Results 1 to 10 of about 59,957 (305)

Analysis of acoustic emission signal of polyester/cotton yarns in the moment of tensile fracture by kernel density estimation method

open access: yesJournal of Hebei University of Science and Technology, 2016
To study tensile fracture of various component fibers of polyester/cotton yarns, acoustic emission signal acquisition device is built, which is used to collect the acoustic emission signals of polyester, cotton and polyester/cotton ring spun yarn ...
Jin WANG   +4 more
doaj   +1 more source

Effect of moisture content on characteristic stress and acoustic emission characteristics of red sandstone

open access: yesRock and Soil Mechanics, 2021
In order to investigate the response law of moisture content to the characteristic stress and acoustic emission characteristics of red sandstone, the uniaxial compression tests of red sandstone under different moisture content conditions were conducted ...
ZHAO Kui   +4 more
doaj   +1 more source

Mutation effect of acoustic and electromagnetic emissions of hard rock impact failure

open access: yesInternational Journal of Distributed Sensor Networks, 2019
To reveal acoustic emission and electromagnetic emission effects during hard rock impact failure is a crucial issue for monitoring and warning rockburst risk induced by hard roof fracture and fall.
Yang Liu, Cai-Ping Lu, Heng Zhang
doaj   +1 more source

Development of acoustic emission technology for condition monitoring and diagnosis of rotating machines: bearings, pumps, gearboxes, engines, and rotating structures [PDF]

open access: yes, 2006
Proof pdf available on ResearchGate (2nd May 2015 uploaded by David Mba)One of the earliest documented applications of Acoustic Emission Technology (AET) to rotating machinery monitoring was in the late 1960s.
Mba, David, Rao, Raj B. K. N.
core  

Research of Intelligent Acoustic Emission Instrument

open access: yesGong-kuang zidonghua, 2011
In view of problems that current acoustic emission instruments have only collection function of acoustic emission data, but no function of data processing and analysis, the paper proposed a design scheme of an intelligent acoustic emission instrument ...
YUAN Chen   +5 more
doaj  

Acoustic emission during the millisecond laser-optical glass interaction assisted by the nanosecond laser

open access: yesAIP Advances, 2018
A hydrophone is used to detect the acoustic emission for the combined pulsed laser (CPL)-BK7 glass interaction. The CPL is composed of a nanosecond (ns) laser and a millisecond (ms) laser, which are separated with a certain period of time.
Y. Pan   +7 more
doaj   +1 more source

Study on internal strain and acoustic emission characteristics of loaded concrete

open access: yesGong-kuang zidonghua, 2016
order to study interior crack evolution rules in rupture and instability process of concrete specimen, uniaxial compression experiment of concrete specimen embedded with strain brick was conducted, variation rule of internal strain of the concrete ...
WANG Hao   +4 more
doaj   +1 more source

Observations of acoustic emission in a hydrodynamic bearing [PDF]

open access: yes, 2009
Purpose - Numerous studies have been conducted in the field of acoustic emission (AE) technology applied to rotating machine fault diagnosis. Principally, most of the work to date has been focused on correlating AE activity to the defect condition on ...
Mba, David, Mirhadizadeh, S. A.
core   +1 more source

The application of spectral kurtosis on Acoustic Emission and vibrations from a defective bearing [PDF]

open access: yes, 2011
The application of Acoustic Emission (AE) technology for machine health monitoring is gaining ground as power tool for health diagnostic of rolling element bearing.
Mba, David   +7 more
core   +1 more source

Diesel Engine Valve Clearance Detection Using Acoustic Emission

open access: yes, 2010
This paper investigated, using experimental method, the suitability of acoustic emission (AE) technique for the condition monitoring of diesel engine valve faults.
Gu, Fengshou   +7 more
core   +1 more source

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