Research Article
Wear Calculation-Based Degradation Analysis and Modeling for Remaining Useful Life Prediction of Ball Screw
Figure 10
Fitting curve of working condition 9 (axial load is 2 kN and rotational speed is 800 r/min). (a) Cross-validation 1, accelerometer 3. (b) Cross-validation 2, accelerometer 2. (c) Cross-validation 3, accelerometer 1.
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