Algerian Journal of Signals and Systems
Volume 2, Numéro 4, Pages 199-206
2017-12-31

Dependability Measures Estimation Using Binomial Failure Rate Model

Authors : Chebila Mourad . Inal Fares .

Abstract

Dependability of multi-component systems is highly impacted by common cause failures, what necessitates the appropriate consideration of such events in the dependability modeling process. This paper is dedicated to study the application of the binomial failure rate model in handling the contribution of common cause failures to estimate two key dependability indicators, namely: unavailability and unconditional failure intensity, using fault tree analysis with the probabilistic treatment of the associated parameter uncertainty. The results of such application are thoroughly compared to those of the traditional Beta factor model to highlight the possible differences.

Keywords

Dependability, common cause failure, Beta factor model, Binomial failure rate model