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A quetion about Safety and Risk Engineering A Canister P rotor used in an AC motor manufactured by the ABC Company has a time to failure that is
A quetion about Safety and Risk Engineering
A Canister P rotor used in an AC motor manufactured by the ABC Company has a time to failure that is lognormal with an MTTF of 3600 operating hours and a shape parameter equal to 2.
Current preventive maintenance practices require the rotor to be replaced every 100 operating hours. Determine the probability that a rotor will survive the 100 hours.
If at the end of 100 operating hours, the maintenance department neglects to replace the rotor, what is the probability that it will survive until the next scheduled maintenance (assume that it has not failed at 100 hour).
From the above analysis, what can you say about the hazard rate and preventive maintenance replacement policy?
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