Mean Time To System Failure And Availability Analysis Of A Repairable 2:4:: Good System
Keywords:
2-out-of-4 good system, Redundancy, Mean time to system failure, System availability, RPGT, Markov process, Repairable systemsAbstract
This study analyzes the mean time to system failure (MTSF) and availability of a repairable 2-out-of-4 (2:4) good redundant system using the Regenerative Point Graphical Technique (RPGT) and Markov processes. The system, relevant to Rajasthan’s industrial sector, consists of four identical units where any two must function for system success and the remaining two act as cold standbys. The model incorporates practical assumptions including a single always-available repairman, prioritized repair order, and constant failure and repair rates. The results provide actionable guidance for maintenance scheduling, resource allocation, and operational policy, supporting managers in optimizing uptime and efficiency for critical infrastructure systems.
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