There is a proposal to replace the entire system with a single generator that has a...
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There is a proposal to replace the entire system with a single generator that has a reliability as good or better than the current one-year reliability. 6. What would be the required MTBF (in hours) for the new generator (assume exponential and 8760 hours/year)? 7. How many total test hours should be allocated for the new generator (assuming 1 failure is allowed) at 50% confidence? 8. Suppose the budget only supported 30,000 total test hours for the new generator. What is the demonstrated MTBF (EL) at 50% confidence if no failures were observed? Was the requirement demonstrated? Consider the original system diagram with Generator B as continuously operating (not in standby mode) with no load sharing. 9. What is the static relaibility of the system for this situation? 10. Convert the block diagram to a Fault Tree. Calculate the probability of the top-level event (system failure)? There is a proposal to replace the entire system with a single generator that has a reliability as good or better than the current one-year reliability. 6. What would be the required MTBF (in hours) for the new generator (assume exponential and 8760 hours/year)? 7. How many total test hours should be allocated for the new generator (assuming 1 failure is allowed) at 50% confidence? 8. Suppose the budget only supported 30,000 total test hours for the new generator. What is the demonstrated MTBF (EL) at 50% confidence if no failures were observed? Was the requirement demonstrated? Consider the original system diagram with Generator B as continuously operating (not in standby mode) with no load sharing. 9. What is the static relaibility of the system for this situation? 10. Convert the block diagram to a Fault Tree. Calculate the probability of the top-level event (system failure)?
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