Research Article
Wear Calculation-Based Degradation Analysis and Modeling for Remaining Useful Life Prediction of Ball Screw
Table 3
Determination coefficients
between linear model and degradation path.
| ā | Working condition 1 | Working condition 5 | Working condition 9 | ā | Acc 1 | Acc 2 | Acc 3 | Acc 1 | Acc 2 | Acc 3 | Acc 1 | Acc 2 | Acc 3 |
| Cross-validation 1 | 0.4992 | 0. 5355 | 0. 5478 | 0. 4881 | 0. 5657 | 0. 5671 | 0. 6976 | 0. 7106 | 0. 7645 | Cross-validation 2 | 0.4848 | 0. 5041 | 0. 5166 | 0. 4783 | 0. 5751 | 0. 5781 | 0. 7211 | 0. 7262 | 0. 7635 | Cross-validation 3 | 0.4929 | 0. 5213 | 0. 5336 | 0. 4839 | 0. 5713 | 0. 5733 | 0. 7167 | 0. 7290 | 0. 7659 |
| Average | 0. 4923 | 0. 5203 | 0. 5327 | 0. 4835 | 0. 5707 | 0. 5728 | 0. 7118 | 0. 7219 | 0. 7647 |
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