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

Table 8

Calculation results for the residual stress parameters of the outer surface of the bearing inner rings (the parallel test).

Sample number	Mean value (MPa)	Uncertainty (MPa)	Grey confidence level (%)
1	−238	46.1	96.685
2	−340	51.3	93.5
3	−215	35	100 (intrinsic sequence)
4	−174	79.7	90.975
5	−236	69.4	92.38