Paper Info
Title
Locating an Acoustic Emission Source in Multilayered Media Based on the Refraction Path Method.
Abstract
The traditional acoustic emission (AE) source location method, which is based on the model of a single-layered medium, is not appropriate for accurately locating AE sources in multilayered media. To solve this problem, an innovative AE source location method based on a refraction path (RP) method is proposed. In this new method, the refraction points at each interface are first solved according to Snell's law and then substituted into the equations for the time difference of arrival (TDOA). Second, linear equations can be obtained by linearizing the TDOA equations. Finally, the optimal AE source can be obtained by iteratively updating the trial solution based on the linearized equations. The results of a pencil-lead break experiment and a numerical simulation show that the proposed method is applicable of locating the actual AE source in both the single-and multilayered media, and the location error of this method in multilayered media is significantly smaller than that of the traditional method.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2805384
IEEE ACCESS
Keywords
Field
DocType
Acoustic emission,source location,multilayered media,refraction path,time difference of arrival
Linear equation,Computer simulation,Computer science,Refraction,Multilateration,Acoustics,Acoustic emission,Taylor series,Distributed computing
Journal
Volume
ISSN
Citations 
6
2169-3536
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Zilong Zhou113.14
Yichao Rui200.68
jing zhou311220.35
Long-jun Dong4279.43
Xin Cai5215.68