ABSTRACT
Cepin & Mavko (1997) established an unavailability time dependent probabilistic model adaptable to several test strategies. Martorell et al. (2000) refined and applied the unavailability model developed in Martorell et al. (1995) for optimization of test intervals for a High Pressure Injection System. Bukowski (2001) presented a development that permitted to include periodic inspections and repairs into Markov models of safety-critical systems. Vaurio (2003) developed equations for including common cause failures in unavailability fault trees, utilizing both implicit and explicit methods for standby safety systems, and addressed the effects of test intervals and test staggering. Lapa et al. (2003) presented a primer approach to include non-periodic tests (within an established period) adapted to optimization seasonal constrained problems. The problem studied considered a single component.
