There are two candidate suppliers for a compressor as shown in Table 1: Table 1: Failure...
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There are two candidate suppliers for a compressor as shown in Table 1: Table 1: Failure and repair information for the two candidate suppliers Unit Failure Repair Concept Cost Repair Distribution Weibull with 3= 2.1 and 8= 8 hr RM655 Candidate Distribution Based on power law intensity function with A = 10 and 3=1.4 RM540 Weibull with B= 2.1 and 0 = 4500 days *Labor cost should be based upon MTTR The design life of the compressor is 6250 days. Repair labor rate is RM60 per hour. i) Estimate the mean time to fail (MTTF) and mean time to repair (MTTR) for both candidates. ABC DEF Lognormal with a=0.5 and med = exp(u) = 2 hr Minimal repair with parts cost = RM120 + labor Renewal process remove & replace at unit cost + labor ii) Determine the expected number of failures and the reliability of both candidates over 6 years (2190 days) warranty. Assume no preventive maintenance. iii) The repair time of a failed compressor is typically done within 8 hours work a day. Find the percent repairs for both supplier that will meet this specification (R8 hours)). iv) Based upon the unit cost, expected number of failures, and the expected repair cost, calculate the life cycle costs of the two candidates over the compressor design life. Assume no preventive maintenance. Cost are calculated using Equation 1: Cost = C + m(t)(C₁+C₂MTTR) where Cuis unit cost, m(t) is the number of failures, Cy is fixed repair cost, and Cyis variable repair cost. v) Evaluate the two candidate suppliers to determine the best supplier for you. Justify your answer. There are two candidate suppliers for a compressor as shown in Table 1: Table 1: Failure and repair information for the two candidate suppliers Unit Failure Repair Concept Cost Repair Distribution Weibull with 3= 2.1 and 8= 8 hr RM655 Candidate Distribution Based on power law intensity function with A = 10 and 3=1.4 RM540 Weibull with B= 2.1 and 0 = 4500 days *Labor cost should be based upon MTTR The design life of the compressor is 6250 days. Repair labor rate is RM60 per hour. i) Estimate the mean time to fail (MTTF) and mean time to repair (MTTR) for both candidates. ABC DEF Lognormal with a=0.5 and med = exp(u) = 2 hr Minimal repair with parts cost = RM120 + labor Renewal process remove & replace at unit cost + labor ii) Determine the expected number of failures and the reliability of both candidates over 6 years (2190 days) warranty. Assume no preventive maintenance. iii) The repair time of a failed compressor is typically done within 8 hours work a day. Find the percent repairs for both supplier that will meet this specification (R8 hours)). iv) Based upon the unit cost, expected number of failures, and the expected repair cost, calculate the life cycle costs of the two candidates over the compressor design life. Assume no preventive maintenance. Cost are calculated using Equation 1: Cost = C + m(t)(C₁+C₂MTTR) where Cuis unit cost, m(t) is the number of failures, Cy is fixed repair cost, and Cyis variable repair cost. v) Evaluate the two candidate suppliers to determine the best supplier for you. Justify your answer.
Expert Answer:
Answer rating: 100% (QA)
i MTTF 11625010100 625 days The mean time to fail MTTF for candidate DE is MTTF 11625005100 12500 da... View the full answer
Related Book For
University Physics with Modern Physics
ISBN: 978-0133977981
14th edition
Authors: Hugh D. Young, Roger A. Freedman
Posted Date:
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