| 弧形闸门流激振动脉动压力HHT分析 |
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| 引用本文： | 瞿伟廉,刘少兵,王锦文,刘晶. 弧形闸门流激振动脉动压力HHT分析[J]. 武汉理工大学学报, 2006, 28(9): 68-71 |
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| 作者姓名： | 瞿伟廉 刘少兵 王锦文 刘晶 |
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| 作者单位： | 武汉理工大学土木工程与建筑学院,武汉,430070 |
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| 摘 要： | 介绍了新近提出的Hilbert-Huang变换（HHT）方法，并且采用该方法对典型水流脉动压力时域过程进行了平稳性检验。结果表明，在一定开启工况下，作用于闸门体的水流脉动压力可视为各态历经平稳随机过程，其特征量可应用随机函数理论及其谱分析获得。
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| 关 键 词： | 弧形闸门 流激振动 脉动压力 平稳性检验 Hilbert-Huang变换(HHT) |
| 文章编号： | 1671-4431(2006)09-0068-04 |
| 修稿时间： | 2006-03-17 |
HHT Analysis of Stochastic Fluctuant Pressure for Flow-induced Vibration in Radial Gate |
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| QU Wei-lian,LIU Shao-bing,WANG Jin-wen,LIU Jing. HHT Analysis of Stochastic Fluctuant Pressure for Flow-induced Vibration in Radial Gate[J]. Journal of Wuhan University of Technology, 2006, 28(9): 68-71 |
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| Authors: | QU Wei-lian LIU Shao-bing WANG Jin-wen LIU Jing |
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| Abstract: | A new method Hilbert-Huang transform(HHT) was introduced in this paper,and the stationarity of typical time domain data of stochastic fluctuant pressure was tested by using this method.The conclusion indicates that stochastic fluctuant pressure on radial gate can be treated as stationary random process going through all of states in the case of certain opening and the characteristic value can be obtained from random function theory and spectrum analysis. |
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| Keywords: | radial gate flow-induced vibration fluctuant pressure stationarity test Hilbert-Huang transform(HHT) |
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