Research on Fault Feature Extraction Method Based on NOFRFs and Its Application in Rotor Faults

<div>Experimental device: 1, eddy current sensor; 2, shaft; 3, rub screw; 4, locknut; 5, motor; 6, dc power; 7, coupling; 8, bearing seat; 9, magnetic base; 10, disc.</div>

Shock and Vibration

fig7

Figure 7

Figure 7: Research on Fault Feature Extraction Method Based on NOFRFs and Its Application in Rotor Faults 