Research Article
Experimental Investigation for Fault Diagnosis Based on a Hybrid Approach Using Wavelet Packet and Support Vector Classification
Table 4
Gear training samples.
| Cases | Energy ratios in each frequency band | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Normal | 0.5022 | 0.3977 | 0.0530 | 0.0077 | 0.0250 | 0.0098 | 0.0034 | 0.0012 | 0.4511 | 0.4109 | 0.0716 | 0.0079 | 0.0407 | 0.0128 | 0.0038 | 0.0013 | 0.4911 | 0.3799 | 0.0651 | 0.0080 | 0.0360 | 0.0150 | 0.0037 | 0.0011 |
| Broken teeth | 0.5591 | 0.3319 | 0.0615 | 0.0152 | 0.0224 | 0.0065 | 0.0029 | 0.0007 | 0.6000 | 0.2979 | 0.0578 | 0.0130 | 0.0226 | 0.0060 | 0.0023 | 0.0005 | 0.5589 | 0.3253 | 0.0686 | 0.0146 | 0.0216 | 0.0073 | 0.0031 | 0.0006 |
| Wear
| 0.8194 | 0.1025 | 0.0226 | 0.0059 | 0.0266 | 0.0206 | 0.0018 | 0.0006 | 0.8289 | 0.0902 | 0.0178 | 0.0056 | 0.0380 | 0.0173 | 0.0016 | 0.0005 | 0.8080 | 0.1084 | 0.0209 | 0.0061 | 0.0391 | 0.0155 | 0.0018 | 0.0003 |
| Missing teeth | 0.2358 | 0.1971 | 0.2427 | 0.0528 | 0.1688 | 0.0814 | 0.0177 | 0.0035 | 0.1239 | 0.2404 | 0.1706 | 0.0746 | 0.2052 | 0.1422 | 0.0387 | 0.0044 | 0.2064 | 0.3353 | 0.1174 | 0.0537 | 0.1634 | 0.1051 | 0.0141 | 0.0046 |
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