Digraph and matrix approach for risk evaluations under Pythagorean fuzzy information
作者：
Highlights：
• We propose a novel technique for risk evaluation in FMEA.
• New triangular Pythagorean fuzzy numbers describe interrelations between risk factors.
• Defuzzify triangular Pythagorean fuzzy numbers to calculate risk priority indexes.
• Visual description of risk factors in the form of a Pythagorean fuzzy digraph.
• Case study of a steam valve system shows the potential applications of the model.
摘要
•We propose a novel technique for risk evaluation in FMEA.•New triangular Pythagorean fuzzy numbers describe interrelations between risk factors.•Defuzzify triangular Pythagorean fuzzy numbers to calculate risk priority indexes.•Visual description of risk factors in the form of a Pythagorean fuzzy digraph.•Case study of a steam valve system shows the potential applications of the model.
论文关键词：Triangular Pythagorean fuzzy numbers,FMEA,Risk factor Pythagorean fuzzy digraph,Interrelation matrices,Implementation,Discussions and comparative analysis
论文评审过程：Received 1 April 2020, Revised 1 September 2020, Accepted 17 December 2020, Available online 24 December 2020, Version of Record 23 January 2021.
论文官网地址：https://doi.org/10.1016/j.eswa.2020.114518
