| 波流作用下悬浮隧道的涡激动力响应 |
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| 引用本文： | 麦继婷,罗忠贤,关宝树.波流作用下悬浮隧道的涡激动力响应[J].铁道学报,2005,27(1):102-105. |
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| 作者姓名： | 麦继婷 罗忠贤 关宝树 |
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| 作者单位： | 西南交通大学,土木工程学院,四川,成都,610031 |
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| 摘 要： | 将单跨悬浮隧道简化成简支梁,利用梁的弯曲振动方程,在考虑结构粘性阻尼和非线性流体阻尼的条件下,采用伽辽金法和数值积分法,对悬浮隧道在波流作用下的涡激动力响应进行了计算,分析了隧道断面形式、尺寸及放置深度对悬浮隧道涡激谐振的影响。
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| 关 键 词： | 悬浮隧道 波流 涡激振动 动力响应 |
| 文章编号： | 1001-8360(2005)01-0102-04 |
| 修稿时间： | 2003年11月4日 |
The Vortex-Excited Dynamic Response for a Submerged Floating Tunnel under the Combined Wave and Current Effect |
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| MAI Ji-ting,LUO Zhong-xian,GUAN Bao-shu.The Vortex-Excited Dynamic Response for a Submerged Floating Tunnel under the Combined Wave and Current Effect[J].Journal of the China railway Society,2005,27(1):102-105. |
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| Authors: | MAI Ji-ting LUO Zhong-xian GUAN Bao-shu |
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| Abstract: | A free span of a submerged floating tunnel (an SFT) is taken as a simple beam. On considering the conditions of the non-linear fluid damping and the structure viscous damping, the vortex-excited dynamic response for an SFT under the combined wave and current effect is analyzed by virtue of the bending vibration function on simple beam and by means of Galerkin Method and numerical integration. In the analysis the focus is set on the influence of the tunnel sections shape and size and the depth of the tunnel under water surface upon the vortex-excited vibration of the tunnel proper. |
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| Keywords: | submerged floating tunnel wave and current vortex-excited vibration dynamic response |
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