Book ChapterDOI
Tribology in Machine Components
Satish C. Sharma
- pp 821-879
Reads0
Chats0
TLDR
Some of the results pertaining to the current issues of research, which needs to be considered for an accurate and realistic design of hydrostatic/hybrid journal bearing system, such as the number of recesses, type of restrictor, shape of recess, influence of turbulence and flexibility, etc are discussed.Abstract:
Proper tribological practices are extremely important from the view point of reliable and maintenance free operation of machine components. Friction, wear, and lubrication are three main domains of tribology. Proper interfacing among these domains is essential to have a better performance of machine components. Bearings are most critical machine elements which imparts constrained relative motion between two machine components. Bearings either have sliding contact or rolling contact. In the present chapter different types of bearings have been discussed. The main focus of this chapter is on hydrostatic/hybrid fluid-film journal bearings. The components of the hydrostatic/hybrid bearing system that have significant impact on bearing performance have been described. The analysis of fluid-film journal bearings and their performance characteristics parameters have been discussed. The chapter also discusses some current research trends in the design of hydrostatic/hybrid journal bearings. In concluding section the chapter discusses some of the results pertaining to the current issues of research, which needs to be considered for an accurate and realistic design of hydrostatic/hybrid journal bearing system, such as the number of recesses, type of restrictor, shape of recess, influence of turbulence and flexibility, etc.read more
Citations
More filters
Journal ArticleDOI
Microstructures, hardening and tribological behaviors of tin matrix composites reinforced with SiC and Zn particles
TL;DR: In this article, a powder metallurgy route was used to strengthen pure tin and improve its dry sliding resistance, and fabricated composites of Sn/SiC and Sn/Zn composites were compared to those of Sn-7.5Sb-3.5Cu Babbitt alloy.
References
More filters
Journal ArticleDOI
Influence of surface roughness effects on the performance of non-recessed hybrid journal bearings
TL;DR: In this paper, the effect of surface roughness on the performance of a capillary compensated hole-entry hybrid journal bearing system has been theoretically studied, and the impact of surface irregularity on the bearing performance has been analyzed for transverse, isotropic and longitudinal surface patterns.
Journal ArticleDOI
Influence of micropolar lubricants on the performance of slot-entry hybrid journal bearing
Satish C. Sharma,Nathi Ram +1 more
TL;DR: In this paper, a theoretical study concerning the slot-entry hybrid journal bearing lubricated with micropolar lubricants is presented, where the modified Reynolds equation for micropolastic lubricant is solved using finite element method along with equation of lubricant flow through slot entry restrictors as a constraint together with appropriate boundary conditions.
Journal ArticleDOI
Comparative study of the performance of six-pocket and four-pocket hydrostatic/hybrid flexible journal bearings
TL;DR: In this article, the performance of a six-pocket capillary compensated hydrostatic/hybrid flexible journal bearing was compared to that of a simi ar four-pocket journal bearing, based on theoretically computed results.
Journal ArticleDOI
Hydrostatic journal bearing (exact procedure)
J.P. O'Donoghue,W.B. Rowe +1 more
TL;DR: In this article, a procedure based on exact solution of the Laplace equation under non-uniform film conditions applied to multi-recess externally pressurized journal bearings with external compensation is described.
Journal ArticleDOI
Stability analysis of orthogonally displaced bearings
Ajeet Singh,Bipin Kumar Gupta +1 more
TL;DR: In this article, a theoretical prediction of stability for a hybrid two-lobe bearing obtained by displacing the lobe centres of an elliptical bearing is presented. But the analysis is limited to the case of a single shaft.