Research Article

A Hybrid Domain Degradation Feature Extraction Method for Motor Bearing Based on Distance Evaluation Technique

Table 2

Distance evaluation factors and their differences between and .

Feature parameter

0.03150.0811−0.0496
0.04090.0849−0.0440
0.0030−0.0026
0.00230.0028
0.00640.0321−0.0258
0.01740.0281−0.0107
0.01110.0951−0.0840
0.00370.0927−0.0890
0.01140.00820.0032
0.00180.0082−0.0064
0.04520.00370.0415
0.00440.0079−0.0035
0.01180.00690.0050
0.00380.0062−0.0024
0.07650.0972−0.0206
0.19380.13320.0606
0.38340.24530.1381
0.48350.33540.1482
0.31040.27430.0361
0.53670.27170.2650
0.27000.8912−0.6212
110
0.02570.01010.0156
0.02570.01190.0138