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Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: Rockburst is a dynamic phenomenon accompanied by acoustic emission (AE) activities. It is difficult... rockburst. This is a meaningful attempt on predicting rockburst. Key words: rockburst; precursory information; acoustic emission; information entropy; dominant frequency; evolution model Cite......
号:TF811 文献标志码:A 文章编号:1672-7207(2013)11-4694-08 Denoising processing on acoustic emission..., Changsha 410083, China; 2. Commercial College, Hunan International Economics University, Changsha 410205, China) Abstract: In order to improve measurement accuracy of acoustic emission signals from......
; 文献标志码:A 文章编号:1672-7207(2010)04-1491-06 Acoustic targets fusion identification based on Daubechies wavelet transform and D-S evidential theory... 518055, China) Abstract: According to the characteristics of complex battlefield environment, the wavelet transform was used to extract the acoustic target features, and D-S evidential theory was used......
of the fatigue load and their biaxial compressive strength. The acoustic emission (AE) and fragments studies showed that the sandstone has higher ability to resist the fatigue loads compared... or severer induced by fatigue loading than that induced by monotonous quasi-static loading, especially for hard rocks. Key words: biaxial confinements; fatigue loading; acoustic emission; fragments......
triaxial unloading rockburst tests and a new test path in which the intermediate principal stress was varied. During the tests, a high-speed camera was used to record the strainburst process, and an acoustic...; true triaxial test; intermediate principal stress; acoustic emission; marble Cite this article as: JIANG Bang-you, GU Shi-tan, WANG Lian-guo, ZHANG Guang-chao, LI Wen-shuai. Strainburst process......
率差近似呈线性关系. 关键词:高频热声发动机;声耦合;数值仿真 中图分类号:TB65 文献标志码:A 文章编号:1672-7207(2017)09-2529-07 Acoustic coupling characteristics...: The synergy theory was introduced into the acoustic coupling research of high-frequency thermoacoustic engines. Based on the synergy theory, the important parameters that had impact on the coupling......
experiments. Acoustic emission (AE) technique was used in situ to monitor the cracking and spalling of oxide film, and AE signals were analyzed in time-domain and number-domain according to related oxide... the adhesive property of Cr2O3 oxide scale formed on Cr substrate. Key words:oxidation; acoustic emission; laser Raman; stress; ceria; rare earths; [全文内容正在添加中] ......
Trans. Nonferrous Met. Soc. China 25(2015) 293-302 Three-dimensional analytical solution of acoustic emission source location for cuboid monitoring network without pre-measured wave velocity Long-jun..., The University of Western Australia, Perth 6009, Australia Received 27 August 2013; accepted 25 November 2014 Abstract: To find analytical solutions of nonlinear systems for locating the acoustic......
分类号:TK427 文献标识码:A 文章编号:1672-7207(2009)05-1294-05 Acoustic-radiation prediction of SF480 engine block based-on acoustic transfer vector LIU Yu-mei1, YUAN Wen-hua1, PAN Li-zhi2 (1. Department of Mechanical and Energy Engineering, Shaoyang College, Shaoyang 422004, China; 2. College of Power......
and INSTRON1346 servo-testing machine under pure mode I loading conditions. During the test, the crack propagation process was recorded by high-speed (HS) camera, and the acoustic emission (AE) signal generated by the fracture was collected by acoustic emission (AE) system. At the same time, crack propagation gauge (CPG) was used to measure the crack propagation velocity of the specimen. The results......