| 考虑流固耦合的大型渡槽动力特性计算 |
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| 引用本文： | 徐伟,陈淮,王博,徐建国.考虑流固耦合的大型渡槽动力特性计算[J].水利水电技术,2004,35(4):20-22. |
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| 作者姓名： | 徐伟 陈淮 王博 徐建国 |
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| 作者单位： | 1. 郑州大学,工学院,河南,郑州,450002
2. 大连理工大学,土木工程学院,辽宁,大连,116024 |
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| 基金项目： | 河南省高校杰出科研人才创新工程(2003KYCX011)，河南省科技攻关资助项目(0224370025). |
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| 摘 要： | 为计算大型渡槽考虑流固耦合的动力特性，以Housner理论为基础，建立了考虑流固耦合的大型渡槽薄壁梁段单元的动力分析模型，利用此模型编写计算机程序，计算了南水北调中线工程某大型渡槽结构在多种工况下的自振频率和振型，计算结果表明，渡槽槽内水体与槽身的动力耦合对渡槽结构的自振频率和振型影响显著，在对大型渡槽结构进行动力特性计算时，采用考虑相应水位的流固耦合模型比较符合渡槽结构的实际情况。
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| 关 键 词： | 大型渡槽 流固耦合 振型 Housner理论 自振频率 动力耦 动力耦合 |
| 文章编号： | 1000-0860(2004)04-0020-03 |
| 修稿时间： | 2003年10月2日 |
The dynamic characteristic calculation of large-scale aqueducts with its fluid-solid coupling |
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| XU Wei ,CHEN Huai ,WANG Bo ,XU Jian-guo.The dynamic characteristic calculation of large-scale aqueducts with its fluid-solid coupling[J].Water Resources and Hydropower Engineering,2004,35(4):20-22. |
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| Authors: | XU Wei CHEN Huai WANG Bo XU Jian-guo |
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| Affiliation: | XU Wei 1,CHEN Huai 1,WANG Bo 1,XU Jian-guo 2 |
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| Abstract: | The paper discusses,based on Housner theory,the creation of a dynamic model for analyzing thin-wall beam sec-tion elements for large-scale aqueducts,taking into consideration fluid-solid coupling.The model was used to develop computer programs for calculating,under various conditions,the free vibration frequency and pattern of a large aqueduct structure in the south to north water transfer project in China.The results of calculation have shown that the coupling of water body within the aqueduct and channel dynamic coupling will have significant effects on its free vibration frequency and pattern.When calculat-ing dynamic characteristics of a large aqueduct structure,the model which takes into account the fluid-solid coupling under corresponding water levels would conform to the actual situations. |
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| Keywords: | large-scale aqueduct fluid-solid coupling frequency vibration pattern |
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