FUZZY SETS APPROACH FOR DETERMINING FAILURE RISK INDICATORS

Florin BLAGA, Alin Florin POP, Cosmin GHERGHEA, Constantin BUNGAU, Voichiţa HULE, Claudiu INDRE

Abstract


Carrying out of the manufacturing processes requires the proper functioning of the machines, equipment, and devices that participate in the process. In these conditions, the assessment of the risks of failure of the various components of the machines becomes a problem that requires a solution as appropriate as possible to the conditions of the real systems. The paper proposes three procedures based on fuzzy sets to determine the failure risk. For each group of CNC machine tools and for each type of failure, two parameters were quantified: failure times (failure duration) and the number of failures. By means of the fuzzy sets, the following were determined: the risk indicator due to failure times, the risk indicator due to the number of failures and the global (cumulative) risk indicator

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References


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