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An optimal inspection and replacement policy is discussed for a unit which assumes any one of several Markov states. The policy evaluation function is the s-expected cost-per-unit-time over an infinite time span. The problem is formulated as a semi-Markov decision process with a modified policy-improvement routine. Some properties of the optimal policy are discussed, for example, the control limit rule holds and the inspection time interval becomes shorter as degradation progresses.
Published in:
Reliability, IEEE Transactions on
(Volume:R-24
,
Issue:
5
)
Date of Publication: Dec. 1975
- Page(s):
- 305 - 309
- ISSN :
- 0018-9529
- Digital Object Identifier :
- 10.1109/TR.1975.5214918
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 25 August 2009
- Issue Date :
- Dec. 1975
- Sponsored by :
- IEEE Reliability Society
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