| Type de publication : |
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Communications avec actes |
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| Domaine : |
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Sciences de l'ingénieur/Autre
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| Titre : |
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Ensemble of Unsupervised Fuzzy C-Means classifiers for clustering health status of oil sand pumps |
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| Auteur(s) : |
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Francesco Di Maio ( ) 1, Enrico Zio () 1, 2, M. Pecht 3, P. Tse 4, K.L. Tsui 4 |
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| Laboratoire : |
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| Résumé : |
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Detection of anomalies and faults in slurry pumps is an important task with implications for their safe, economical, and efficient operation. Wear, caused by abrasive and erosive solid particles, is one of the main causes of failure. Condition monitoring and on-line assessment of the wear status of wetted components in slurry pumps are expected to improve maintenance management and generate significant cost savings for pump operators. In this context, the objective of the present work is to present a framework for the assessment and measurement of the wear status of slurry pumps when available data is extremely limited. Four sequential steps are performed: data collection, feature extraction, feature selection and classification. The main idea is to combine the predictions of multiple unsupervised classifiers fed with different inputs taken from different signals, based on fuzzy C-means clustering, to reduce the variance of the results so that they are less dependent on the specifics of a single classifier. This will also reduce the variance of the bias, because a combination of multiple classifiers may learn a more expressive concept class than a single classifier. |
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Langue du texte
intégral : |
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Anglais |
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| Titre de l'ouvrage : |
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Proceedings of the European Safety and Reliability Conference 2011 |
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| Audience : |
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internationale |
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| Date de publication : |
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18/09/2011 |
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| Page, identifiant, ... : |
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419-427 |
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| Titre de la conférence : |
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ESREL 2011 |
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| Date de la conférence : |
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18/09/2011 |
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| Date de la conférence (fin) : |
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22/09/2011 |
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| Ville : |
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Troyes |
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| Pays : |
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France |
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| Mots Clés : |
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Degradation – Fault detection – Fuzzy C-means – Hierarchical Tree – Ensembles of classifiers – Slurry pumps |
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