Grey Relation Evaluation and Truth Value Fusion of Rolling Bearing Multisource Residual Stress

Table 6

Calculation results for the residual stress parameters of the small end faces of bearing inner rings.

Sample number	Mean value (MPa)	Uncertainty (MPa)	Grey confidence level (%)
1	−651	189.3	85.399
2	−650	136	100 (intrinsic sequence)
3	−650	172.1	94.789
4	−564	165.4	78.975
5	−1002	243.7	83.8