Fuzzy failure modes and effects analysis with summarized center of gravity defuzzification

The Fuzzy Failure Modes and Effects Analysis (F-FMEA) is a rule based method of reliability estimation intended to identify potential failures which have significant consequences affecting the system performance. In a F-FMEA 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 terms. The Classical F-FMEA cannot handle properly the extremenesses according to the authors. This paper proposes a new method for elimination of the problem.