NUMERICAL INVESTIGATION OF THE PERFORMANCE OF FLUID FILM JOURNAL BEARINGS

Abstract

This dissertation numerically investigates the performances of both plain journal bearings and herringbone groove journal bearings, with special attention to the latter. The attitude angle, load capacity, stiffness coefficients and damping coefficients are computed. The effects of groove number, groove angle, groove depth, ridge/groove width ratio as well as bearing length on the performances of the bearing are presented in details. Some results are compared with related literature and agreements are reached. Some guidelines for bearing design are then drawn.