Stochastic filtering approach for condition-based maintenance considering sensor degradation

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Liu, Bin and Do, Phuc and Iung, Benoit and Xie, Min (2019) Stochastic filtering approach for condition-based maintenance considering sensor degradation. IEEE Transactions on Automation Science and Engineering. ISSN 1545-5955 (https://doi.org/10.1109/TASE.2019.2918734)

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Abstract

This paper proposes a condition-based maintenance (CBM) policy for a deteriorating system whose state is monitored by a degraded sensor. In the literature of CBM, it is commonly assumed that inspection of system state is perfect or subject to measurement error. The health condition of the sensor, which is dedicated to inspect the system state, is completely ignored during system operation. However, due to the varying operation environment and aging effect, the sensor itself will suffer a degradation process and its performance deteriorates with time. In the presence of sensor degradation, the Kalman filter is employed in this paper to progressively estimate the system and the sensor state. Since the estimation of system state is subject to uncertainty, maintenance solely based on the estimated state will lead to a suboptimal solution. Instead, predictive reliability is used as a criterion for maintenance decision-making, which is able to incorporate the effect of estimation uncertainty. Preventive replacement is implemented when the estimated system reliability at inspection hits a specific threshold, which is obtained by minimizing the long-run maintenance cost rate. An example of wastewater treatment plant is used to illustrate the effectiveness of the proposed maintenance policy. It can be concluded through our research that: 1) disregarding the sensor degradation while it exists will significantly increase the maintenance cost and 2) the negative impact of sensor degradation can be diminished via proper inspection and filtering methods.

ORCID iDs

Liu, Bin ORCID logoORCID: https://orcid.org/0000-0002-3946-8124, Do, Phuc, Iung, Benoit and Xie, Min;
  • Item type:Article
    ID code:70350
    Dates:
    Date
    Event
    19 June 2019
    Published
    20 May 2019
    Accepted
    Notes:© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Strathclyde Business School > Management Science
    Depositing user: Pure Administrator
    Date deposited:29 Oct 2019 15:09
    Last modified:18 Dec 2024 05:26
    URI:https://strathprints.strath.ac.uk/id/eprint/70350
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