Question: Reliability data on an automated production machine are mean time between failures = 37.4 hr and mean time to repair = 34min. The utilization of

Reliability data on an automated production machine are mean time between failures = 37.4 hr and mean time to repair = 34min. The utilization of the machine is 89%. The fraction defect rate of the parts made on the machine is 1.1%. Its rated operating speed is 75 parts/hr, but it only operates at 62 parts/hr. (a) What is the overall equipment effectiveness of this machine? (b) The reliability and fraction defect rate would be difficult to improve upon, but utilization and rated speed could be increased. What values of utilization and operating speed would allow the overall equipment effectiveness to be increased to 85%.

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