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Fault detection by segment evaluation based on inferential statistics for asset monitoring

Atamuradov, Vepa and Medjaher, Kamal and Lamoureux, Benjamin and Dersin, Pierre and Zerhouni, Noureddine Fault detection by segment evaluation based on inferential statistics for asset monitoring. (2017) In: Annual Conference of the Prognostics and Health Management Society 2017, 30 September 2017 - 5 October 2017 (St. Petersburg, Florida, United States).

(Document in English)

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Detection of unexpected events (e.g. anomalies and faults) from monitoring data is very challenging in machine health assessment. Hence, abrupt or incipient fault detection from the monitoring data is very crucial to increase asset safety, availability and reliability. This paper presents a generic methodology for abrupt and incipient fault detection and feature fusion for health assessment of complex systems. Proposed methodology consists of feature extraction, feature fusion, segmentation and fault detection steps. First of all, different features are extracted using descriptive statistics. Secondly, based on linearly weighted data fusion algorithm, extracted features are combined to get the generic and representative feature. Afterward, combined feature is divided into homogeneous segments by sliding window segmentation algorithm. Finally, each segment is further evaluated by coefficient of variability which is used in inferential statistics, to evaluate health state changes that indicate asset faults. To illustrate its effectiveness, the methodology is implemented on point machine and Li-ion battery monitoring data to detect abrupt and incipient faults. The results show that proposed methodology can be effectively used in fault detection for asset monitoring.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to PHM Society editor. The definitive version is freely available at : https://www.phmsociety.org/events/conference/phm/17/proceedings
HAL Id:hal-01977320
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Nationale Supérieure de Mécanique et des Microtechniques - ENSMM (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Université de Franche-Comté (FRANCE)
Other partners > Université de Technologie de Belfort-Montbéliard - UTBM (FRANCE)
Laboratory name:
Deposited On:01 Dec 2017 10:08

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