Journal
ACOUSTICS AUSTRALIA
Volume 49, Issue 2, Pages 177-184Publisher
SPRINGER SINGAPORE PTE LTD
DOI: 10.1007/s40857-021-00232-7
Keywords
Machine condition monitoring; Vibration analysis; Signal processing; Health indicators; Detection; Machine learning
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Funding
- French National Research Agency (ANR) [ANR-10-LABX-0060/ANR-11-IDEX-0007]
- Labex CeLyA of the Universite de Lyon, within the programme 'Investissements d'Avenir' [ANR-10-LABX-0060/ANR-11-IDEX-0007]
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This paper reviews the trends in vibration-based condition monitoring research and outlines a methodology that has been widely recognized in the field. Despite various variants, the fundamental principles of this methodology seem to have converged to a general consensus. The paper discusses working assumptions, caveats, and potential prospects for future research.
The number of research papers dealing with vibration-based condition monitoring has been exponentially growing in recent decades. As a consequence, one may identify some trends that emerge from this vast literature. The present paper delineates a methodology that can be recognized in several research works, which is rooted in a succession of three stages. The first stage embodies a linear transform of the data, typically in the form of a filterbank, the second stage reduces the dimension of the data through a nonlinear functional, typically in the form of health indicators, and the last stage supplies a statistical decision. Although several variants of this methodology exist, its fundamental principles seem to have converged to a general consensus, at least implicitly. This paper provides a critical overview of this methodology. It discusses its working assumptions under some typical scenarios and formulates several caveats. It also provides a few prospects that may nourish future research.
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