Rub-Impact Detection in Rotor Systems with Pedestal Looseness Using a Nonlinearity Evaluation

Figure 19

Vertical vibration amplitude signals and their frequency diagram on bearing with pedestal looseness coupled with rub-impact (looseness clearance = 0.002 m). (a) Vibration amplitude signals and its frequency diagram. (b) Denosing vibration amplitude signals and its frequency diagram.

(a)

(b)