A Potential Failure Mode and Effect Analysis Method of Electromagnet Based on Intuitionistic Fuzzy Number in Manufacturing Systems

Table 3

S assessment criteria.

Influence	Assessment criteria: severity of consequences (customer impact)	Grade
Failure of laws and regulations affecting safety or government	Work safety is affected or government regulations are not met without any warning	DH
	In case of warning, it will affect work safety or not comply with government regulations	EH
Loss or reduction of expected function	Loss of basic function (electromagnet does not work and does not affect safety)	VH
	Expected function reduction (electromagnet can work, performance level is reduced)	H
Loss or reduction of secondary function	Loss of secondary function (failure of comfort and convenience function)	MH
	Lower secondary function (lower comfort and convenience function level)	M
Customer feedback	Electromagnets work, and most customers (>75%) perceive noise and appearance	ML
	Electromagnets work, and some customers (50%) perceive noise and appearance	L
	The electromagnet works, and a small number of customers (<25%) are aware of noise and appearance	VL
No impact	No detectable impact	EL