The use of smart lubricants in fluid film bearing applications has gained enormous popularity. This study presents a numerical model to predict the behavior of a magneto-rheological (MR) lubricated hybrid sectorial thrust pad bearing system. The Finite Element Method (FEM) has been used to solve the modified Reynolds equation, which describes the sectorial thrust pad hybrid bearing. A constitutive relation based on the Bingham model is used to simulate the flow behavior of the MR lubricant. The computational results reveal that increasing the number of sectors in the magneto-rheological (MR) lubricated sectorial thrust pad bearing enhances the pocket pressure, load-carrying capacity, and stiffness coefficient.
OsmanTDoridMSafarZ, et al.Experimental assessment of hydrostatic thrust bearing performance. Tribol Int1996; 29: 233–239.
9.
ShenFChenC-LLiuZ-M. Effect of pocket geometry on the performance of a circular thrust pad hydrostatic bearing in machine tools. Tribol Trans2014; 57: 700–714.
10.
GuoMTianZHuangY, et al.CFD based investigation on the influence of multi-recess shape for the design of hydrostatic thrust bearings. Authorea Preprints2023.
11.
YuXDWangZQMengXL, et al.Comparative study on pressure field of hydrostatic thrust bearing with different recess shapes. Key Eng Mater2014; 621: 431–436.
12.
GhoshMMajumdarB. Dynamic stiffness and damping characteristics of compensated hydrostatic thrust bearings. 1982.
13.
BouyerJWodtkeMFillonM. Experimental research on a hydrodynamic thrust bearing with hydrostatic lift pockets: influence of lubrication modes on bearing performance. Tribol Int2022; 165: 107253.
14.
ShaoJ-pLiuG-dYuX. Simulation and experiment on pressure field characteristics of hydrostatic hydrodynamic hybrid thrust bearings. Ind Lubr Tribol2019; 71: 102–108.
15.
YuXZuoXLiuC, et al.Oil film shape prediction of hydrostatic thrust bearing under the condition of high speed and heavy load. Ind Lubr Tribol2018; 70: 1243–1250.
16.
HashimotoH. The effects of fluid inertia forces on the static characteristics of sector-shaped, high-speed thrust bearings in turbulent flow regime. 1989.
17.
MoriATanakaKMoriH. Effects of fluid inertia forces on the performance of a plane inclined sector pad for an annular thrust bearing under laminar condition. 1985.
18.
MiyanagaNKishidaTTomiokaJ. Experimental investigation of load carrying capacity and frictional torque of dimpled parallel thrust bearings. J Adv Mech Des Syst Manuf2020; 14: JAMDSM0041‐JAMDSM.
19.
RabinowJ. The magnetic fluid clutch. Electr Eng1948; 67: 1167.
20.
ThakurMKSarkarC. Investigation of different groove profile effects on torque transmission in shear mode magnetorheological clutch: numerical simulation and experimental study. J Tribol2020; 143: 091801.
21.
ZapomělJFerfeckiPForteP. A computational investigation of the transient response of an unbalanced rigid rotor flexibly supported and damped by short magnetorheological squeeze film dampers. Smart Mater Struct2012; 21: 105011.
22.
LijeshKKumarDHiraniH. Synthesis and field dependent shear stress evaluation of stable MR fluid for brake application. Ind Lubr Tribol2017; 69: 655–665.
23.
BomposDANikolakopoulosPG. Journal bearing stiffness and damping coefficients using nanomagnetorheological fluids and stability analysis. J Tribol2014; 136: 041704.
24.
GhoshMKMajumdarBC. Dynamic stiffness and damping characteristics of compensated hydrostatic thrust bearings. J Lubr Technol1982; 104: 491–496.
25.
SharmaSCTomarAK. Study on MR fluid hybrid hole-entry spherical journal bearing with micro-grooves. Int J Mech Sci2021; 202-203: 106504.
26.
KooJ-HGoncalvesFDAhmadianM. A comprehensive analysis of the response time of MR dampers. Smart Mater Struct2006; 15: 351.
27.
GoncalvesFDKooJ-HAhmadianM. Experimental approach for finding the response time of MR dampers for vehicle applications. In: ASME 2003 international design engineering technical conferences and computers and information in engineering conference, 2003, pp.425–430.
28.
WangXGordaninejadF. Study of magnetorheological fluids at high shear rates. Rheol Acta2006; 45: 899–908.
29.
CarlsonJD. Critical factors for MR fluids in vehicle systems. Int J Veh Des2003; 33: 207–217.
30.
LampaertSVan OstayenR. Experimental results on a hydrostatic bearing lubricated with a magnetorheological fluid. Curr Appl Phys2019; 19: 1441–1448.
31.
UrretaHAguirreGKuzhirP, et al.Actively lubricated hybrid journal bearings based on magnetic fluids for high-precision spindles of machine tools. J Intell Mater Syst Struct2019; 30: 2257–2271.
32.
BomposDANikolakopoulosPG. Experimental and analytical investigations of dynamic characteristics of magnetorheological and nanomagnetorheological fluid film journal bearing. J Vib Acoust2016; 138: 031012.
UrretaHLeichtZSanchezA, et al.Hydrodynamic bearing lubricated with magnetic fluids. J Intell Mater Syst Struct2010; 21: 1491–1499.
35.
ElwellRGustafsonRReid JrJ. Performance of centrally pivoted sector thrust-bearing pads—sea trials aboard USS Barry (DD 933). 1964.
36.
FoufliasDGCharitopoulosAGPapadopoulosCI, et al.Performance comparison between textured, pocket, and tapered-land sector-pad thrust bearings using computational fluid dynamics thermohydrodynamic analysis. Proc Inst Mech Eng Part J, J Eng Tribol2015; 229: 376–397.
37.
KosasihP. A transition-turbulent lubrication theory and its application to sector-shaped thrust bearings. Australia: University of Wollongong, 1993.
38.
ZhangHLiuYHafeziM, et al.A distribution design for circular concave textures on sectorial thrust bearing pads. Tribol Int2020; 149: 105733.
39.
SchwarzVASilvaPFVicenteWM, et al.Effects of the pivot position and lubricant flow rate on the behavior of sector shaped tilting pads hydrodynamic thrust bearings. In: International congress of mechanical engineering (COBEM), 2003, pp.1–9.
40.
PapadopoulosCINikolakopoulosPGKaiktsisL. Characterization of stiffness and damping in textured sector pad micro thrust bearings using computational fluid dynamics. 2012.
41.
HesselbachJAbel-KeilhackC. Active hydrostatic bearing with magnetorheological fluid. J Appl Phys2003; 93: 8441–8443.
42.
LaukiavichCBraunMJChandyAJ. A comparison between the performance of ferro-and magnetorheological fluids in a hydrodynamic bearing. Proc Inst Mech Eng Part J, J Eng Tribol2014; 228: 649–666.
43.
SharmaSCYadavSK. Performance analysis of a fully textured hybrid circular thrust pad bearing system operating with non-Newtonian lubricant. Tribol Int2014; 77: 50–64.
44.
SinhasanRSahP. Static and dynamic performance characteristics of an orifice compensated hydrostatic journal bearing with non-Newtonian lubricants. Tribol Int1996; 29: 515–526.
45.
SharmaSCYadavSK. Performance of hydrostatic circular thrust pad bearing operating with Rabinowitsch fluid model. Proc Inst Mech Eng Part J, J Eng Tribol2013; 227: 1272–1284.
46.
BomposDANikolakopoulosPG. CFD Simulation of magnetorheological fluid journal bearings. Simul Model Pract Theory2011; 19: 1035–1060.
47.
JollyMRBenderJWCarlsonJD. Properties and applications of commercial magnetorheological fluids. J Intell Mater Syst Struct1999; 10: 5–13.
48.
Varela-JiménezMLunaJVCortés-RamírezJ, et al.Constitutive model for shear yield stress of magnetorheological fluid based on the concept of state transition. Smart Mater Struct2015; 24: 045039.
49.
CarlsonJD. MR Fluids and devices in the real world. Int J Mod Phys B2005; 19: 1463–1470.
50.
WiśniewskiA. The possibility of use of the magneto-rheological fluids in armours. Problemy Techniki Uzbrojenia2011; 40: 169–176.
51.
CostaEBrancoPC. Continuum electromechanics of a magnetorheological damper including the friction force effects between the MR fluid and device walls: analytical modelling and experimental validation. Sens Actuators, A2009; 155: 82–88.
52.
KumarVSharmaSC. Influence of dimple geometry and micro-roughness orientation on performance of textured hybrid thrust pad bearing. Meccanica2018; 53: 3579–3606.
53.
SinhasanRJainSSharmaS. Elastohydrostatic lubrication of capillary compensated circular pad thrust bearings. Wear1983; 91: 131–147.
54.
KhonsariMMBooserER. Applied tribology: bearing design and lubrication. New York: John Wiley & Sons, 2017.
55.
SharmaSCJainSBharukaD. Influence of recess shape on the performance of a capillary compensated circular thrust pad hydrostatic bearing. Tribol Int2002; 35: 347–356.
56.
KumarVSharmaSC. Magneto-hydrostatic lubrication of thrust bearings considering different configurations of recess. Ind Lubr Tribol2019; 71: 915–923.
57.
TomarAKSharmaSC. An investigation into surface texture effect on hole-entry hybrid spherical journal bearing performance. Tribol Int2020; 151: 106417.
58.
KumarNSharmaSC. Influence of magnetorheological lubricant behavior on the performance of annular recessed orifice compensated nontextured/textured thrust pad bearing. Proc Inst Mech Eng Part J, J Eng Tribol2022; 236: 1133–1154.
59.
SharmaSCKumarN. Influence of 3D surface irregularities on the performance of hydrostatic rectangular tilted thrust pad bearing configurations. Proc Inst Mech Eng Part J, J Eng Tribol2024; 238: 1337–1353.
