This paper concerns with theoretical investigation to predict the influence of cylindrical textures on the static and dynamic performance characteristics of hydrodynamic journal bearing system and the performance is compared with smooth surface bearing. The Reynolds equation governing the fluid–film between the journal and the bearing surface is solved numerically with the assistance of finite element method and the performance characteristics are evaluated as a function of eccentricity ratio, dimple depth and its location. In this study, four journal bearing configurations viz: smooth (non-textured), full-textured, partially textured-I, and partially textured-II are considered for the evaluation of theoretical results. The simulated results indicate that the influence of surface textures is more significant when the textures were created in upstream zone of 126°–286° and dimple aspect ratio nearly 1.0.
EtsionI. State of the art in laser surface texturing. Trans ASME J Tribol2005; 127: 248–243.
2.
CostaHLHutchingsIM. Hydrodynamic lubrication of textured steel surfaces under reciprocating sliding conditions. Tribol Int2007; 40: 1227–1238.
3.
KovalchenkoAAjayiOErdemirA, et al.The effect of laser surface texturing on transitions in lubrication regimes during unidirectional sliding contact. Tribol Int2005; 38: 2197–2225.
4.
PettersonUJacobsonS. Influence of surface texture on boundary lubricated sliding contacts. Tribol Int2003; 36: 857–864.
5.
WangXKatoKAdachiK, et al.Load carrying capacity map for the surface texture design of SiC thrust bearing sliding in water. Tribol Int2003; 36: 189–197.
6.
Haefke H, Cerbig Y, Gabriel D, et al. Micro-texturing of functional surfaces for improving their tribological performance. In: Proceedings of international tribology conference, Nagasaki, 2000, pp.217–221.
7.
SiripuramRBStephenLS. Effect of deterministic asperity geometry on hydrodynamic lubrication. J Tribol2004; 126: 527–534.
8.
WakudaMYamauchiYKanzakiY, et al.Effect of surface texturing on surface reduction between ceramic and steel materials under lubricated sliding contacts. Wear2003; 254: 356–363.
9.
EtsionIBursteinL. A model for mechanical seals with regular micro-surface structure. Tribol Trans1996; 39: 677–683.
KligermanYEtsionIShinkarenkoA. Improving tribological performance of piston rings by partial surface texturing. J Tribol2005; 127: 632–638.
12.
RykGKligermanYEtsionI, et al.Experimental investigation of partial laser surface texturing for piston ring friction reduction. Tribol Trans2005; 48: 583–588.
13.
Golloch R, Merker G.P, Kessen U, et al. Benefits of laser-structured cylinder liners for internal combustion engines. In: 14th International colloquium tribology, Esslingen, Germany, 2004, pp.321–328.
FesangharyMKhonsariMM. On the optimum groove shape for the load carrying capacity enhancement in parallel flat surface bearings: theory and experiment. Tribol Int2013; 67: 254–262.
16.
Tala-IghilNFillonMMaspeyrotP, et al.Effects of surface texture on journal-bearing characteristics under steady-state operating conditions. Proc IMechE, Part J: J Engineering Tribology2007; 221: 623–633.
17.
Tala-IghilNFillonMMaspeyrotP. Effect of textured area on the performance of hydrodynamic journal bearing. Tribol Int2011; 44: 211–219.
18.
KangoSSinghDSharmaR.K. Numerical investigation on the influence of surface texture on the performance of hydrodynamic journal bearing. Meccanica2012; 47: 469–482.
SharmaSCJainSCSinhasanR, et al.Static and dynamic performance characteristics of orifice compensated hydrostatic flexible journal bearings with non-Newtonian lubricants. Tribol Trans2001; 44: 242–248.
21.
DowsonD. A generalized Reynolds equation for fluid-film lubrication. Int J Mech Sci1962; 4: 159–170.
22.
SharmaSCYadavSK. Performance analysis of full textured hybrid circular thrust pad bearing system operating with non-Newtonian lubricant. Tribol Int2014; 77: 50–64.
23.
YadavSKSharmaSC. Performance of hydrostatic tilted thrust pad bearings of various recess shapes operating with non-Newtonian lubricant. Finite Elem Anal Des2014; 87: 43–55.
24.
WadaSHayashiH. Hydrodynamic lubrication of journal bearings by pseudo-plastic lubricants, part 1, theoretical studies. Bull JSME1971; 14: 268–278.
25.
SharmaSCJainSSahP. Effect of non-Newtonian behaviour of lubricant and bearing flexibility on the performance of slot-entry journal bearing. Tribol Int2000; 33: 507–517.
26.
Awasthi RK. The influence of wear and running-in on fluid-film journal bearing system. Thesis, Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, India, 2006.
ChandrawatHNSinhasanR. A study of steady state and transient performance characteristics of flexible shell journal bearing. Tribol Int1988; 21: 137–148.
29.
JainSCSinhasanRSinghDV. A study of EHD lubrication in a journal bearing with piezo-viscous lubricant. ASLE Trans1984; 27: 168–176.
30.
ChandrawatHNSinhasanR. A study of steady state and transient performance characteristics of flexible shell journal bearing. Tribol Int1988; 21: 137–148.
31.
RaimondiAABoydJ. A solution for the finite journal bearings and its application to analysis and design, parts-I, II, III. ASLE Trans1958; 1: 159–209.
32.
ChandrawatHNSinhasanR. A comparison between two numerical techniques for hydrodynamic journal bearing problems. Wear1987; 119: 77–87.
33.
SharmaSCYadavSK. Performance analysis of a fully textured hybrid circular thrust pad bearing system operating with non-Newtonian lubricant. Tribol Int2014; 77: 50–64.
34.
KhatriCBSharmaSC. Influence of couple stress lubricant on the performance of textured two-lobe slot-entry hybrid journal bearing system. Proc IMechE, Part J: J Engineering Tribology2016; 0(0): 1–19.
