Comparative Dynamic Performance of Configurations of Hole-entry Journal Bearings under Turbulent Regime

The present paper investigates the comparative dynamic performance of hole-entry symmetric and asymmetric hybrid journal bearing configurations under turbulent lubrication. Constantinescu turbulent model is used to account the influence of turbulent flow on bearing performance. Reynolds equation is altered considering turbulent theory of lubrication by Constantinescu. FEM using Galerkin's technique is utilized to determine the solution of altered Reynolds equation. Dynamic performance for various values of Reynolds numbers has been presented for the configurations of hole-entry bearings. It is observed that the effects of turbulent lubrication on dynamic characteristics of bearings are significant.