• 中国学术期刊(光盘版)全文收录期刊
  • 中国学术期刊综合评价数据库来源期刊
  • 中国期刊网、万方数据库入编期刊
  • 中文科技期刊数据库(全文版)收录期刊
  • 中国期刊全文数据库全文收录期刊
  • 中国机械工程学会 理化检验分会 失效分析分会 会刊
Advanced Search
HE Ru-hui, WANG Kai-sheng, ZHAO Zhi-min, ZHANG Ji-hua, JI Ren-dong, SHEN Ling-bin. Pattern Recognition of Laser-generated Lamb Wave Based on Time-frequency Analysis[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2012, 48(3): 151-155.
Citation: HE Ru-hui, WANG Kai-sheng, ZHAO Zhi-min, ZHANG Ji-hua, JI Ren-dong, SHEN Ling-bin. Pattern Recognition of Laser-generated Lamb Wave Based on Time-frequency Analysis[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2012, 48(3): 151-155.

Pattern Recognition of Laser-generated Lamb Wave Based on Time-frequency Analysis

More Information
  • Received Date: August 05, 2011
  • The modes of laser-generated Lamb waves are able to be recognized by different kinds of spectrum analytical methods such as fast fourier transform (FFT), short time fourier transform (STFT) and Hilbert-Huang transform (HHT). It can be found that by FFT and STFT, only the powerful mode can be recognized, however, by HHT, both of powerful and weak modes can be recognized. The study provides basic research for laser ultrasonic detection.
  • [1]
    SCRUBY C B. Some applications of laser ultrasound[J].Ultrasonics,1989,27:195-209.
    [2]
    李家伟, 陈积懋.无损检测手册[M].北京: 机械工业出版社, 2002: 10-15.
    [3]
    刘镇清.超声无损检测中的导波技术[J].无损检测, 1999, 21(8): 367-369.
    [4]
    王杜, 郑祥明.兰姆波在金属薄钢板无损检测中的应用研究[J].无损检测, 2007,29(4): 193-199.
    [5]
    刘镇清.无损检测中的超声兰姆波[J].无损检测, 1999,21(9):409-423.
    [6]
    李剑, 刘松平.铝板中Lamb波模式识别方法[J].无损检测, 2008,30(12):872-876.
    [7]
    王杜.金属薄板的超声兰姆波无损检测[D].武汉: 武汉科技大学, 2007:2-3.
    [8]
    PROSSER W H, MICHAEL D S. Time-frequency analysis of the dispersion of Lamb modes[J].J Acoust Soc Am,1999,105(5):2669-2676.
    [9]
    聂颖.基于时频分析的超声信号处理方法的研究[D].大连: 大连理工大学, 2006:28-29.
    [10]
    HUANG N E, SHEN Z, LONG S R. The empirical mode decomposition and Hilbert spectrum for nonlinear and nonstationary time series analysis[J].Proceedings of the Royal Society A,1998,454:903-995.
    [11]
    张海燕, 于建波.HHT在Lamb波检测信号分析中的应用[J].振动、测试与诊断, 2010,30(3):223-226.
    [12]
    罗斯 J L. 固体中的超声波[M].何存富, 吴斌, 王秀彦, 译.北京: 科学出版社, 2004:89-91.

Catalog

    Article views (3) PDF downloads (0) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return