COST ANALYSIS OF A TWO-UNIT COLD STANDBY REDUNDANT SYSTEM INVOLVING COMMON CAUSE FAILURES AND PREVENTIVE MAINTENANCE

摘要

In this study, the Mean Time to System Failures (MTSF), steady state availability and the profit function of a two-unit cold standby repairable redundant system involving common-cause failures and preventive maintenance were discussed. We analyzed the system by using Kolmogorov's forward equations method. Some particular cases have also been discussed graphically. The results indicated that the system with preventive maintenance is better than the system without preventive maintenance. These results indicated that the better maintenance of parts of the system originated better reliability and performance of the system.