Stochastic analysis of a non-identical two-unit parallel system with common-cause failure using GERT technique

This paper presents a stochastic analysis of a non-identical two-unit parallel system with common-cause failure by Graphical evaluation and review technique (GERT). The failure and repair rates are constants for the units. Steady-state availability, mean-time to system failure (MTSF), and busy and idle times of the service facility are obtained. Some numerical results of steady-state availability and mean-time to system failure are calculated and plotted.