Ai is Inherent availability, Aa is Achieved availability, Ao is Operational availability, Mct is the mean corrective time, M is Mean Active
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80165898016585

Ai is

Inherent availability, Aa is Achieved availability, Ao is Operational availability, Mct is the mean corrective time, M is Mean Active Maintenance Time, MTBM is the mean time between maintenance, MTBF is mean time between failures.


All attached formulas is to help you understand the question. Please help!


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You are provided with the following information regarding a svstem that has been designed hvvour companyr of
engineers: I Failure rate J. =fl.Dfl1
I Total operation time=20,flflfl hours I MDT=Mean downtime = 1’2 hours
I Total number of maintenance incidents = 100 I Mean preventive maintenance time = 5 hours
I Mean logistic plus administrative time =48 hours Estimate the following values: 21;, A“, A“ m, use“, was, A?

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