| Article ID: | iaor20063117 |
| Country: | Netherlands |
| Volume: | 91 |
| Issue: | 3 |
| Start Page Number: | 362 |
| End Page Number: | 369 |
| Publication Date: | Mar 2006 |
| Journal: | Reliability Engineering & Systems Safety |
| Authors: | Sheu Shey-Huei, Lin Yuh-Bin, Liao Gwo-Liang |
| Keywords: | preventative maintenance |
This study considers periodic preventive maintenance policies, which maximize the availability of a repairable system with major repair at failure. Three types of preventive maintenance are performed, namely: imperfect preventive maintenance, perfect preventive maintenance and failed preventive maintenance. The probability that preventive maintenance is perfect depends on the number of imperfect maintenances conducted since the previous renewal cycle, and the probability that preventive maintenance remains imperfect is not increasing. The optimum preventive maintenance time that maximizes availability is derived. Various special cases are considered. A numerical example is given.