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An Optimal Maintenance Policy for a 2-Unit Parallel System with Degraded States

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2 Author(s)
Hisashi Mine ; Department of Applied Mathematics and Physics, Faculty of Engineering, Kyoto University, Kyoto, Japan. ; Hajime Kawai

The system consists of two identical units in parallel with good, degraded, and failed states. We discuss a maintenance policy that maximizes the expected net profit-rate from the system over an infinite time span. General equations which describe the system behavior under a certain maintenance policy are derived. The optimal maintenance policy can be determined by solving those equations.

Published in:

IEEE Transactions on Reliability  (Volume:R-23 ,  Issue: 2 )