A hybrid maintenance model with imperfect inspection for a system with deterioration and Poisson failure

Citation
Mm. Hosseini et al., A hybrid maintenance model with imperfect inspection for a system with deterioration and Poisson failure, J OPER RES, 50(12), 1999, pp. 1229-1243
Citations number
22
Categorie Soggetti
Management,"Engineering Mathematics
Journal title
JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY
ISSN journal
01605682 → ACNP
Volume
50
Issue
12
Year of publication
1999
Pages
1229 - 1243
Database
ISI
SICI code
0160-5682(199912)50:12<1229:AHMMWI>2.0.ZU;2-T
Abstract
A new maintenance model for a system with both deterioration and Poisson fa ilures is proposed. In this model, at any time-instant Gs and when the syst em is operating, one of the following decisions may be taken: (1) stop the system to perform a scheduled minimal maintenance; (2) stop the system to p erform an inspection; and (3) no action and allow the system to go on with its operation. Following an inspection, based on the deterioration conditio n of the system, one of the following decisions may be taken: (a) if the sy stem is in a 'good' condition, no maintenance action is taken and a number of periodic minimal maintenance activities are scheduled, starting T1 later ; (b) if the system is in an 'intermediate' condition, a minimal maintenanc e is performed and an inspection is scheduled for T2 later (T2 < T1); and ( c) if the system is in a 'bad' condition, a major maintenance is performed and a number of periodic minimal maintenances are scheduled starting T1 lat er. In addition, a deterioration failure is restored by a major repair and a Poisson failure is restored by a minimal repair. Generalised stochastic P etri nets are used to represent and analyse the model, which represents a ' composite' maintenance strategy. Based on maximisation of the throughput of the system the benefit of this model compared to (1) an equivalent periodi c inspection model and (2) an equivalent planned scheduled maintenance mode l, is demonstrated. This study presents a new hybrid model with a general f ramework for incorporating various types of maintenance policies. Also by i ncorporation of a number of features, this model will be more applicable to real world technical systems (complex systems), although it can be applied to individual components that are part of a complex system.