Analysis of Acoustic Emission Signals from Stainless Steel with Different Wavelet Bases

被引：8

作者：

Jin, Zhihao ^{[1
]}

Gong, Bin ^{[1
]}

Jin, Wen ^{[1
]}

Wen, Bangchun ^{[2
]}

机构：

[1] Shenyang Inst Chem Technol, Dept Mech Engn, Shenyang, Liaoning Prov, Peoples R China

[2] Northeastern Univ, Coll Mech Engn & Automat, Shenyang, Liaoning Prov, Peoples R China

来源：

2008 IEEE INTERNATIONAL SYMPOSIUM ON KNOWLEDGE ACQUISITION AND MODELING WORKSHOP PROCEEDINGS, VOLS 1 AND 2 | 2008年

基金：

中国国家自然科学基金;

关键词：

Acoustic emission; wavelet transform; energy ratio; frequency;

D O I：

10.1109/KAMW.2008.4810635

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In order to investigate the differences in the results which are obtained by analyzing the same acoustic emission signal with different wavelet bases, the acoustic emission signals from stainless steel during the plastic deformation and cracking were analyzed with db5 wavelet and sym5 wavelet. Comparing the results obtained by db5 with that by sym5, it is shown that, during the plastic deformation and cracking of stainless steel specimens with a notch in the tensile test, the tendency of energy distribution is identical, the frequencies corresponding to the main signal peak are identical on the whole, the energy ratios of every scales are obviously different, and the peaks of the signal at corresponding scales are obviously different that the average departure is about 20 percent.

引用

页码：892 / +

页数：2

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