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Subject

Investigation of the Effect of Wear Particles on the Acoustic Emission Signal
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마모 입자가 음향방출신호에 미치는 영향에 관한 연구

논문 기본 정보

Type
Academic journal
Author
Jae-Ho Han (연세대학교) Dong-Gap Shin (연세대학교) Dae-Eun Kim (연세대학교)
Journal
Korean Tribology Society Tribology and Lubricants Vol.35 No.5 KCI Accredited Journals
Published
2019.10
Pages
317 - 322 (6page)

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Investigation of the Effect of Wear Particles on the Acoustic Emission Signal
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Abstract· Keywords

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In spite of progress in tribological research, machine component failure due to friction and wear has been reported frequently. This failure may lead to secondary damage that can cause huge expense for maintenance and repair. To prevent economic loss, it is important to detect and predict the initial failure point. In this sense, various researchers have been tried to develop Condition Monitoring (CM) method using Acoustic Emission (AE) generated while the materials undergo failure. In this study, effect of particles on friction and wear was investigated using the pin-on-plate friction test and AE signal was recorded with a band-width type AE sensor. The experiments were performed in dry and lubricant conditions using steel and glass as specimens. After the experiment, 3D laser microscope image was captured to evaluate the wear behavior quantitatively. The AE signal was analyzed in time-domain and frequency-domain. The amplitude was compared with the frictional results. The results of this study showed that particle generation accelerate wear, generate high magnitude AE signal and change the frequency characteristics of the signal. Also, lubricant condition test results showed low coefficient of friction, low wear rate, and low magnitude of AE signal compared to the dry condition. It is expected that the results of this study will aid in better assessment of wear in CM technology.

Contents

Abstract
1. 서론
2. 연구방법 및 내용
3. 결과 및 고찰
4. 결론 및 고찰
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UCI(KEPA) : I410-ECN-0101-2019-551-001328219