首页|A robust triaxial localization method of AE source using refraction path

A robust triaxial localization method of AE source using refraction path

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Acoustic emission(AE)localization algorithms based on homogeneous media or single-velocity are less accurate when applied to the triaxial localization experiments.To the end,a robust triaxial localization method of AE source using refraction path is proposed.Firstly,the control equation of the refraction path is established according to the sensor coordinates and arrival times.Secondly,considering the influence of time-difference-of-arrival(TDOA)errors,the residual of the governing equation is calculated to esti-mate the equation weight.Thirdly,the refraction points in different directions are solved using Snell's law and orthogonal constraints.Finally,the source coordinates are iteratively solved by weighted correc-tion terms.The feasibility and accuracy of the proposed method are verified by pencil-lead breaking experiments.The simulation results show that the new method is almost unaffected by the refraction ratio,and always holds more stable and accurate positioning performance than the traditional method under different ratios and scales of TDOA outliers.

Acoustic emission(AE)Source localizationRobust methodRefraction pathsWeight estimations

Yichao Rui、Jie Chen、Jiongkun Chen、Jiadong Qiu、Zilong Zhou、Wenzhong Wang、Jinyang Fan

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State Key Laboratory of Coal Mine Disaster Dynamics and Control,Chongqing University,Chongqing 400044,China

School of Resources and Safety Engineering,Chongqing University,Chongqing 400044,China

School of Resources Environment and Safety Engineering,University of South China,Hengyang 421001,China

School of Resources and Safety Engineering,Central South University,Changsha 410083,China

Coal Geological Exploration Institute of Gansu,Lanzhou 730030,China

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国家自然科学基金国家自然科学基金Postdoctoral Fellowship Program of CPSF中国博士后科学基金National Key Research and Development Program for Young Scientists

5230412352104077GZB202309142023M7304122021YFC2900400

2024

10.1016/j.ijmst.2024.03.004

矿业科学技术学报(英文版)
中国矿业大学

矿业科学技术学报(英文版)

CSTPCDEI
影响因子：1.222
ISSN：2095-2686
年,卷(期)：2024.34(4)
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