Figure 9From: Crack Fault Diagnosis and Location Method for a Dual-Disk Hollow Shaft Rotor System Based on the Radial Basis Function Network and Pattern Recognition Neural NetworkComparison of time history, whirling orbits, and frequency spectrum for λ = 0.3, cp = 10, and \(\varOmega\) = 410 rad/s \(\approx 1/2\omega_{1}\) at node 10: (a) Time history, (b) Whirl orbits, (c) Frequency spectrumBack to article page