| 水力式升船机竖井内水体的振动分析 |
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| 引用本文： | 张静红,徐雪源,胡亚安.水力式升船机竖井内水体的振动分析[J].水运工程,2017(10):21-24. |
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| 作者姓名： | 张静红 徐雪源 胡亚安 |
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| 作者单位： | 盐城工学院，江苏 盐城 224051,盐城工学院，江苏 盐城 224051；南京水利科学研究院，水文水资源与水利工程科学国家重点实验室，通航建筑物建设技术交通行业重点实验室，江苏 南京210029,南京水利科学研究院，水文水资源与水利工程科学国家重点实验室，通航建筑物建设技术交通行业重点实验室，江苏 南京210029 |
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| 摘 要： | 地震荷载下升船机系统内水体与浮筒间的耦合作用是影响升船机安全运行的一个难题。通过流体动力学模拟(CFD)方法,讨论在不同频率的正弦激励下升船机竖井内水体的振荡。结果表明:竖井的水体存在一个自振频率,此频率比相同径度、相同水深的矩形池的值大约10%,自振周期约为0.42s;竖井水体的自振频率基本不随高度变化。
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| 关 键 词： | 水力浮动式升船机 单竖井模型 流动模拟 自振频率 |
Vibration analysis of water body in pontoon of hydraulic ship lift |
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| ZHANG Jing-hong,XU Xue-yuan and HU Ya-an.Vibration analysis of water body in pontoon of hydraulic ship lift[J].Port & Waterway Engineering,2017(10):21-24. |
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| Authors: | ZHANG Jing-hong XU Xue-yuan and HU Ya-an |
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| Institution: | Yancheng Institute of Technology,Yancheng 224051,China,Yancheng Institute of Technology,Yancheng 224051,China;Nanjing Hydraulic Research Institute,State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Key Laboratory of Navigation Structure Construction Technology,Ministry of Transport,PRC,Nanjing 210029,China and Nanjing Hydraulic Research Institute,State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Key Laboratory of Navigation Structure Construction Technology,Ministry of Transport,PRC,Nanjing 210029,China |
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| Abstract: | The coupling between water and buoys in ship lift system under earthquake loading is a difficult problem affecting ship lift safety operation.Using fluid dynamics simulation (CFD) method,we discuss the water oscillation in the shaft of ship lift at different frequencies of sine excitation.The result shows that there exists a natural frequency of water in the shaft,which is greater 10% than the one of the rectangular pool with the same size and the same water depth,the natural vibration period is about 0.42s.The natural frequency of shaft water basically does not change with height. |
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| Keywords: | hydro-floating ship lift single shaft model flow simulation natural frequency |
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