Fault Diagnosis of Variable Load Bearing Based on Quantum Chaotic Fruit Fly VMD and Variational RVM

Table 3

Experimental data under different fault degrees.

Damage degree	Minor	Moderate	Severe
Fault frequency calculated value (Hz)	116.61	116.61	116.61
Measured value (Hz)	116.5	116.5	116.5
[α, K]	[1800, 6]	[1600, 6]	[1400, 8]
Optimal IMF	IMF4	IMF4	IMF6
Normalization center frequency	0.4586	0.4624	0.4667
LMMSE	0.4875	0.3994	0.3211