| 非均匀流中立管涡激振动模型预测分析 |
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| 引用本文： | 徐万海,杜杰,余建星.非均匀流中立管涡激振动模型预测分析[J].海洋技术,2011,30(3):94-96. |
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| 作者姓名： | 徐万海 杜杰 余建星 |
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| 作者单位： | 天津大学建筑工程学院,天津,300072 |
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| 基金项目： | 国家重大专项“荔湾3-1气田工程设计、建造、安装技术”(2008ZX05056-03); 天津大学自主创新基金; 高等学校博士学科点专项科研基金-新教师基金课题(20100032120047) |
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| 摘 要： | 文中分析了非均匀流中,张紧式海洋立管的涡激振动,采用新的加速度耦合尾流振子模型作为预测细长海洋工程柔性结构的计算工具,将预测结果中的横向位移包络线及最大幅值与实验观测值、shear7软件计算值进行了对比,可以发现模型的计算结果与实验观测结果吻合得很好.
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| 关 键 词： | 立管 涡激振动 尾流振子模型 非均匀流 |
Prediction of Riser Vortex-induced Vibration in Non-uniform Flow |
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| XU Wan-hai,DU Jie,YU Jian-xing.Prediction of Riser Vortex-induced Vibration in Non-uniform Flow[J].Ocean Technology,2011,30(3):94-96. |
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| Authors: | XU Wan-hai DU Jie YU Jian-xing |
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| Affiliation: | XU Wan-hai,DU Jie,YU Jian-xing(School of Civil Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | The vortex induced vibration of top tensioned riser in non-uniform flow was investigated.A new acceleration coupling wake oscillator model was introduced,which was used as simple computational tool in predicting some aspects of VIV of long flexible structures subjected to non-uniform flow.The present predicted results,including transverse displacements and dominant modes,were compared to the experimental data and SHEAR7 results.It can be seen that the results obtained by present prediction model were closer... |
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| Keywords: | riser vortex induced vibration wake oscillator model non-uniform flow |
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