| 基于系统解卷积技术的波纹管压浆质量检测 |
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| 引用本文： | 成锦,韩庆邦,陈媛,范洪辉,殷澄,朱昌平.基于系统解卷积技术的波纹管压浆质量检测[J].声学技术,2015,34(4):327-332. |
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| 作者姓名： | 成锦 韩庆邦 陈媛 范洪辉 殷澄 朱昌平 |
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| 作者单位： | 河海大学物联网学院, 江苏常州 213022;河海大学物联网学院, 江苏常州 213022;河海大学淮安研究院, 江苏淮安 223001;河海大学物联网学院, 江苏常州 213022;江苏理工学院计算机工程学院, 江苏常州 213001;河海大学物联网学院, 江苏常州 213022;河海大学物联网学院, 江苏常州 213022 |
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| 基金项目： | 国家自然科学基金(11274091、11274092、61302124)、河海大学中央高校基金(2011B11014)、淮安河海研究院开放基金资助项目。 |
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| 摘 要： | 提出了一种基于系统解卷积技术的波纹管压浆质量检测方法,利用系统分析技术结合解卷积补偿特性处理回波信号,并分析处理后的波形的首波响应时间,对缺陷的位置及大小做出判断。利用有限元进行了理论模拟仿真,采用系统解卷积技术处理并分析回波数据,结果表明解卷积后的波形的首波的响应时间与缺陷表面深度值存在一一对应关系。通过实际制作模型并进行实验测量,验证了仿真的结果。
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| 关 键 词： | 系统 解卷积 无损检测 有限元 缺陷 |
| 收稿时间： | 2014/7/14 0:00:00 |
| 修稿时间： | 2014/10/18 0:00:00 |
Nondestructive test method for cement grouting in corrugated pipe based on systemic de-convolution technique |
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| CHENG Jin,HAN Qing-bang,CHEN Yuan,FAN Hong-hui,YIN Cheng and ZHU Chang-ping.Nondestructive test method for cement grouting in corrugated pipe based on systemic de-convolution technique[J].Technical Acoustics,2015,34(4):327-332. |
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| Authors: | CHENG Jin HAN Qing-bang CHEN Yuan FAN Hong-hui YIN Cheng and ZHU Chang-ping |
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| Affiliation: | IOT Engineering College of Hohai University, Changzhou 213022, Jiangsu, China;IOT Engineering College of Hohai University, Changzhou 213022, Jiangsu, China;Huaian Research Institute of Hohai University, Huaian 223001, Jiangsu, China;IOT Engineering College of Hohai University, Changzhou 213022, Jiangsu, China;School of Computer Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu, China;IOT Engineering College of Hohai University, Changzhou 213022, Jiangsu, China;IOT Engineering College of Hohai University, Changzhou 213022, Jiangsu, China |
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| Abstract: | A nondestructive test for corrugated pipe based on systemic de-convolution technique is proposed in this paper. The grouting compactness is estimated by this technique through processing the impact echo signals. The positions and size of defects can be obtained by analyzing the beginning time of the head wave in de-convolution results. A model containing 4 different defects is constructed and simulated by using finite element method. The simulation results demonstrate that the complex scattering signals caused by grouting defects are hardly to be distinguished. The collected impact-echo signals are processed by signal processing of systemic de-convolution. It is found that the surface depth of the defect is directly related to the beginning time of the head wave in de-convolution result. Several actual models are constructed and measured, and the results are consistent well with simulated prediction. |
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| Keywords: | system de-convolution nondestructive test finite element defect |
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