Acoustic emission source location considering refraction in layered media with cylindrical surface

Abstract To solve the problem that the existing acoustic emission (AE) source location algorithms cannot always obtain accurate results for multilayer cylindrical media, a new acoustic emission source location method considering refraction was proposed. AE source coordinates were solved by the complex method. Pencil-lead-break experiments were used to verify this method. The absolute distance errors of location results are less than 3 mm, much less than those by the traditional method. The numerical experiments were used to further analyze factors that affect location accuracy. The results of numerical experiments show that the location accuracy of the proposed method is not affected by the ratio of wave velocities but affected by the measurement accuracy of wave velocity. These results show that new method can obtain accurate AE source location in the two-layered cylindrical surface media such as the triaxial compression test.

[1]  Wei Wang,et al.  Early warning of rock mass instability based on multi-field coupling analysis and microseismic monitoring , 2019, Transactions of Nonferrous Metals Society of China.

[2]  Tribikram Kundu,et al.  An improved algorithm for detecting point of impact in anisotropic inhomogeneous plates. , 2011, Ultrasonics.

[3]  Zilong Zhou,et al.  Damage Evolution and Failure Behavior of Post-Mainshock Damaged Rocks under Aftershock Effects , 2019 .

[4]  Jing Zhou,et al.  Locating an Acoustic Emission Source in Multilayered Media Based on the Refraction Path Method , 2018, IEEE Access.

[5]  N. Tandon,et al.  Application of acoustic emission technique for the detection of defects in rolling element bearings , 2000 .

[6]  Xibing Li,et al.  Theoretical and Experimental Studies of Localization Methodology for AE and Microseismic Sources Without Pre-Measured Wave Velocity in Mines , 2017, IEEE Access.

[7]  Karen Margaret Holford,et al.  Improved acoustic emission source location during fatigue and impact events in metallic and composite structures , 2017 .

[8]  Jing Zhou,et al.  An Improved Automatic Picking Method for Arrival Time of Acoustic Emission Signals , 2019, IEEE Access.

[9]  Zilong Zhou,et al.  An improved joint method for onset picking of acoustic emission signals with noise , 2019, Journal of Central South University.

[10]  Li Xibing,et al.  Three-dimensional analytical solution of acoustic emission or microseismic source location under cube monitoring network , 2012 .

[11]  Soo-Ho Chang,et al.  Estimation of cracking and damage mechanisms in rock under triaxial compression by moment tensor analysis of acoustic emission , 2004 .

[12]  Chung-In Lee,et al.  Measurement of Acoustic Emission and Source Location Considering Anisotropy of Rock under Triaxial Compression , 2004 .

[13]  Tribikram Kundu,et al.  A new wave front shape‐based approach for acoustic source localization in an anisotropic plate without knowing its material properties , 2018, Ultrasonics.

[14]  S. Salamone,et al.  Acoustic emission source localization in thin metallic plates: A single‐sensor approach based on multimodal edge reflections , 2017, Ultrasonics.

[15]  T. Kundu,et al.  Acoustic source localization in anisotropic plates. , 2012, Ultrasonics.

[16]  Xibing Li,et al.  Collaborative localization method using analytical and iterative solutions for microseismic/acoustic emission sources in the rockmass structure for underground mining , 2018, Engineering Fracture Mechanics.

[17]  Dong Liu,et al.  Relocation method of microseismic source in deep mines , 2016 .

[18]  T. Warren Liao,et al.  Feature extraction and selection from acoustic emission signals with an application in grinding wheel condition monitoring , 2010, Eng. Appl. Artif. Intell..

[19]  H. Kao,et al.  The Source‐Scanning Algorithm: mapping the distribution of seismic sources in time and space , 2004 .

[20]  Ju Ma,et al.  Classification of mine blasts and microseismic events using starting-up features in seismograms , 2015 .

[21]  Yichao Rui,et al.  Experimental study on the location of an acoustic emission source considering refraction in different media , 2017, Scientific Reports.

[22]  Zilong Zhou,et al.  Dynamic Response and Energy Evolution of Sandstone Under Coupled Static–Dynamic Compression: Insights from Experimental Study into Deep Rock Engineering Applications , 2019, Rock Mechanics and Rock Engineering.

[23]  Tribikram Kundu,et al.  Acoustic source localization in an anisotropic plate without knowing its material properties – A new approach , 2017, Ultrasonics.

[24]  Shanyong Wang,et al.  Experimental Investigation on the Strength, Deformability, Failure Behavior and Acoustic Emission Locations of Red Sandstone Under Triaxial Compression , 2012, Rock Mechanics and Rock Engineering.

[25]  Hong-Keun Chang.  Identification of damage mode in AZ31 magnesium alloy under tension using acoustic emission , 2015 .

[26]  Mao Chen Ge.  Analysis of Source Location Algorithms Part I: Overview and Non-Iterative Methods , 2003 .

[27]  Guibin Wang,et al.  Similarity assessment of acoustic emission signals and its application in source localization , 2017, Ultrasonics.

[28]  Ju Ma,et al.  Three-dimensional analytical solution of acoustic emission source location for cuboid monitoring network without pre-measured wave velocity , 2015 .

[29]  E Dehghan Niri,et al.  Nonlinear Kalman Filtering for acoustic emission source localization in anisotropic panels. , 2014, Ultrasonics.

[30]  Petr Sedlák,et al.  Acoustic emission localization in thin multi-layer plates using first-arrival determination , 2013 .

[31]  Rhys Pullin,et al.  Acoustic emission source location in complex structures using full automatic delta T mapping technique , 2016 .

[32]  James Hensman,et al.  Locating acoustic emission sources in complex structures using Gaussian processes , 2008 .

[33]  H. Alkan,et al.  Rock salt dilatancy boundary from combined acoustic emission and triaxial compression tests , 2007 .