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水中悬浮隧道锚索在剪切流中的涡激响应
Vortex-induced vibration of submerged floating tunnel tethers in shear current
查看参考文献13篇
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文摘
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以Iwan改进的尾流振子模型为基础，给出了剪切流中水中悬浮隧道锚索横向涡激振动的工程分析方法，分析了悬浮隧道重浮比以及剪切流特性对锚索涡激响应的影响．计算结果表明，悬浮隧道重浮比的改变，使锚索各阶模态的频锁区域分布发生变化，从而改变了结构的涡激振动响应；剪切流陡度参数的增大会使锚索涡激响应的幅值减小，若使用均匀流场代替剪切流场计算悬浮隧道锚索的涡激振动，会过高估计其响应幅值． |
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其他语种文摘
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The engineering analysis method for vortex-induced transverse vibration of submerged floating tunnel （SFT） tether is presented, based on the modified wake oscillator model. The effects of specific gravity ratio and the shear current＇s characteristics on the vortex-induced vibration of tether are investigated. The calculated results show that the distribution of lock-in regions and the vortex-induced vibration of tether vary with the specific gravity ratios of SFT. The increase of the shear parameter makes the amplitude of vortex-induced vibration decrease. Furthermore, if the shear current is replaced by the uniform current to calculate the vortex-induced vibration of tether, its response amplitude may be overestimated. |
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来源
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中国科学院研究生院学报
,2007,24(3):351-356 【核心库】
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关键词
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水中悬浮隧道
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涡激响应
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尾流振子模型
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锚索
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阿基米德桥
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地址
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中国科学院力学研究所, 非线性力学国家重点实验室, 北京, 100080
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语种
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中文 |
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文献类型
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简报 |
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ISSN
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1002-1175 |
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学科
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公路运输 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:2886532
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参考文献 共
13
共1页
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