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

Table 3

Comparison of the envelope order spectrum.

Harmonic; order	Amplitudes of the harmonics		Changed ratio
	Resampled signal	Denoising signal
BRO	0.035	0.036	2.9%
2BRO	0.019	0.027	42.1%
FCO	0.116	0.247	113%
2FCO	0.119	0.251	111%
3FCO	0.100	0.186	86%
4FCO	0.0787	0.125	58.8%