... diagnosis method of rolling bearing using refined composite multiscale peak-to-peak normalized dispersion entropy (RCMPNDE) and sparrow search algorithm optimized probabilistic neural network (SSA-PNN) is proposed. First, coarse-graining employs the peak-to-peak value calculation instead of the segmented...

..., the probabilistic neural network (PNN) was used for detection of contamination. In reality, any kind of lubrication degradation (solid, liquid, and chemical) can potentially change the nature of surface (in relative motion) interactions. Since lubrication degradation promotes mechanical interaction...