Multiresolution Wavelet Analysis of the Dynamics of a Cracked Rotor

Table 2

Comparison of rms values (𝜇m) of healthy and cracked rotors with no excitation.

Level frequency band	D 6 78.125–156.25 Hz	D 7 39.06–78.125 Hz	D 8 19.53–39.06 Hz
Healthy rotor	1.43	29.44	38.55
Cracked rotor	2.16	38.04	50.71
Percent change	51.0	29.2	30.5