ON THE STATIC ANALYSIS OF ANNULAR RINGH HYDROSTATIC THRUST BEARINGS LUBRICATED WITH COUPLE STRESS FLUIDS

Uday Pratap Singh, Chandra Prakash Singh

Abstract: In the present theoretical analysis, the static properties of the annular ring hydrostatic thrust bearings have been investigated. The lubricant in the system has been taken as non-Newtonian couple stress fluids. The effects of centrifugal inertia and couple stresses on the film pressure, load capacity and lubricant flow rate have been studied and a good agreement of the present results with the earlier established results has been observed. Analytic solution for pressure distribution has been obtained in the analysis taking into account, the influence of centrifugal inertia in the recess region. The effect of couple stress on pressure was found to be dependent on central recess radius but the decreasing load capacity and flow rate with the increase of couple stress parameter was observed in the analysis. Load capacity was also observed to be higher with the recess radius closer to the axis of the bearing.

Keywords: Hydrostatic bearings; annular rings; couple stress fluids; static performance

DOI: https://doi.org/10.15623/ijret.2016.0518009