An engine cooling system of a bus vehicle consists of the following components with the ARINC...
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An engine cooling system of a bus vehicle consists of the following components with the ARINC weightings, MTBF, and MTTR given below: No. 1 2 3 4 5 6 7 Components Water Pump Thermostat b) c) Pipe Radiator Cooling Fan Coolant Tank Engine Control Unit ARINC Weighting 0.20 0.06 0.40 0.08 0.10 0.12 0.04 If the MTBF target of the engine cooling system is 8,000 hours, a) Calculate the target failure rate of the engine cooling system. MTBF (hours) 50,000 100,000 15,000 120,000 100,000 80,000 200,000 Calculate the target MTBF of each component. MTTR (hours) 12 2 20 10 8 5 4 Calculate the target failure rates of each component using ARINC method of reliability target apportionment. d) Determine which component(s) fails to meet the reliability targets by ARINC method. e) Explain how the availability of the engine cooling system can most effectively be improved. An engine cooling system of a bus vehicle consists of the following components with the ARINC weightings, MTBF, and MTTR given below: No. 1 2 3 4 5 6 7 Components Water Pump Thermostat b) c) Pipe Radiator Cooling Fan Coolant Tank Engine Control Unit ARINC Weighting 0.20 0.06 0.40 0.08 0.10 0.12 0.04 If the MTBF target of the engine cooling system is 8,000 hours, a) Calculate the target failure rate of the engine cooling system. MTBF (hours) 50,000 100,000 15,000 120,000 100,000 80,000 200,000 Calculate the target MTBF of each component. MTTR (hours) 12 2 20 10 8 5 4 Calculate the target failure rates of each component using ARINC method of reliability target apportionment. d) Determine which component(s) fails to meet the reliability targets by ARINC method. e) Explain how the availability of the engine cooling system can most effectively be improved.
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Answer rating: 100% (QA)
a To calculate the target failure rate of the engine cooling system we can use the formulaFailure rate 1 MTBFTherefore the target failure rate of the ... View the full answer
Related Book For
Introduction To Statistical Investigations
ISBN: 9781118172148
1st Edition
Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy
Posted Date:
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