Influence of micropolar lubrication on the performance of 4-pocket capillary compensated conical hybrid journal bearing

Abstract

The present paper deals with a theoretical analysis of 4-pocket capillary compensated conical hybrid journal bearing system operating with micropolar lubricant. The modified Reynolds equation for a conical journal bearing system operating with micropolar lubricant has been derived. In the present study, Eringen's micropolar theory has been used to model micropolar lubrication in cylindrical coordinate system. The study has been carried out for the different values of micropolar parameters, that is, characteristic length (l) and coupling number (N). The conical bearing configurations having semicone angle 10 °, 20 °, 30 °, and 40 ° have been studied. The study suggests that micropolar lubricant offers better performance vis- á-vis Newtonian lubricant for bearing configurations having values of semicone angle 10 °and 20 °. © 2012 Satish C. Sharma and Arvind K. Rajput.