Modelling of rotor speed transient with rotor to stator contact

Sébastien Roques (1) , Carlo Stoisser (2) , Patrice Cartraud (1) , Mathias Legrand (1) , Bernard Peseux (1) , Christophe Pierre (3)

1 GeM - Institut de Recherche en Génie Civil et Mécanique
2 EDF - EDF
3 Department of Mechanical Engineering

A rotor-stator model of a turbogenerator has been developed to solve rotational velocity transients: to this end, the angular position of a beam cross section is considered as a variable, allowing for the angular deceleration due to rotor-to-stator friction to be calculated in a more realistic representation of the interaction. The equations of motion derived from an energetic formulation are highly nonlinear and require a specific time integration procedure. Calculations were run considering different types of diaphragms

Mots clés: Speed transient; heavy rotor-to-stator contact; rubbing; Lagrange constraints

Domaines: Mécanique [physics.med-ph]; Matériaux

Sébastien Roques, Carlo Stoisser, Patrice Cartraud, Mathias Legrand, Bernard Peseux, et al.. Modelling of rotor speed transient with rotor to stator contact. 7th IFToMM International Conference on Rotor Dynamics, Sep 2006, Vienne, Austria. ⟨hal-01008503⟩