改进Hilbert-Huang 变换在钢管混凝土
脱空检测中的应用

doi:10.3969/j.issn.1674-0696.2013.06.05

重庆交通大学学报（自然科学版） ›› 2013, Vol. 32 ›› Issue (6): 1119-1121.DOI: 10.3969/j.issn.1674-0696.2013.06.05

改进Hilbert-Huang 变换在钢管混凝土脱空检测中的应用

韩西¹,王吉¹,钟厉², 向丽¹

1.重庆交通大学士木建筑学院，重庆 400074;2.震庆交通大学机电与汽车t 程学院，重庆 400074

收稿日期:2012-05-22 修回日期:2013-01-27 出版日期:2013-12-15 发布日期:2015-01-22
作者简介:韩西(1964—)，男，重庆人，教授，博士，主要从事结构力学、振动工程方面的研究。E-mail:xihan@cquc.edu.cn
基金资助:
重庆市科技攻关计划项目(CSCT009AB6135 )

Application of the Improved Hilbert-Huang Transformation to CFST Cavity Detection

Han Xi ¹，Wang Ji¹ , Zhong Li², Xiang Li¹

1.School of Civil Engineering & Architecture , Chongqing Jiaotong University , Chongqing 400074 , China; 2.School of Mechatronics & Automotive Engineering, Chongqing Jiaotong University , Chongqing 400074 , China

Received:2012-05-22 Revised:2013-01-27 Online:2013-12-15 Published:2015-01-22

摘要/Abstract

摘要： 在钢管混凝土脱空检测试验中，采用Hilbert-Huang变换对声音这种非线性非平稳信号进行采集分析。原信号先经验模态分解为固有模态IMF分量，然后对IMF分量进行Hilbert变换，但是经验模态分解出的IMF分量中可能有一部分的虚假分量。利用Kolmogorov-Smirnov拟合优度检验法，来判别出分解后的每一个IMF分量与原信号概率分布的相似概率，去除掉虚假分量，采用相似概率比较高的IMF分量，最后得出合理的Hilbert边际谱，正确反映了结构的局部特性，有效地实现了脱空的检测。

关键词: Kolmogorov-Smimov检验法, Hilbert-Huang变换, 声音信号, 概率分布

Abstract: In CFST cavity detection test , Hilbert-Huang transformation was used to collect and analyze the sound , which was nonlinear and non-stationary signal. Empirical mode of the original signal was decomposed into the intrinsic mode function (IMF) components , and then Hilbert Transformation of IMF component was carried out. However , IMF components decomposed from the empirical mode decomposition may include a portion of false components. So Kolmogorov-Smimov fiuing goodness inspection test method was used to distinguish the similar probabilities of each IMF component and the original signal after decomposition. Furthermore , false components were got rid of. Finally , IMF components , whose similar probability was relatively high , were applied to get a reasonable Hilbert marginal spectrum. IMF components accurately reflect the local characteristics of the structure , and effectively realize CFST cavity detection.

Key words: Kolmogorov-Smimov inspection, Hilbert-Huang transfonmation, voice signal, probability distribution

中图分类号:

U446

韩西,王吉,钟厉, 向丽. 改进Hilbert-Huang 变换在钢管混凝土脱空检测中的应用[J]. 重庆交通大学学报（自然科学版）, 2013, 32(6): 1119-1121.

Han Xi，Wang Ji, Zhong Li, Xiang Li. Application of the Improved Hilbert-Huang Transformation to CFST Cavity Detection[J]. Journal of Chongqing Jiaotong University(Natural Science), 2013, 32(6): 1119-1121.

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改进Hilbert-Huang 变换在钢管混凝土脱空检测中的应用

Application of the Improved Hilbert-Huang Transformation to CFST Cavity Detection

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改进Hilbert-Huang 变换在钢管混凝土 脱空检测中的应用

Application of the Improved Hilbert-Huang Transformation to CFST Cavity Detection

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改进Hilbert-Huang 变换在钢管混凝土脱空检测中的应用