Velocity-Free MS/AE Source Location Method for Three-Dimensional Hole-Containing Structures

被引:118
作者
Dong, Longjun [1 ]
Hu, Qingchun [1 ]
Tong, Xiaojie [1 ]
Liu, Youfang [2 ]
机构
[1] Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China
[2] Colorado Sch Mines, Dept Geophys, Golden, CO 80401 USA
基金
中国国家自然科学基金;
关键词
Microseismic source; Acoustic emission; Velocity-free location method; Three-dimensional hole-containing structures; EMISSION SOURCE LOCATION; EARTHQUAKE LOCATION; LOCALIZATION; ROCKBURST;
D O I
10.1016/j.eng.2019.12.016
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Microseismic/acoustic emission (MS/AE) source localization method is crucial for predicting and controlling of potentially dangerous sources of complex structures. However, the locating errors induced by both the irregular structure and pre-measured velocity are poorly understood in existing methods. To meet the high-accuracy locating requirements in complex three-dimensional hole-containing structures, a velocity-free MS/AE source location method is developed in this paper. It avoids manual repetitive training by using equidistant grid points to search the path, which introduces A* search algorithm and uses grid points to accommodate complex structures with irregular holes. It also takes advantage of the velocity-free source location method. To verify the validity of the proposed method, lead-breaking tests were performed on a cubic concrete test specimen with a size of 10 cm x 10 cm x 10 cm. It was cut out into a cylindrical empty space with a size of phi 6cm x 10 cm. Based on the arrivals, the classical Geiger method and the proposed method are used to locate lead-breaking sources. Results show that the locating error of the proposed method is 1.20 cm, which is less than 2.02 cm of the Geiger method. Hence, the proposed method can effectively locate sources in the complex three-dimensional structure with holes and achieve higher precision requirements. (C) 2020 THE AUTHORS. Published by Elsevier LTD on behalf of Chinese Academy of Engineering and Higher Education Press Limited Company.
引用
收藏
页码:827 / 834
页数:8
相关论文
共 33 条
[1]  
[Anonymous], 1972, SIGART News- letters, DOI DOI 10.1145/1056777.1056779
[2]   Delta T source location for acoustic emission [J].
Baxter, Matthew Geoffrey ;
Pullin, Rhys ;
Holford, Karen M. ;
Evans, Sam L. .
MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2007, 21 (03) :1512-1520
[3]   Research Developments and Prospects on Microseismic Source Location in Mines [J].
Cheng, Jiulong ;
Song, Guangdong ;
Sun, Xiaoyun ;
Wen, Laifu ;
Li, Fei .
ENGINEERING, 2018, 4 (05) :653-660
[4]   Collaborative localization method using analytical and iterative solutions for microseismic/acoustic emission sources in the rockmass structure for underground mining [J].
Dong, Longjun ;
Zou, Wei ;
Li, Xibing ;
Shu, Weiwei ;
Wang, Zewei .
ENGINEERING FRACTURE MECHANICS, 2019, 210 :95-112
[5]   A Multi-Step Source Localization Method With Narrowing Velocity Interval of Cyber-Physical Systems in Buildings [J].
Dong, Longjun ;
Shu, Weiwei ;
Han, Guangjie ;
Li, Xibing ;
Wang, Jian .
IEEE ACCESS, 2017, 5 :20207-20219
[6]   Three Dimensional Comprehensive Analytical Solutions for Locating Sources of Sensor Networks in Unknown Velocity Mining System [J].
Dong, Longjun ;
Shu, Weiwei ;
Li, Xibing ;
Han, Guangjie ;
Zou, Wei .
IEEE ACCESS, 2017, 5 :11337-11351
[7]  
[董陇军 Dong Longjun], 2017, [岩石力学与工程学报, Chinese Journal of Rock Mechanics and Engineering], V36, P186
[8]  
[董陇军 Dong Longjun], 2011, [岩石力学与工程学报, Chinese Journal of Rock Mechanics and Engineering], V30, P2057
[9]  
Durrheim RJ, EXTRACTING SCI CENTU
[10]   Acoustic emission source location in composite materials using Delta T Mapping [J].
Eaton, M. J. ;
Pullin, R. ;
Holford, K. M. .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2012, 43 (06) :856-863