Wu Tang

A two-stage method for remaining useful life prediction of rolling bearings using an envelope-spectrum Wasserstein health indicator and ExtraTrees-guided residual correction

Accurate remaining useful life (RUL) prediction of rolling bearings is essential for predictive maintenance and the safe operation of rotating machinery. However, fault impulses are often weak during early degradation, limiting the ability of conventional statistical features to represent incipient damage. Bearings als...