Non-linear dynamic of rotor-stator system with non-linear bearing clearance

Jean-Jacques Sinou (1) , Fabrice Thouverez (1)

1 LTDS - Laboratoire de Tribologie et Dynamique des Systèmes

The study deals with a rotor-stator contact inducing vibration in rotating machinery. A numerical rotor-stator system, including a non-linear bearing with Hertz contact and clearance is considered. To determine the non-linear responses of this system, non-linear dynamic equations can be integrated numerically. However, this procedure is both time consuming and costly to perform. The aim of this Note is to apply the Alternate Frequency/Time Method and the 'path following continuation' in order to obtain the non-linear responses to this problem. Then the orbits of rotor and stator responses at various speeds are investigated.

Domaines: Vibrations [physics.class-ph]; Vibrations [physics.class-ph]; Systèmes dynamiques [math.DS]; Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]

Jean-Jacques Sinou, Fabrice Thouverez. Non-linear dynamic of rotor-stator system with non-linear bearing clearance. Comptes rendus de l’Académie des sciences. Série IIb, Mécanique, 2004, 332 (9), pp.743-750. ⟨10.1016/j.crme.2004.04.009⟩. ⟨hal-00207665⟩