OPTIMUM DESIGN OF HYDROSTATIC JOURNAL BEARINGS FOR MINIMUM POWER LOSSES

Document Type : Original Article

Authors

1 Associate Profs.,Dept.of Mech. Design, Cairo University, Cairo, Egypt.

2 Lt.Colonel, Egyptian Army.

Abstract

This paper presents the results of an optimization study aim-ing at minimizing the total power losses in hydrostatic journal bearings. Results illustrating the optimum values of area ratio,pressure ratio, axial land width,and circumferential land width are presented. It is found that some of the design variables tend to settle at extreme values of either upper or lower constraints. It is also found that within the limitations imposed by the governing equations the optimum pressure ratio is 0.5.