Feature Extraction of Faulty Rolling Element Bearing under Variable Rotational Speed and Gear Interferences Conditions

Table 5

Comparison of the envelope order spectrum.

Harmonic; order	Amplitudes of the harmonics		Changed ratio
	Resampled signal	Denoising signal
BRO		0.017
2BRO		0.034
FCO	0.065	0.092	41.5%
2FCO	0.054	0.072	33.3%
3FCO	0.045	0.064	42.2%
4FCO	0.035	0.049	40%