A compressor is designed for 5 years operation. There are two significant contributions to the item failure. The first is due to wear of the thrust bearing and is described by a Weibull distribution with A=7.5 years and B=2.5. The second, which includes all other causes, is a constant failure rate of .013 per year. A maintenance plan consists of replacing the thrust bearing is proposed for every two years (the first replacement is at year 2 and the second replacement is at year 4). If the reliability of the 5-year design life of the compressor is to be maintained to at least 0.9 by replacing the thrust bearing, verify if this proposed maintenance plan meets the reliability requirement. You need to solve this problem using formula and analytically. Then plot the reliability as a function of time for 5-year duration using Excel.

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To verify if the proposed maintenance plan of replacing the thrust bearing every two years maintains ... View the full answer