M. Antonini , D. Fausti , M. Mor ,
 PoliBrixia s.r.l., Brescia, Italy
In this paper, the “Morton Effect” is analyzed. This phenomenon is a particular kind of rotor instability due to non-uniform journal bearing heating. In this paper, an overview of the previous works has been done. After this preliminary study, a specific approach suggested by literature has been chosen and analyzed. A thermal model, a rotor dynamic model and a stability criterion were implemented with COMSOL®.