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System-level prognostics based on inoperability input-output model

Tamssaouet, Ferhat and Nguyen, Thi Phuong Khanh and Medjaher, Kamal System-level prognostics based on inoperability input-output model. (2018) In: Annual conference of the prognostics and health management society 2018, 24 September 2018 - 27 September 2018 (Philadelphia, United States).

(Document in English)

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Official URL: https://phmpapers.org/index.php/phmconf/article/view/487


Nowadays, the modern industry is increasingly demanding the availability and reliability of production systems as well as the reduction of maintenance costs. The techniques to achieving these goals are recognized and discussed under the term of Prognostics and Health Management (PHM). However, the prognostics is often approached from a component point of view. The system-level prognostics (SLP), taking into account interdependencies and multi-interactions between system components, is still an underexplored area. Inspired from the inoperability input-output model (IIM), a new approach for SLP is proposed in this paper. The inoperability corresponds to the component’s degradation, i.e. the reduction of its performance in comparison to an ideal reference state. The interactions between component degradation and the effect of the environment are included when estimating the inoperability of components and also when predicting the system remaining useful life (SRUL). This approach can be applied to complex systems involving multi-heterogeneous components with a reasonable computational effort. Thus, it allows overcoming the lack of scope and scalability of the traditional approaches used in PHM. An illustrative example is presented and discussed in the paper to highlight the performance of the proposed approach.

Item Type:Conference or Workshop Item (Paper)
Additional Information:First Author et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 United States License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
HAL Id:hal-02111814
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Laboratory name:
Laboratoire Génie de Production - LGP (Tarbes, France) - Systèmes Décisionnels et Cognitifs
Deposited On:05 Mar 2019 14:05

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