| 水体的晃动作用对渡槽自振频率的影响 |
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| 引用本文： | 彭维东,柴军瑞.水体的晃动作用对渡槽自振频率的影响[J].西北水电,2014(2):82-84. |
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| 作者姓名： | 彭维东 柴军瑞 |
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| 作者单位： | 西安理工大学水电学院,西安710048 |
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| 摘 要： | 渡槽作为一种输水建筑物,槽壳中的水体晃动作用会对渡槽的自振频率产生一定的影响,文章采用大型通用有限元软件ADINA对槽壳内无水、有1/2设计水深水的槽壳和有设计水深水的槽壳3种工况进行模态计算,并将3种工况下的频率进行对比分析,可以得出水体的晃动具有降低结构自振频率的特性。
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| 关 键 词： | 渡槽 流固耦合 模态分析 自振频率 振型 |
Impacts on Natural Vibration Frequency of Aqueduct by Water Shaking |
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| PENG Wei-dong,CHAI Jun-rui.Impacts on Natural Vibration Frequency of Aqueduct by Water Shaking[J].Northwest Water Power,2014(2):82-84. |
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| Authors: | PENG Wei-dong CHAI Jun-rui |
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| Affiliation: | (Institute of Water Resources and Hydroelectric Engineering, Xi＇an University of Technology, Xi＇an 710048, China) |
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| Abstract: | As a water transmission structure, shaking of water in the aqueduct duct may impact the natural vibration frequency of the aqueduct.By application of the general large finite element software of ADINA, modal calculations on the following three operating conditions are performed：in aqueduct duct, no water, water of 1/2 design depth and water of design depth respectively.Frequencies under the three operating conditions are compared and analyzed.It shows that the shaking of water features the reduction of the natural vibration frequency of structures. |
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| Keywords: | aqueduct coupling of stress field and seepage field modal analysis natural vibration frequency vibration modal |
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