Vibration Signature Analysis and Parameter Extractions on Damages in Gears and Rolling Element Bearings

Table 2

Comparison of relative vibration signatures.

	Component at SF of 16 Hz		Component at BPF of 88 Hz		Component at MF of 425 Hz
	WVD amplitude	Wavelet density	WVD amplitude	Wavelet density	WVD amplitude	Wavelet density
No damage	5.5531	0.02261	7.0783	0.02687	233.9	0.05176
Damaged gear	277.37	0.10129	429.28	0.11187	3822.8	0.19858
Damaged bearing	406.82	0.98625	2134.1	0.24816	1460.6	0.132022
Damaged gear and bearing	2263.9	0.1395	4532.9	0.32207	3131.2	0.17448