Research Article
Experimental Investigation for Fault Diagnosis Based on a Hybrid Approach Using Wavelet Packet and Support Vector Classification
Table 5
Gear test samples.
| Cases | Energy ratios in each frequency band | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Normal
| 0.5055 | 0.3774 | 0.0664 | 0.0074 | 0.0285 | 0.0099 | 0.0034 | 0.0015 | 0.4699 | 0.3989 | 0.0656 | 0.0089 | 0.0345 | 0.0160 | 0.0048 | 0.0014 | 0.4881 | 0.4068 | 0.0555 | 0.0088 | 0.0257 | 0.0099 | 0.0038 | 0.0014 |
| Broken teeth | 0.5709 | 0.3092 | 0.0712 | 0.0152 | 0.0235 | 0.0068 | 0.0027 | 0.0006 | 0.5425 | 0.3387 | 0.0668 | 0.0163 | 0.0238 | 0.0069 | 0.0038 | 0.0012 | 0.5727 | 0.3254 | 0.0645 | 0.0111 | 0.0176 | 0.0059 | 0.0022 | 0.0006 |
| Wear
| 0.8120 | 0.1040 | 0.0188 | 0.0055 | 0.0330 | 0.0255 | 0.0009 | 0.0003 | 0.8267 | 0.0975 | 0.0175 | 0.0055 | 0.0301 | 0.0215 | 0.0009 | 0.0003 | 0.8521 | 0.0831 | 0.0190 | 0.0061 | 0.0236 | 0.0141 | 0.0008 | 0.0010 |
| Missing teeth | 0.1902 | 0.3251 | 0.1063 | 0.0116 | 0.1712 | 0.1581 | 0.0334 | 0.0041 | 0.1932 | 0.3082 | 0.0844 | 0.0244 | 0.1607 | 0.1909 | 0.0299 | 0.0083 | 0.2200 | 0.2558 | 0.1340 | 0.0092 | 0.1816 | 0.1727 | 0.0212 | 0.0055 |
|
|