| 基于经验模态分解法的水工混凝土变形监测研究 |
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| 引用本文： | 叶伟,沈必洪,张奎红. 基于经验模态分解法的水工混凝土变形监测研究[J]. 浙江水利水电专科学校学报, 2010, 22(2): 10-13 |
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| 作者姓名： | 叶伟 沈必洪 张奎红 |
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| 作者单位： | 1. 浙江省青田县水文站,浙江,青田,323900
2. 浙江开化工业园区,浙江,开华,324300 |
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| 摘 要： | 经验模态分解法使信号分解具有唯一性又同时具有良好的局部化性质,一旦分解完毕,又可根据工程问题的要求灵活实现重构,现将经验模态分解法应用于水工混凝土变形监测分析,运用经验模态分解法对混凝土变形破坏趋势进行监测,并据此对水工混凝土加固效果进行评价.针对经验模态分解中的端点效应导致分解结果失真的情况,引入了窗函数法对端点进行抑制,有效地保证了水工混凝土分解结果的精度.
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| 关 键 词： | 水工混凝土 经验模态分解 变形监测 |
Deformation Monitoring of Hydraulic Concrete Based on Empirical Mode Decomposition |
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| YE wei,SHEN Bi-hong,ZHANG Kui-hong. Deformation Monitoring of Hydraulic Concrete Based on Empirical Mode Decomposition[J]. Journal of Zhejiang Water Conservancy and Hydropower College, 2010, 22(2): 10-13 |
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| Authors: | YE wei SHEN Bi-hong ZHANG Kui-hong |
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| Affiliation: | YE wei1,SHEN Bi-hong1,ZHANG Kui-hong2(1.Qingtian Hydrological Stations,Qingtian 323900,China,2.Kaihua Industrial Park,Kaihua 324300,China) |
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| Abstract: | Empirical mode decomposition method realizes the signals decode with uniqueness and localization and signals recode flexibly according to the engineering requirements.The paper discusses how to analyze hydraulic concrete deformation monitoring and how to conduct concrete deformation prediction by EMD method, and accordingly to evaluate the effect of hydraulic concrete reinforcement.The window function method is introduced in order to restrain the endpoint effect which results in the fuzzy decomposition caus... |
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| Keywords: | hydraulic concrete empirical mode decomposition deformation monitoring |
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