Observations of a naturally degrading slow-speed shaft

M. Elforjani; D. Mba; B. Charnley

doi:10.1080/10589750903473625

Observations of a naturally degrading slow-speed shaft

M. Elforjani, D. Mba, B. Charnley

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Acoustic emission (AE) technology applied to condition monitoring is gaining acceptance as a useful monitoring tool. This study presents an experimental investigation for incipient fault detection of low-speed shafts with the AE technology. In addition to continuous AE measurements, traditional AE parameters, the energy index, kurtosis, information entropy and Kolmogorov-Smirnov test were employed to detect and monitor natural defect initiation and propagation in slow-speed rotating shafts. A low-speed test-rig was employed to accelerate natural shaft breakage. Throughout the life of the shaft, AE measurements were acquired. It is concluded that crack initiation and subsequent fracture can be detected using a range of data analysis techniques on AEs generated from natural degrading shafts.

Original language	English
Pages (from-to)	267-278
Number of pages	12
Journal	Nondestructive Testing and Evaluation
Volume	25
Issue number	4
DOIs	https://doi.org/10.1080/10589750903473625
Publication status	Published - 2 Jun 2010

Keywords

acoustic emission
condition monitoring
energy index
information entropy and Kolmogorov-Smirnov test
kurtosis
natural breakage and slow-speed shafts

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10.1080/10589750903473625

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abstract = "Acoustic emission (AE) technology applied to condition monitoring is gaining acceptance as a useful monitoring tool. This study presents an experimental investigation for incipient fault detection of low-speed shafts with the AE technology. In addition to continuous AE measurements, traditional AE parameters, the energy index, kurtosis, information entropy and Kolmogorov-Smirnov test were employed to detect and monitor natural defect initiation and propagation in slow-speed rotating shafts. A low-speed test-rig was employed to accelerate natural shaft breakage. Throughout the life of the shaft, AE measurements were acquired. It is concluded that crack initiation and subsequent fracture can be detected using a range of data analysis techniques on AEs generated from natural degrading shafts.",

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AB - Acoustic emission (AE) technology applied to condition monitoring is gaining acceptance as a useful monitoring tool. This study presents an experimental investigation for incipient fault detection of low-speed shafts with the AE technology. In addition to continuous AE measurements, traditional AE parameters, the energy index, kurtosis, information entropy and Kolmogorov-Smirnov test were employed to detect and monitor natural defect initiation and propagation in slow-speed rotating shafts. A low-speed test-rig was employed to accelerate natural shaft breakage. Throughout the life of the shaft, AE measurements were acquired. It is concluded that crack initiation and subsequent fracture can be detected using a range of data analysis techniques on AEs generated from natural degrading shafts.

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Observations of a naturally degrading slow-speed shaft

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Keywords

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