Question
Your company provides a 3-year warranty for all system failures that are not the fault of the user and provides in house repairs. (1) Calculate
Your company provides a 3-year warranty for all system failures that are not the fault of the user and provides in house repairs.
(1) Calculate the MTBF assuming that 75 mobile phones were tested for 250 hours each.While testing 7 mobile phones experienced a failure that would be under warranty.
(2) Calculate the MTTR assuming there were 3 individuals working 15 hours each to troubleshoot and repair the 7 failures.
(3) Calculate the Operational Availability.
(4) Discuss why the objective to maximize Mean Time Between Failures (MTBF) and Availability, while minimizing Mean Time to Repair (MTTR) will be critical to the new design. What design characteristics do you think may help to improve these metrics over the lifecycle of the system?
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Probability and Random Processes With Applications to Signal Processing and Communications
Authors: Scott Miller, Donald Childers
2nd edition
123869811, 978-0121726515, 121726517, 978-0130200716, 978-0123869814
