Abstract
Systematic spare management is important to optimize the twin goals of high reliability and low costs. However, existing approaches to spare management do not incorporate a detailed analysis of the effect on the absence of spares on the system’s reliability. In this work, we combine fault tree analysis with statistical model checking to model spare part management as a stochastic priced timed game automaton (SPTGA). We use UPPAAL STRATEGO to find the number of spares that minimizes the total costs due to downtime and spare purchasing; the resulting SPTGA model can then additionally be analyzed according to other metrics like expected availability. We apply these techniques to the emergency shutdown system of a research nuclear reactor. Our methods find the optimal spare management for a subsystem in a matter of minutes, minimizing cost while ensuring an expected availability of 99.96%.
Original language | English |
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Title of host publication | Formal Methods for Industrial Critical Systems |
Subtitle of host publication | 28th International Conference, FMICS 2023, Antwerp, Belgium, September 20–22, 2023, Proceedings |
Editors | Alessandro Cimatti, Laura Titolo |
Place of Publication | Cham, Switzerland |
Publisher | Springer Nature |
Pages | 205-223 |
Number of pages | 19 |
ISBN (Electronic) | 978-3-031-43681-9 |
ISBN (Print) | 978-3-031-43680-2 |
DOIs | |
Publication status | Published - 17 Sept 2023 |
Event | 28th International Conference on Formal Methods for Industrial Critical Systems, FMICS 2023 - Antwerp, Belgium Duration: 20 Sept 2023 → 22 Sept 2023 Conference number: 28 |
Publication series
Name | Lecture notes in computer science |
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Publisher | Springer Nature |
Volume | 14290 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 28th International Conference on Formal Methods for Industrial Critical Systems, FMICS 2023 |
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Abbreviated title | FMICS 2023 |
Country/Territory | Belgium |
City | Antwerp |
Period | 20/09/23 → 22/09/23 |
Keywords
- 2023 OA procedure
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Soltani, R. (Creator), Volk, M. (Creator), Diamonte, L. A. (Creator), Lopuhaä - Zwakenberg, M. A. (Creator) & Stoelinga, M. I. A. (Creator), Zenodo, 31 Jul 2023
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