Results 51 to 60 of about 197,256 (253)
Size Effect on Acoustic Emission Characteristics of Coal-Rock Damage Evolution
Advances in Materials Science and Engineering, 2017 Coal-gas outburst, rock burst, and other mine dynamic disasters are closely related to the instability and failure of coal-rock. Coal-rock is the assemblies of mineral particles of varying sizes and shapes bonded together by cementing materials.
Zhijie Wen +4 more
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Aviation, 2013 The paper considers the results of modelling acoustic emission signals that form under variations in the rotational speed of a friction pair made of a composite material.
Sergey Filonenko, Aleksandr Kosmach
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Enhanced Acoustic Emission in Relation to the Acoustic Halo Surrounding Active Region 11429
, 2015 The use of acoustic holography in the high-frequency $p$-mode spectrum can resolve the source distributions of enhanced acoustic emissions within halo structures surrounding active regions.
Donea, Alina C. +2 more
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Gong-kuang zidonghuaWhen studying the relationship between acoustic emission features and coal samples and fractures, both raw coal and briquette can be used as experimental samples.
WANG Linzhi +4 more
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Study of response regularity of acoustic emission in gas jet orifice
Gong-kuang zidonghua, 2016 In order to prevent danger of coal and gas outburst in process of rock cross-cut coal uncovering, tests and analysis on acoustic emission in rock cross-cut coal uncovering process in a coal mine were conducted based on acoustic emission monitoring system.
LI Guo’ai +4 more
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Acoustic emission study of fatigue crack propagation in Q345R
工程科学学报, 2015 The acoustic emission signals of fatigue crack propagation in Q345R,which is the typical representative of common steel for pressure vessels,were investigated in detail to construct a relationship between fatigue and acoustic emission.
CHAI Meng-yu, DUAN Quan, ZHANG Zao-xiao
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Advances in Materials Science and Engineering, 2020 In order to study the acoustic emission characteristics and Felicity effect in the process of coal fatigue failure and reveal the internal relationship between the fatigue damage evolution law and the acoustic emission activity, with the help of MTS815 ...
Yongjie Yang, Luyi Xing
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Application of Finite Elements Method for Improvement of Acoustic Emission Testing [PDF]
, 2016 The paper deals with the acoustic emission sensor modeling by means of FEM system COSMOS/M. The following types of acoustic waves in the acoustic emission sensors are investigated: the longitudinal wave and transversal wave.
Gerasimov, S. +2 more
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Localization algorithm for acoustic emission
Physics Procedia, 2010 AbstractIn this paper, an iterative algorithm for localization of acoustic emission (AE) source is presented. The main advantage of the system is that it is independent of the “ability” in the determination of signal level to triggering the signal by the researcher.
V. Salinas +3 more
openaire +2 more sources
Application Research of Acoustic Emission Technology in Crack Monitoring of Column Cylinder
Gong-kuang zidonghua, 2011 In view of problem of fracture of cylinder in strength test and type test for column cylinder, the paper put forward a scheme of crack monitoring of column cylinder based on acoustic emission technology.
YAO Yu-wei
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