The Influence of Elastic Base on Stability of Rotor-Oil Film Bearing Systems

Abstract

The oil film bearings (or journal bearings) are usually used for large rotating machinery systems. The oil film bearings contribute to dynamic characteristics of the systems by influencing the natural frequencies from hydrodynamic properties of oil in the bearing cage. The stability of the systems is changeable by elastic base. This is subject of the paper, and the vibration measurement of the foundation on an elastic base could be used for assessement of the technical conditions of the oil-film bearing and rotor-bearing systems.