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

Table 3

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

		Kurtosis	CF	CPF	NSVP
EMD	Gear II (healthy)	2.167	2.989	1.625	0.288
	Gear III (faulty)	3.980	4.146	1.579	0.261
	Gear III versus gear II [%]	83.697	38.733	−2.756	−9.628
EEMD	Gear II (healthy)	2.062	2.569	1.329	0.007
	Gear III (faulty)	2.855	3.578	1.562	0.334
	Gear III versus gear II [%]	38.482	39.266	17.488	4958.513
CEEMDAN	Gear II (healthy)	2.039	2.357	1.309	0.013
	Gear III (faulty)	2.647	3.428	1.469	0.351
	Gear III versus gear II [%]	29.847	45.404	12.228	2528.605