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Pattern recognition analysis of acoustic emission signals propagated through a waveguide – A simulation study

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Title Pattern recognition analysis of acoustic emission signals propagated through a waveguide – A simulation study
 
Creator Prabakar, K
Rao, S P Mallikarjun
 
Subject Pattern recognition
Acoustic emission
Cylindrical waveguide
 
Description 900-905
Pattern recognition (PR) analysis of acoustic emission (AE) signals for classifying the source mechanisms involved, is a widely accepted practice, if the signals are directly picked up from the test specimen. However, there is an apprehension for the same, when a waveguide (WG) is used to pickup the signals. In the present paper, the validity of PR analysis has been studied on burst AE signals even after their propagation through a WG, using a software routine for wave propagation in cylindrical rods, based on Pochhammer-Chree (PC) equations, developed by Seco F et al. “PCDISP: a tool for the simulation of wave propagation in cylindrical waveguides”, In: The 9th international congress on sound and vibration, in Orlando, Florida (2002). It is found that irrespective of the dimensions of the cylindrical WG, PR analysis can classify different source mechanisms. An experiment to support the simulation is also included.
 
Date 2008-12-30T04:28:51Z
2008-12-30T04:28:51Z
2007-11
 
Type Article
 
Identifier 0019-5596
http://hdl.handle.net/123456789/2688
 
Language en_US
 
Relation B06B
 
Publisher CSIR
 
Source IJPAP Vol.45(11) [November 2007]