The Influence of Journal Parameters on the Behavior of Rotational Stability of the Tilting Pad Journal Bearings

The influence of journal parameters, such as speed of the shaft, clearance and numbers of the pads, on the behavior of rotational stability is investigated in order to improve the design techniques and expand the range of usage of the tilting pad journal bearing. The investigation is performed by programs, which are based on the finite differential method to numerically simulate the Reynolds lubrication equation and the rotor dynamic equation. The results of the simulation show that the above three parameters have strong effect on the behavior of tilting pad journal bearings. So it is concluded that the journal parameters can be optimally selected for the stable operation of the tilting pad journal bearings.