Application of Variational Mode Decomposition and Multiscale Permutation Entropy in Rolling Bearing Failure Analysis

Table 1

Comparison of calculation results of different thresholds.

	R = 0.1	R = 0.15	R = 0.2	R = 0.25
Normal status	0.5914	0.7515	0.8424	0.8488
Inner ring fault	0.6892	0.8767	0.9222	0.9068
Roller fault	0.6896	0.8851	0.9218	0.9089
Outer ring fault	0.6844	0.8905	0.9241	0.9169