Figure 9
From: Negative potential energy content analysis in cracked rotors whirl response
Experimental whirl amplitudes in steady-state response versus the shaft rotational speeds at \(\mu = 0.2\) and \(\beta = 4\pi /9{\text{ rad}}\) in (a) and \(\beta = 8\pi /9{\text{ rad}}\) in (b) of the horizontal cracked rotor system.
