Under certain external unforeseen disturbances the rotor-bearings system exhibits self excited oscillating behaviours. The instability occurs when the speed exceeds a certain onset, appearing as self excited orbital motions induced by the fluid film dynamic forces. In this paper an approximate closed form solution for the Reynolds’ equation for the particular case of the partial arc journal bearings in unsteady operating conditions is proposed. The analysis considers the case of incompressible coupled stress fluid under the classical hypothesis.

JOURNAL BEARINGS WITH COUPLE STRESS FLUIDS: AN APPROXIMATE CLOSED-FORM SOLUTION

RUGGIERO, Alessandro;SENATORE, ADOLFO;
2012-01-01

Abstract

Under certain external unforeseen disturbances the rotor-bearings system exhibits self excited oscillating behaviours. The instability occurs when the speed exceeds a certain onset, appearing as self excited orbital motions induced by the fluid film dynamic forces. In this paper an approximate closed form solution for the Reynolds’ equation for the particular case of the partial arc journal bearings in unsteady operating conditions is proposed. The analysis considers the case of incompressible coupled stress fluid under the classical hypothesis.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/3136594
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact