Comparison of static performance characteristics of different configurations of slot-entry hybrid journal bearing operating with non-Newtonian lubricants

Purpose – The slot-entry hybrid journal bearings have been successfully used in various engineering applications because of their good performance over wide range of speed and load, besides their relative simplicity in manufacturing. Most of the research work pertaining to non-recessed journal bearing assumes standard symmetric and asymmetric configurations. However, many more configurations are possible by changing the position of slot which may improve the performance of the slot-entry journal bearing. In the present work study of static performance characteristics of slot-entry journal bearing of different configuration has been carried out. The paper aims to discuss these issues. Design/methodology/approach – FEM has been used to solve the Reynolds equation governing the flow of lubricant in the bearing clearance space along with the restrictor flow equation. The non-Newtonian lubricant has been assumed to follow the cubic shear stress law. The performance characteristics of slot-entry hybrid journal ...

[1]  T. Nagaraju,et al.  Influence of Surface Roughness on Non-Newtonian Thermohydrostatic Performance of a Hole-Entry Hybrid Journal Bearing , 2006 .

[2]  C W Dee,et al.  THE CURRENT STATE OF THE ART OF FLUID BEARINGS WITH DISCRETE SLOT INLETS , 1971 .

[3]  Kai Cheng,et al.  A selection strategy for the design of externally pressurized journal bearings , 1995 .

[4]  S. C. Jain,et al.  Influence of elastic effects on the performance of slot-entry journal bearings , 1999 .

[5]  T. Nagaraju,et al.  Thermohydrostatic analysis of slot-entry hybrid journal bearing , 2002 .

[6]  H. B. Sharda,et al.  Thermohydrostatic analysis of capillary compensated symmetric hole‐entry hybrid journal bearing operating with non‐Newtonian lubricant , 2009 .

[7]  Vijay Kumar,et al.  On the design and development of hybrid journal bearings: a review , 2006 .

[8]  Satish C. Sharma,et al.  A study of slot-entry hydrostatic/hybrid journal bearing using the finite element method , 1999 .

[9]  K. J. Stout,et al.  Investigation of recessed hydrostatic and slot-entry journal bearings for hybrid hydrodynamic and hydrostatic operation☆ , 1977 .

[10]  H. B. Sharda,et al.  Performance of slot-entry hybrid journal bearings considering combined influences of thermal effects and non-Newtonian behavior of lubricant , 2010 .

[11]  D. Dowson.  A generalized Reynolds equation for fluid-film lubrication , 1962 .

[12]  S. C. Jain,et al.  A Study of Non-Recessed Hybrid Flexible Journal Bearing With Different Restrictors , 2001 .

[13]  K. J. Stout,et al.  Slot-Entry Bearings for Hybrid Hydrodynamic and Hydrostatic Operation: , 1976 .

[14]  Sonika Jain,et al.  Effect of non-Newtonian behaviour of lubricant and bearing flexibility on the performance of slot-entry journal bearing , 2000 .

[15]  Vijay Kumar,et al.  Non‐Newtonian and thermal effects in constant flow valve compensated symmetric hole‐entry hybrid journal bearing , 2007 .

[16]  W. B. Rowe,et al.  Hybrid journal bearings with particular reference to hole-entry configurations , 1982 .