A fuzzy-based reliability approach to evaluate basic events of fault tree analysis for nuclear power plant probabilistic safety assessment

A safety related perspective for the power supply systems in railway industry

“…In spite of all the drawbacks of Fault Tree analysis, it is frequently used. Collong and Kouta evaluated probability of explosion and identified critical failure sequences of a fuel cell system using Fault Trees [3].To overcome the drawbacks of FTA modified versions of Fault Tree method such as conditional Fault Tree [20] or combination of methods such as fuzzy logic [16] and generic algorithm [12] with FTA can be used. Detailed modelling capabilities of Markov modelling makes it a better alternative and is used by many researchers when modelling safety related systems for instance systems with selfdiagnostic components [23] and redundant standby safety systems [8] and is also used for different purposes such as SIL verification [21] and performance assessments [15].…”

Reliability Study of the AP1000 Passive Safety System by Fuzzy Approach

“…Experts may be selected by considering their publications and working experiences related to the AP1000 passive safety system. Recommendations from a wide range of experts can be another important point for the expert selection [18,19].…”

“…In the meantime, fuzzy reliability approach has been developed and successfully applied for reliability study of existing nuclear power plants [18][19][20]. It utilizes the concept of failure possibilities to qualitatively describe component failure characteristics and membership functions of triangular fuzzy numbers to represent qualitative failure possibilities in mathematical form.…”

Organizational change in quality management aspects: a quantitative proposal for classification

“…According to Purba (2014), an expert is someone with multiple skills who understands the working environment, has substantial training in and knowledge of the system being evaluated, and can provide judgments about each of the elements of the system. Therefore, the evaluation of alternatives according to the implementation cost (Brazilian currency, R$) and duration of implementation of the change (in months) were determined using face values.…”