DESIGN OF ANNULAR RECESS HYDROSTATIC THRUST BEARING UNDER DYNAMIC LOADING

Design charts are presented of a dynamically loaded thrust bearing with an annular recess. The effect of non-parallelism between the bearing and the runner surfaces is also considered, since this is a common problem in hydrostatic thrust bearings. Based on pre-assigned dynamic excitations the pressure equation is solved numerically by finite difference methods to render the bearing performance characteristics namely: load capacity; bearing stiffness; damping coefficient; and lubricant flow rate. Results concluded that the bearing performance characteristics are dependent on the bearing radii ratios, the squeeze number, the bearing number and the tilt parameter.