Research Article
Evaluation and Prediction Method of Rolling Bearing Performance Degradation Based on Attention-LSTM
Table 3
Linear weighted value of each indicator.
| Features | Evaluation indicators | Linear weighted | Corr | Mon | Rob | J |
| Square root amplitude | 0.0044 | 0.5016 | 0.9844 | 0.4052 | Root mean square | 0.9007 | 0.5072 | 0.9816 | 0.7265 | Peak to peak value | 0.2762 | 0.5114 | 0.8660 | 0.4867 | Peak value | 0.0167 | 0.4947 | 0.8522 | 0.3842 | Kurtosis | 0.0064 | 0.5039 | 0.8637 | 0.3869 | Waveform index | 0.0058 | 0.5118 | 0.9950 | 0.4123 | Margin index | 0.0018 | 0.5104 | 0.8214 | 0.3813 | Peak indicator | 0.0004 | 0.5086 | 0.8239 | 0.3803 | Average amplitude | 0.0723 | 0.5049 | 0.9841 | 0.4309 | Mean value | 0.0532 | 0.5066 | 0.8856 | 0.4084 | Pulse indicator | 0.3452 | 0.4823 | 0.8432 | 0.4938 | Kurtosis index | 0.0081 | 0.5178 | 0.9236 | 0.4041 |
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