... lubrication fluid film lubrication rheology rolling element bearings Elastohydrodynamic lubrication (EHL) theory demonstrates how relative motion can entrain a viscous liquid into a geometric wedge, giving rise to pressure. If the pressure is sufficient, the relatively moving solids are separated...

... 2023 grease lubrication rheology seals viscosity Science and Engineering Research Board 10.13039/501100001843 EMR/2017/03440 Magnetorheological grease (MRG) comes under the category of smart materials which is capable of reversibly altering its rheology under...

...Robert J. Sadinski; Carl H. Hager, Jr.; William M. Hannon The relative volume and falling body viscosity of a common high-pressure rheology reference lubricant, di-(2-ethylhexyl) sebacate (DEHS), are presented. Relative volume measurements up to 300 MPa are completed with a piezo-bellows relative...

.... , 1950 , “ On the Formulation of Rheological Equations of State ,” Proc. R. Soc. London A , 200 ( 1063 ), pp. 523 – 541 . 10.1098/rspa.1950.0035 [6] Macosko , C. W. , 1994 , Rheology: Principles, Measurements, and Applications , Wiley-VCH , New York . [7] Spagnolie , S. E...

... 24 08 2021 09 11 2021 clutches fluid friction hydrodynamic lubrication rheology The investigation on the application of magnetorheological (MR) fluid is started from 1940s [ 1 ]. The MR clutch is one of those devices that uses MR fluid. It is due to its unique qualities...

..., for rotating herringbone groove, stability of the bearing decreases with the decrease in the groove number and with the increasing eccentricity. nonrecess conical bearing spiral grooves ferrofluid FEA bearing design and technology fluid film lubrication journal bearings lubricants rheology...

... ,” Sci. Rep. , 8 ( 1 ), pp. 1 – 9 . 10.1038/s41598-018-30861-4 [22] Thakur , M. K. , and Sarkar , C. , 2020 , “ Influence of Graphite Flakes on the Strength of Magnetorheological Fluids at High Temperature and Its Rheology ,” IEEE Trans. Magn. , 56 ( 5 ), pp. 1 – 10 . 10.1109...

... elastohydrodynamic lubrication rheology The hardened steel ball rolling against the flat surface of a transparent disc has been a preferred configuration for experimental investigations of elastohydrodynamic lubrication (EHD or EHL). In early versions of the EHD rig, both sapphire [ 1 ] and glass were used...

... 2020 clutches fluid friction rheology surfaces tribological systems viscosity A magnetorheological (MR) clutch is a device where MR fluid (MRF) is sheared between a driving and a driven disc. MRFs have some advantages over other rheological fluids such as higher yield stress...

... on confined lubricant layer, the Deborah number was adopted to reveal the role of lubricant rheology on the dramatic reduction of COF in the valley zone of the Stribeck curve [ 4 ]. However, a fundamental understanding of the role of the lubricant on the transition period of the Stribeck curve (i.e., the COF...

... for this shear thickening [ 68 ]. It is worth to note that the DST can also be explained by the soft glassy rheology model [ 69 ] and the mode coupling theory [ 70 ]. The second yielding can also be due to the occurrence of the “cage breaking” mechanism. As reported by Ref. [ 68 ], this mechanism explains...

... for publication in the J OURNAL OF T RIBOLOGY . Manuscript received May 25, 2018; final manuscript received August 22, 2018; published online October 24, 2018. Assoc. Editor: Wenzhong Wang. 25 05 2018 22 08 2018 Nanocomposite grease nano-additives rheology film formation EHD lubrication...

... of ASME for publication in the J OURNAL OF T RIBOLOGY . Manuscript received November 15, 2017; final manuscript received April 18, 2018; published online May 28, 2018. Assoc. Editor: Dae-Eun Kim. 15 11 2017 18 04 2018 Friction Grease lubrication Lubricant additives Rheology...

... online April 26, 2018. Assoc. Editor: Liming Chang. 16 01 2018 14 02 2018 Elastohydrodynamic lubrication Rheology Thermoelastohydrodynamic lubrication Spinning motions are common in practice such as traction drives and angular contact ball bearings. The rolling-sliding...

... of ASME for publication in the J OURNAL OF T RIBOLOGY . Manuscript received June 23, 2017; final manuscript received October 16, 2017; published online January 16, 2018. Assoc. Editor: Mihai Arghir. 23 06 2017 16 10 2017 Lubricants Rheology Seals Viscosity The pioneering...

... 2017 Dry friction Friction Rheology Sliding Stick-slip A magnetorheological elastomer (MRE) is a rubber like material composed of microsized magnetic particles. The property of an MRE varies under different magnetic field strengths. Owing to their inherent controllable...

... Lubricants Rheology Surface treatments Viscosity Research in the area of bearing lubrication has improved the static and dynamic performance of journal bearings over the last several decades. Different designs/architectures of hydrodynamic journal bearings, such as multilobe bore and tilting pad...

... 2017 Elastohydrodynamic lubrication Lubricants Rheology Viscosity An alternative to the classical approach to understanding film-forming in elastohydrodynamic lubrication (EHL) has appeared in the last ten years or so. Previously, in EHL analyses, the properties of the liquid were...

.... 20 08 2016 28 12 2016 Fluid friction Friction Grease lubrication Lubricant additives Rheology Friction, frictional heat, noise, and wear are natural consequences of the tribological contact and can be minimized with the incorporation of suitable low shear strength phase [ 1...

... for publication in the J OURNAL OF T RIBOLOGY . Manuscript received August 19, 2016; final manuscript received January 12, 2017; published online May 26, 2017. Editor: Michael Khonsari. 19 08 2016 12 01 2017 Friction Hydrodynamic lubrication Journal bearings Mixed lubrication Rheology...