[1]沈国利、刘景良、余贤英、吴金福、郑文婷.基于压电陶瓷应力波的套筒灌浆缺陷检测[J].福建工程学院学报,2019,17(06):586-592.[doi:10.3969/j.issn.1672-4348.2019.06.014]
　SHEN Guoli,LIU Jingliang,YU Xianying,et al.Defect detection of sleeve grouting based on stress wave of piezoelectric ceramics[J].Journal of FuJian University of Technology,2019,17(06):586-592.[doi:10.3969/j.issn.1672-4348.2019.06.014]
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基于压电陶瓷应力波的套筒灌浆缺陷检测()
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《福建工程学院学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第17卷
期数:
2019年06期
页码:
586-592
栏目:
出版日期:
2019-12-25

文章信息/Info

Title:
Defect detection of sleeve grouting based on stress wave of piezoelectric ceramics
作者:
沈国利、刘景良、余贤英、吴金福、郑文婷
福建农林大学
Author(s):
SHEN Guoli;  LIU Jingliang;  YU Xianying;  WU Jinfu;  ZHENG Wenting
College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University
关键词:
压电陶瓷; 应力波; 小波包分析; 灌浆套筒; 无损检测
Keywords:
piezoelectric ceramic;  stress wave;  wavelet packet analysis;  grout sleeve;  nondestructive inspection
分类号:
TU399
DOI:
10.3969/j.issn.1672-4348.2019.06.014
文献标志码:
A
摘要:
采用基于压电陶瓷应力波的方法对套筒灌浆的密实性进行缺陷检测。通过有限元方法模拟灌浆套筒构件在健康与不同缺陷工况下的响应信号，在此基础上采用小波包变换定义了缺陷检测指标小波包能量。数值算例研究结果表明:小波包能量指标能够有效地识别灌浆套筒内部灌浆料的密实性，并且随着灌浆缺陷的增大指标值逐渐增大。
Abstract:
A method based on the stress wave of piezoelectric ceramics was used to detect the defects of the compactness of sleeve grouting. First, the response signals of sleeve grouting under health and different defect conditions were simulated by the finite element method, and then the wavelet packet transform was used to define the wavelet packet energy as the defect detection index. The results of numerical studies show that the index of wavelet packet energy can effectively detect the compactness of grouting material inside sleeve grouting, and its value increases with the accumulation of grouting defects.

参考文献/References:

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更新日期/Last Update: 2019-12-25