Research on time-frequency analysis in non destructive testing for laminated composite material

HU Yong; XU Chun-guang; ZHOU Shi-yuan; XU Han-hui

doi:10.13873/j.1000-97872009.08.001

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Research on time-frequency analysis in non destructive testing for laminated composite material

更新时间：2025-09-11

- Research on time-frequency analysis in non destructive testing for laminated composite material
- Vol. 28, Issue 8, Pages: 14-17(2009)
- 作者机构：
  
  北京理工大学控制与检测实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872009.08.001
  CLC： TB302
- Published：2009
- 稿件说明：
移动端阅览
[1]胡勇,徐春广,周世圆,许寒辉.时频分析在复合材料无损检测中的应用研究[J].传感器与微系统,2009,28(08):14-17.

HU Yong, XU Chun-guang, ZHOU Shi-yuan, et al. Research on time-frequency analysis in non destructive testing for laminated composite material[J]. 2009, 28(8): 14-17.
[1]胡勇,徐春广,周世圆,许寒辉.时频分析在复合材料无损检测中的应用研究[J].传感器与微系统,2009,28(08):14-17. DOI： 10.13873/j.1000-97872009.08.001.

HU Yong, XU Chun-guang, ZHOU Shi-yuan, et al. Research on time-frequency analysis in non destructive testing for laminated composite material[J]. 2009, 28(8): 14-17. DOI： 10.13873/j.1000-97872009.08.001.

摘要

随着复合材料检测的发展

Lamb波无损检测技术日益受到重视。根据Lamb波多模式和频散的特点

以群速度—频厚积曲线为基础

采用短时傅利叶变换（STFT）的时频分析方法

以层合板复合材料为实验对象

与单独在时域、频域中分析相比较

结果表明:STFT可有效地识别Lamb波的传播模式

并可准确地对能量成分进行分析。

Abstract

Composite materials are used broadly in the domain of industry

and it is important to test those damages

especially non destructive testing.Based on the curve of group-frequency multiply thickness

a laminated plate is used as experimental object

Lamb waves are chosen as testing way

through time-frequency analysis

some effect of given defection in composite materials is determined.Compared with signal analysis which is based on time or frequency field respectively

time-frequency analysis can not only recognize Lamb waves mode

but also analyze energy component of each mode.

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references

碳纤维复合材料分层损伤的超声波无损检测研究 [D]. 张澎涛. 东北林业大学 2006

Matlab时频分析技术及其应用[M]. 人民邮电出版社 , 葛哲学,陈仲生编著, 2006

固体中的超声波[M]. 科学出版社 , (美)J.L.罗斯（JosephL.Rose）著, 2004

Detection of defects in composite plates using Lamb waves and novelty detection [J] . K. Worden,S. G. Pierce,G. Manson,W. R. Philp,W. J. Staszewski,B. Culshaw. International Journal of Systems Science . 2000 (11)

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