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Browse Journals & Magazines > Reliability, IEEE Transaction ...> Volume:60 Issue:1 Help

Periodic Inspection Optimization Models for a Repairable System Subject to Hidden Failures

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2 Author(s)
Taghipour, S. ; Dept. of Mech. & Ind. Eng., Univ. of Toronto, Toronto, ON, Canada ; Banjevic, D.

This paper proposes a model to find an optimal periodic inspection interval over finite and infinite time horizons for a multi-component repairable system subject to hidden failures. The components' failures can only be rectified at periodic inspections, when a failed component is either minimally repaired, or replaced with some age dependent probabilities. We calculate the excepted cost with delayed replacement or minimal repair of a component. Recursive procedures are developed to calculate probabilities of failures in every interval, expected number of minimal repairs, and expected downtimes for optimization over finite and infinite time horizons. Numerical examples of the calculation of the optimal inspection frequencies are given. The data used in the examples is adapted from a hospital's maintenance data for a general infusion pump.

Published in:
Reliability, IEEE Transactions on  (Volume:60 ,  Issue: 1 )

Date of Publication: March 2011

Page(s):
275 - 285
ISSN :
0018-9529
INSPEC Accession Number:
11837746
Digital Object Identifier :
10.1109/TR.2010.2103596
Product Type:
Journals & Magazines
Date of Publication :
13 January 2011
Date of Current Version :
28 February 2011
Issue Date :
March 2011
Sponsored by :
IEEE Reliability Society

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