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Inspection Optimization under imperfect maintenance performance
Luleå tekniska universitet, Drift, underhåll och akustik.ORCID-id: 0000-0001-7083-4009
Luleå tekniska universitet, Drift, underhåll och akustik.ORCID-id: 0000-0002-3266-2434
Machine Design and Production Engineering Unit, Research Institute for the Science and Manage ment of Risks, University of Mons.
Luleå tekniska universitet, Drift, underhåll och akustik.
Ansvarlig organisasjon
2017 (engelsk)Inngår i: Proceedings of MPMM 2016: 6th International Conference on Maintenance Performance Measurement and Management, 28 November 2016, Luleå, Sweden / [ed] Diego Galar, Dammika Seneviratne, Luleå: Luleå tekniska universitet , 2017, s. 139-Konferansepaper, Oral presentation with published abstract (Fagfellevurdert)
Abstract [en]

Scheduled maintenance and inspection development is one of the main requirements for emergency equipment and safety devices. These types of devices have hidden functions which are used intermittently or infrequently, so their failure will not be evident to the operating crew. The analytical model presented in this paper deals with the periodically tested units with overhauls (preventive maintenance) after certain number of inspections and a renewal after a series of overhauls. The cost based optimization method presented in this paper identifies the optimum interval and frequency of Failure Finding Inspection (FFI) and restoration. In the proposed model, repair due to failures found by inspection makes the unit As Bad As Old, and restoration/overhaul action rejuvenates the unit to any condition between As Good As New and As Bad As Old. As Good As New effectiveness also is considered for renewal action. It considers inspection and repair times, and takes into account the costs associated with inspection, repair, restoration, and also the cost of accidents due to the occurrence of multiple failure. The results show that when the unit is not under aging process, the optimal alternative for each inspection interval is the one with highest possible number of inspection without restoration. Finally, it is observed that when the cost of accident is quite high it is needed to perform inspections at smaller intervals to control the risk of accident.

sted, utgiver, år, opplag, sider
Luleå: Luleå tekniska universitet , 2017. s. 139-
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Trafikverkets forskningsportföljer
HSV kategori
Forskningsprogram
FOI-portföljer, Vidmakthålla
Identifikatorer
URN: urn:nbn:se:trafikverket:diva-6074ISBN: 978-91-7583-841-0 (digital)OAI: oai:DiVA.org:trafikverket-6074DiVA, id: diva2:1744157
Konferanse
Maintenance Performance and Measurement and Management 2016(MPMM 2016). November 28, Luleå, Sweden
Prosjekter
Simulering av spårgeometri
Forskningsfinansiär
Swedish Transport Administration, TRV 2016/61672Tilgjengelig fra: 2023-03-17 Laget: 2023-03-17 Sist oppdatert: 2023-03-17bibliografisk kontrollert

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