SENSITIVITY OF k-OUT-OF-n SYSTEMS STEADY-STATE CHARACTERISTICS

This article deals with sensitivity analysis using analytical methods, as well as a numerical study. On the example of a repairable k-out-of-n system, which is one of the most common ways to improve reliability, it is shown that under rare failures condition and a fixed average repair time, the steady-state characteristics of the system are insensitive to the shape of the repair time distribution as well as its coefficient of variation.