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Joint optimization of monitoring quality and replacement decisions in condition-based maintenance

Nguyen, Thi Phuong Khanh and Do, Phuc and Huynh, Khac Tuan and Bérenguer, Christophe and Grall, Antoine Joint optimization of monitoring quality and replacement decisions in condition-based maintenance. (2019) Reliability Engineering and System Safety, 189. 177-195. ISSN 0951-8320

(Document in English)

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Official URL: https://doi.org/10.1016/j.ress.2019.04.034


The quality of condition monitoring is an important factor affecting the effectiveness of a condition-based maintenance program. It depends closely on implemented inspection and instrument technologies, and eventually on investment costs, i.e., a more accurate condition monitoring information requires a more sophisticated inspection, hence a higher cost. While numerous works in the literature have considered problems related to condition monitoring quality, (e.g., imperfect inspection models, detection and localization techniques, etc.) few of them focus on adjusting condition monitoring quality for condition-based maintenance optimization. In this paper, we investigate how such an adjustment can help to reduce the total cost of a condition-based maintenance program. The condition monitoring quality is characterized by the observation noises on the system degradation level returned by an inspection. A dynamic condition-based maintenance and inspection policy adapted to such a observation information is proposed and formulated based on Partially Observable Markov Decision Processes. The use and advantages of the proposed joint inspection and maintenance model are numerically discussed and compared to several inspection-maintenance policies through numerical examples.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Institut polytechnique de Grenoble (FRANCE)
Other partners > Université Grenoble Alpes - UGA (FRANCE)
Other partners > Université de Technologie de Troyes - UTT (FRANCE)
Other partners > Université de Lorraine (FRANCE)
Laboratory name:
Deposited On:06 May 2019 08:34

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