scholarly journals Multi scale analysis by acoustic emission of damage mechanisms in natural fibre woven fabrics/epoxy composites.

2010 ◽  
Vol 6 ◽  
pp. 20009 ◽  
Author(s):  
C. Bonnafous ◽  
F. Touchard ◽  
L. Chocinski-Arnault
2013 ◽  
Vol 380-384 ◽  
pp. 2954-2957
Author(s):  
Xiao Tao Zhang ◽  
Li Wei Tang ◽  
Ping Wang ◽  
Xing Xing Han ◽  
Shi Jie Deng

For the burst-type acoustic emission signal, time delay estimation of two sensors calculated by signal cross-correlation is not accurate, and it leads the source localization results is not also accurate. A new method is proposed to improve accuracy of source localization results based on multi-scale analysis and multi-sensors. Acoustic emission signal multi-scale analysis using wavelet transform, then the most accurate time delay is selected in sub-band of signal multi-scale analysis by multi-sensors time delay vector close rule. Finally, the simulation acoustic emission source localization experiment has high accuracy.


2018 ◽  
Vol 20 (suppl 1) ◽  
pp. 134-142
Author(s):  
Suchilla Garcia Leão ◽  
Marina Georgia de Melo Martins ◽  
Nathalia Caroline Ferreira Menezes ◽  
Fernanda Luiza Rinco de Mendonça Lima ◽  
Camila Fernanda Silva ◽  
...  

Author(s):  
A C Corbin ◽  
D Soulat ◽  
M Ferreira ◽  
A R Labanieh ◽  
X Gabrion ◽  
...  

2013 ◽  
Vol 770 ◽  
pp. 303-307
Author(s):  
Shan Shan Hu ◽  
Ying Ning Hu ◽  
Bang Dao Chen ◽  
Yan Wang ◽  
Xiao Dong Lai

Experiments of diamond sawblade sawing plain concrete are conducted with different sawing parameters. Real time signals of sawing force, vibration, acoustic emission and noise are collected, and Multi-scale wavelet analysis is adopted to analyze the interrelationship and interrelation of real time signals. Supervision and distinction of processing can achieved after Multi-scale wavelet analysis.


AIChE Journal ◽  
2016 ◽  
Vol 62 (8) ◽  
pp. 2635-2648 ◽  
Author(s):  
Lelu He ◽  
Yao Yang ◽  
Zhengliang Huang ◽  
Zuwei Liao ◽  
Jingdai Wang ◽  
...  

2013 ◽  
Vol 34 (9) ◽  
pp. 2078-2084 ◽  
Author(s):  
Yun-fei Wang ◽  
Du-yan Bi ◽  
De-qin Shi ◽  
Tian-jun Huang ◽  
Di Liu

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