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

Table 2

Optimal search results.

Load	0 hp	1 hp	2 hp
The calculated value of the fault frequency (Hz)	119.39	118.01	116.61
Fault measured value (Hz)	119.4	117.9	116.5
[α, K]	[2000, 6]	[1600, 6]	[1400, 8]
Optimal IMF	IMF4	IMF4	IMF6
Normalized center frequency	0.4947	0.4224	0.3644
LMMSE	0.3228	0.3231	0.3275