Safety Risk Assessment; Using Fuzzy Failure Mode and Effect Analysis and Fault Tree Analysis

Transactions on Fuzzy Sets and Systems

مقاله 10، دوره 1، شماره 2، بهمن 2022، صفحه 90-98   

نوع مقاله: Original Article

شناسه دیجیتال (DOI): 10.30495/tfss.2022.1954304.1016

نویسندگان

Mazdak Khodadadi-Karimvand^{* 1، 2}؛ Sara Taherifar²

¹Department of Industrial Engineering, Najafabad Branch, Islamic Azad University, Iran.

²Department of Safety Engineering, Faculty of Engineering, University of Science and Culture, Tehran, Iran.

چکیده

The failure mode and effects analysis (FMEA) is a qualitative‎, ‎Inductive and effective method for detecting errors‎, ‎faults‎, ‎and failures in a system and fuzzy logic can improve that technique with more logical outputs‎. ‎Moreover‎, ‎the fault tree analysis (FTA) as a probabilistic risk assessment method is among the effective technique for calculating the probability of errors‎, ‎faults‎, ‎failures‎, ‎reliability and safety integrity level (SIL) verification resulting in certain events at higher levels‎. ‎The FTA also detects the main causes of events in complicated systems‎. ‎Although this technique appears to be time-consuming in systems with many diverse components‎, ‎it is considered a powerful tool‎. ‎In this paper‎, ‎the fuzzy FMEA analyzes the failure modes in a hypothetical system‎. ‎After that‎, ‎the process with the highest risk is selected as the input of an FTA‎. ‎According to the qualitative and quantitative analysis of FTAs‎, ‎a series of corrective actions will be proposed to reduce the failure probability‎.

کلیدواژه‌ها

Fault Tree Analysis (FTA)؛ Failure Mode and Effect Analysis (FMEA)؛ Qualitative Risk Assessment. Probabilistic Risk Assessment (PRA)؛ Fuzzy Number

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