Titlebook: Reliability and Maintenance of Complex Systems; Süleyman ?zekici Conference proceedings 1996 Springer-Verlag Berlin Heidelberg 1996 Servic

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Reliability and Maintenance of Complex Systems978-3-662-03274-9Series ISSN 0258-1248

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Stochastic Models of Reliability and Maintenance: An OverviewAn overview of some mathematical models of reliability and maintenance is presented. Emphasis is laid on some more recent developments, which use tool from the theory of stochastic processes. This framework allows to observe reliability systems on different information levels and to optimize maintenance actions.

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Optimal Replacement of Monotone Repairable SystemsIn this chapter we study the optimal replacement problem of a monotone (coherent) system comprising n components. The optimality criterion is the long run expected cost per unit of time. Emphasis is placed on situations where the repair actions can be modelled as “minimal” repairs.

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Fatigue Crack Growthfor the mean behavior. After a consideration of experimental data reported by Virkler et al. (1979), we propose a continuous semimarkov process to model crack growth. The model accounts for the material randomness and sees crack as a motion in a random field.

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Availability Analysis of Monotone Systemse the performance of the system. Relevant performance measures are presented and methods for computing these are discussed. Emphasis is placed on analysing the probability distribution of the downtime of the system (more generally the lost throughput if a flow network is considered).