Research Article
Bearing Condition Recognition and Degradation Assessment under Varying Running Conditions Using NPE and SOM
Table 1
Bearing feature generation.
| | Time domain features | Frequency domain features |
| | Mean square |
amplitude at rotating frequency | | Kurtosis | amplitude at | | Mean | amplitude at BPFI | | Skewness | amplitude at 2BPFI | | Peak value | amplitude at BPFO | | Rms | amplitude at 2BPFO | | Waveform factor | amplitude at FTF | | Crest factor | amplitude at 2FTF | | Impulse factor | amplitude at BSF | | Clearance factor | amplitude at 2BSF |
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