Diagnosis of Localized Faults in Multistage Gearboxes: A Vibrational Approach by Means of Automatic EMD-Based Algorithm

Table 2

CIs for the simulated signal with localized fault in gear II.

		Kurtosis	CF	CPF	NSVP
EMD	Gear II (faulty)	2.395	4.017	1.854	0.310
	Gear III (healthy)	2.742	2.673	1.083	0.0796
	Gear II versus gear III [%]	−12.671	50.269	71.244	291.452
EEMD	Gear II (faulty)	2.484	4.494	1.872	0.173
	Gear III (healthy)	2.165	2.014	1.036	0.022
	Gear II versus gear III [%]	14.713	123.180	80.722	667.777
CEEMDAN	Gear II (faulty)	2.340	4.284	1.857	0.205
	Gear III (healthy)	2.177	1.992	1.027	0.016
	Gear II versus gear III [%]	7.487	115.058	80.777	1156.891