Effect of Groove Angle on the Performance of a Four-Lobe Pressure Dam Bearing with Rigid and Flexible Rotors

Authors:

G. Bhushan (National Institute of Technology, Kurukshetra)

S. S. Rattan (National Institute of Technology, Kurukshetra)

Abstract:

It is observed that among multilobe pressure dam bearings, a four-lobe bearing pressure dam possesses good stability characteristics. A four-lobe pressure dam bearing is produced by cutting two pressure dams on the upper two lobes and two relief-tracks on the lower two lobes of an ordinary four-lobe bearing. The effect of groove angle on the performance of four-lobe pressure dam hearing has been analyzed in this work. The static and dynamic characteristics have been studied at various groove angles of the hearing. The results indicate that the stability of the bearing decreases with an increase in groove angle.