Investigation of Cavitation in a Finite Journal Bearing Considering the Journal Speed and Couple Stress Fluids Effects
Journal Title: Tribology in Industry - Year 2018, Vol 40, Issue 4
Abstract
A theoretical analysis of the combined effect of journal speed and couple stress fluids (CSF) on the performance characteristics of a cavitated finite journal bearing (FJB) has been presented in this paper. Depending on the Elrod cavitation algorithm (ECA), the solution to the modified Reynolds equation is achieved. The bearing parameters are affected by both the journal speed and CSF. From the results obtained, it is detected that the non- Newtonian lubricants (CSF) produce enhanced in the fill-film pressure, load-capacity, as well as reduces the Sommerfield number and a small drop in the values of the bearing side leakage flow. The results obtained in this work specify that the characteristics of the bearing are affected significantly by this effect. The achieved results have been compared with that published by other works for the bearing operating with pure lubricant and showed to be in a good agreement.
Authors and Affiliations
M. A. Mahdi, A. W. Hussain, H. H. Hadwan
Keywords
Related Articles
- EP ID EP460461
- DOI 10.24874/ti.2018.40.04.13
- Views 79
- Downloads 0
Friction Behavior Produced in The Course of a Contact Enabled Between Composite Materials and Eco-Friendly Soles Prototypes Made of Elastomeric Material with Regard to Ice-Covered Surface
The subject matter of the present research constitutes a study of the technique of friction between samples and prototypes of soles made of composite materials comprising natural rubber characterized with ingredients ori...
Tribology Development in Russia and Belarus
The paper presents a brief overview of the achievements of the Russian and Soviet tribology schools. The contribution of the Soviet tribology leader Prof. Kragelskii into the science of friction, wear, and lubrication is...
Development of a Constitutive Friction Law based on the Frictional Interaction of Rough Surfaces
Friction has a considerable impact in metal forming. This is in particular true for sheet-bulk metal-forming (SBMF) in which local highly varying contact loads occur. A constitutive friction law suited to the needs of SB...
Experimental Evaluation of the Surface Alteration of Gasket Samples under Operative Conditions
This paper investigates the surface alteration of gasket samples commercialized by two alternative producers. These gaskets, in polymeric materials, are installed in process plants used for cleaning tires molds by a pion...
Comparative Performance of a Non-recessed Hole-entry Hybrid/Hydrostatic Conical Journal Bearing Compensated with Capillary and Orifice Restrictors
This research paper deals with the theoretical study of comparison of capillary and orifice compensated non-recess hole-entry hydrostatic/ hybrid conical journal bearing. Modified Reynolds equation governing the flow of...