Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Olivier Cousinard"'
Publikováno v:
Journal of Mechanical Science and Technology. 35:1821-1828
This paper describes an experimental study of lifting cable fault diagnostic based on instantaneous angular speed (IAS) technique. During the study load tests on a selection of damaged cables, it is shown that IAS increases significantly after the da
Publikováno v:
Journal of Vibration and Control. 22:3413-3425
The fault diagnosis and prognosis of low speed machines remains a difficult problem despite remarkable advances in the conditional monitoring domain. The Rolling-element bearing is a vital part of these machines and its failure is one of the main cau
Publikováno v:
Mechanics & Industry. 14:129-136
Rotating machines monitoring in a non-stationary regime, characterized by the operating parameters (speed, load) variation, presents a particular challenge. The speed variation has an impact on the vibratory response given by the accelerometers and t
Publikováno v:
Journal of Vibration and Control. 17:1983-1993
The aim of this article is to show the interest of three major denoising methods for the improvement of the sensitivity of scalar indicators (crest factor, kurtosis) within the application of conditional maintenance by vibratory analysis on ball bear
Publikováno v:
Expert Systems with Applications. 37:5887-5894
A methodology for the extraction of expert rules in the identification of bearing defects in rotating machinery is presented. Data sets are collected from signals measured by piezoelectric accelerometer fixed on bearings of an experimental set-up. Te
Publikováno v:
Journal of Vibration and Control. 14:1675-1690
Vibratory analysis allows us to interpret the fundamental conditions of rotating machines. This interpretation is useful in the diagnosis of defects. Many studies implement advanced processing tools for mechanical detection of defects in individual c
Publikováno v:
Mécanique & Industries. 9:459-468
Dans la maintenance conditionnelle de composants mecaniques par analyse vibratoire, on distingue deux types d'analyses qui sont necessaires pour l'obtention d'un diagnostic fiable. La premiere analyse reside dans la detection de defauts potentiels et
Publikováno v:
Proceedings of the 9th IFToMM International Conference on Rotor Dynamics ISBN: 9783319065892
This work describes shaft’s Instantaneous Angular Speed (IAS) behavior in the presence of a spall on bearing’s race at low speeds. It is shown that fault signature becomes more apparent in IAS signal when speed decreases and load increases. EEMD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db1dd5fd8377145eb9908fc7aa93a340
https://doi.org/10.1007/978-3-319-06590-8_41
https://doi.org/10.1007/978-3-319-06590-8_41
Publikováno v:
Mécanique & Industries. 5:393-406
Cet article propose une evaluation de l'analyse cepstrale dans le suivi vibratoire des machines tournantes afin de mettre en œuvre une maintenance previsionnelle. Apres avoir rappele les proprietes du cepstre pour un diagnostic vibratoire, nous prec
Publikováno v:
Control Engineering Practice. 12:181-190
The aim of this article is to show the interest of spectral subtraction for the improvement of the sensitivity of scalar indicators (crest factor, kurtosis) within the application of conditional maintenance by vibratory analysis on ball bearings. The