Reliability in automotive engineering by fuzzy rule-based FMEA

Abstract

The Failure Modes and Effects Analysis (FMEA) is a reliability estimation method intended to identify potential failures which have significant consequences affecting the system performance. In a Failure Modes and Effects Analysis the Probability of Failure (PoF), Consequence of Failure (CoF) and Detectability of Failure (DoF) may be determined using engineering judgment and/or based mathematical models, where the result is expressed in a term. The terms qualities and quantities are sometimes used to distinguish these methods. The fuzzy FMEA is a quantitative method of reliability or risk analysis which involves the study of the failure modes can occur in every part of an integrated system. The aim of this paper is to show the possibility of use of fuzzy set theory to estimate failure criticality level theoretically and practically by exemplification of case study of process' risk assessment. © Springer-Verlag 2013.