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Article Dans Une Revue Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability Année : 2021

Remaining useful life estimation based on the joint use of an observer and a hidden Markov model

Estimation de la durée de vie utile restante basée sur l'utilisation conjointe d'un observateur et d'un modèle de Markov caché

Résumé

We propose an approach for failure prognosis based on the estimation of the Remaining Useful Life (RUL) of a system in a situation in which monitoring signals providing information about its degradation evolution are not measured and no operating model of the system is available. These conditions are of practical interest for industrial applications such as mechanical (e.g. rolling bearing) or electrical (e.g. wind turbine) devices or equipment-critical components (e.g. batteries) in which the addition of sensors to the system is not feasible (e.g. space limitations for sensors, cost, etc.). The approach is based on an estimation of the system degradation using residual generation (where the difference between the system and the observer outputs is processed) and Hidden Markov Models with discrete observations. The prediction of the system RUL is given by the Markov property concerning the mean time before absorption. The approach comprises two phases: a training phase to model the degradation behavior and an “on-line” use phase to estimate the remaining life of the system. Two case studies were conducted for RUL prediction to verify the effectiveness of the proposed approach.

Domaines

Automatique
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Dates et versions

hal-03335373 , version 1 (06-09-2021)

Identifiants

Citer

Toufik Aggab, Pascal Vrignat, Manuel Avila, Frédéric Kratz. Remaining useful life estimation based on the joint use of an observer and a hidden Markov model. Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 2021, pp.1748006X2110443. ⟨10.1177/1748006X211044343⟩. ⟨hal-03335373⟩
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