应用局域波对声发射信号监测提取
응용국역파대성발사신호감측제취
Local Wave Applied to Detect and Characterize Acoustic Emission Signals
  • 万方数据
    船舶力学 선박역학
    JOURNAL OF SHIP MECHANICS
    2011年 6期 669-677 ,共9页

    林丽%赵德有

    림려%조덕유

    局域波%声发射%信号处理 跼域波%聲髮射%信號處理
    국역파%성발사%신호처리
    local-wave%acoustic emission%signal processing
    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.
    개소료국역파적기본원리,분석료성발사신호적특점화성발사신호검측계통,제출료국역파분해특정량제취기술.통과재강관렬문성발사적일개실제신호중적응용,험증료국역파특정량제취적유효성.
    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 localwave 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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