| 应用局域波对声发射信号监测提取 |
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| 引用本文： | 林丽,赵德有.应用局域波对声发射信号监测提取[J].船舶力学,2011,15(6):669-677. |
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| 作者姓名： | 林丽 赵德有 |
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| 作者单位： | 大连理工大学船舶舶工程学院,辽宁大连,116023;大连理工大学船舶舶工程学院,辽宁大连,116023 |
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| 基金项目： | Supported by the National Natural Science Foundation of China(Grant No.50479060)~~ |
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| 摘 要： | 介绍了局域波的基本原理,分析了声发射信号的特点和声发射信号检测系统,提出了局域波分解特征量提取技术。通过在钢管裂纹声发射的一个实际信号中的应用,验证了局域波特征量提取的有效性。
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| 关 键 词： | 局域波 声发射 信号处理 |
Local Wave Applied to Detect and Characterize Acoustic Emission Signals |
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| LIN Li,ZHA O De-you.Local Wave Applied to Detect and Characterize Acoustic Emission Signals[J].Journal of Ship Mechanics,2011,15(6):669-677. |
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| Authors: | LIN Li ZHA O De-you |
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| Institution: | LIN Li,ZHAO De-you(School of Naval Architecture,Dalian University of Technology,Dalian 116023,China) |
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| Abstract: | The possibility of using local-wave to detect and characterize the acoustic emission signals produced by the crack in the steel tube was presented in this paper.After the theory of local-wave was introduced,the characteristics of acoustic emission signals and the system of the acoustic emission testing were analyzed.A sample of the crack in the steel tube was given to demonstrate the feasibility of local-wave in the feature extraction. |
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| Keywords: | local-wave acoustic emission signal processing |
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