Figure 4
From: Negative potential energy content analysis in cracked rotors whirl response
Effect of the open crack model depth \(\mu\) at varying shaft rotational speeds on the potential energy content in steady-state response at unbalance force angles \(\beta = 0{\text{ rad}}\) in (a), \(\beta = \pi /6{\text{ rad}}\) in (b), \(\beta = \pi /3{\text{ rad}}\) in (c) and \(\beta = \pi /2{\text{ rad}}\) in (d).
