Optimal Prognostics and Health Management-driven inspection and maintenance strategies for industrial systems

A. Mancuso*, M. Compare, A. Salo, E. Zio

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

52 Citations (Scopus)
104 Downloads (Pure)

Abstract

The performance of the Prognostics and Health Management (PHM) depends both on the functioning of the measurement acquisition system and on the actual state of the system being monitored. The dependencies between these systems must be considered when developing optimal inspection and maintenance strategies. This paper presents a methodology to support the definition maintenance strategies for PHM-equipped industrial systems. The methodology employs influence diagrams when seeking to maximize the expected utility of system operation. The optimization problem is solved by mixed-integer linear programming, subject to budget and technical constraints. Chance constraints can be also included, for instance to curtail risks based on measures such as the Value at Risk (VaR) and the Conditional Value at Risk (CVaR) of system operation. The viability of the methodology is demonstrated by optimizing the inspection and maintenance strategy for a gas turbine equipped with PHM solution. The computation of the Value of Perfect Information (VoPI) provides additional insights on maintenance management.

Original languageEnglish
Article number107536
Number of pages10
JournalReliability Engineering and System Safety
Volume210
DOIs
Publication statusPublished - Jun 2021
MoE publication typeA1 Journal article-refereed

Funding

The research has been supported by the project Platform Value Now, funded by the Strategic Research Council of the Academy of Finland (grant number 314207 ) . The case study has been performed using Julia Programming language with the technical support of M.Sc. Juho Andelmin.

Keywords

  • Decision Programming
  • Gas turbine
  • Influence diagrams
  • Predictive maintenance
  • Prognostics and Health Management
  • Value of Perfect Information

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  • Platform Value Now: Value capturing in the fast emerging platform ecosystems

    Salo, A. (Principal investigator), Jokinen, A. (Project Member), Lahtinen, T. (Project Member), Tollander de Balsch, J. (Project Member), Mancuso, A. (Project Member), Raitio, R. (Project Member), Andelmin, J. (Project Member), Heikura, T. (Project Member), Eloranta, V. (Project Member), Brander, T. (Project Member) & Laatunen, M. (Project Member)

    01/01/201831/10/2021

    Project: Academy of Finland: Strategic research funding

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