与顶部预张力有关.
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| 关 键 词： | 涡激振动 钢悬链线 响应预测 |
Vortex-Induced Vibration Analysis of Steel Catenary Riser |
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| RAO Zhi-biao,FU Shi-xiao,YANG Jian-min.Vortex-Induced Vibration Analysis of Steel Catenary Riser[J].Journal of Ship Mechanics,2011,15(3). |
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| Authors: | RAO Zhi-biao FU Shi-xiao YANG Jian-min |
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| Institution: | RAO Zhi-biao,FU Shi-xiao,YANG Jian-min(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200030,China) |
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| Abstract: | The experiments of vortex induced vibrations under different current profiles are presented,which is followed by the equation of Steel Catenary Riser(SCR).Based on the energy balance principle,frequency domain theory is given to predict Vortex Induced Vibration(VIV) response of flexible riser.VIV response prediction of SCR is replaced by that of Top-Tensioned Riser(TTR).The VIV response predictions of SCR under different top-tension and different current profiles are carried out.It is found that the natural... |
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| Keywords: | Vortex-Induced Vibration(VIV) Steel Catenary Riser(SCR) response prediction |
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