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Prediction Technology on the Source Location of Acoustic Emission Signal in Plate with Welding Line  

이성재 (부산대학교 대학원 정밀기계공학과)
정연식 (부산대학교 대학원 정밀기계공학)
김정석 (부산대학교 기계공학)
강명창 (부산대학교 정밀정형 및 금형가공연구)
정규동 (㈜고려제강)
Publication Information
Journal of the Korean Society for Precision Engineering / v.21, no.8, 2004 , pp. 57-64 More about this Journal
Abstract
This study deals with the prediction of defect location which can be occurred in structure. The existing methods was very difficult to be applied to predict it, because of complex numerical formula. The triangulation method proposed in this study can predict the source location easily with small amount of data. The arrival time of wave can be directly converted into the distance between sensors. For this purpose, the propagation velocity was measured by Rayleigh wave, and the propagation behavior was analyzed. The welded workpiece is adapted to investigate for the consideration of jointed part in structure, The propagation velocity of signal was measured in welded workpiece and the revised algorithm of source location was proposed.
Keywords
AE Signal; Pencil Lead Break Signal; Source Location;
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