..., compressors, pumps, gear boxes and internal combustion engines. Rotating machines involve a journal supported by bearing. Aircraft engines and rolling mills, most medium to large rotating machineries were supported with hydrodynamic bearing. The hydrodynamic fluid film supported the load, which was generated...

.../approach Based upon the Stokes couple stress theory and ferro-hydrodynamic model of Shliomis, squeeze film characteristics between two parallel annular discs are obtained. Findings According to the results, it is found that the combined effects of couple stress and ferro-fluid lubricant increase...

... Bearings Lubrication Hydrodynamics Magnetic fluids Squeeze film behaviors arise when two lubricated surfaces approach each other with a normal velocity. Owing to the lubricant contained between the surfaces cannot be squeezed out instantaneously, a film cushion is generated and then can prevent...

... Zhang can be contacted at: yoyojjzh@163.com 23 06 2015 20 10 2015 01 12 2015 © Emerald Group Publishing Limited 2016 Emerald Group Publishing Limited Licensed re-use rights only Lubrication Hydrodynamics Thermodynamics Point contact Thermal EHL Normal vibration...

..., but these studies were confined to the hydrodynamic operative regime of the bearing. In the present work, seven different combinations of axial and radial groove arrangement were tried, which has not been reported in any other work. Lijesh K.P. can be contacted at: lijesh_mech@yahoo.co.in 01 11 2015...

... computing approach. The governing equations for the fluid and solid domain are combined in one matrix system: Water Bearings Lubrication Hydrodynamics Finite element analysis ρ_f =  fluid density t =  time ν =  fluid velocity...

... bearing performance characteristics such as thermo-hydrodynamic oil film pressure, temperature, load capacity, Sommerfeld number and power loss characteristics across the bearing. The effect of ellipticity ratio on the bearing performance characteristics has also been obtained for both the elliptical...

... viscosity, is proposed and applied to minimize the power loss in the interaction between liner and skirt. Design/methodology/approach Based on signal processing, the relationships between viscosity of lubricant and the friction loss, the hydrodynamic and contact friction force consequently are found...

...Fangwei Xie; Youfu Hou Purpose The purpose of this paper is to reveal the characteristics of hydrodynamic load capacity and torque transferred by oil film with variable viscosity, and the effect of groove number, width and depth on the hydrodynamic load capacity and torque transfer. Design...

...Gultekin Karadere Purpose The purpose of this paper is to study the effects of the total bearing deformation on the performance of hydrodynamic thrust bearings. Design/methodology/approach Pressure distribution in the thrust bearing has been obtained using the Reynolds equation for the case...

... and viscosity. Jaw‐Ren Lin can be contacted at: jrlin@nanya.edu.tw © Emerald Group Publishing Limited 2010 Temperature Hydrodynamics Lubrication Motion Films (states of matter) When a ball is allowed to move towards a flat plate covered with a thin layer of oil, highly localized...

...Erdem Koç; Oğuz Demiryürek Purpose The purpose of this paper is to investigate the hydrodynamic performance of a single‐screw extruder with special reference to metering region. Design/methodology/approach The hydrodynamic analysis of a single screw extruder is carried out by dimensional...

... parameters defined. The theoretical model is based on the main differential equation (Reynolds' equation) which is achieved by adopting the standard finite difference form. Findings Under the combination of the hydrostatic clamping forces and hydrodynamic restoring forces, an equilibrium position...

...Emel Ceyhun Sabir; Erdem Koç Purpose The main purpose of the study is to develop a theoretical model being capable of analysing the sealing and hydrodynamic‐hydrostatic lubrication mechanisms occuring between the mating surfaces of mechanical face seals. Design/methodology/approach...

...Y. Zhang Purpose To develop a more realistic model for molecularly thin film hydrodynamic lubrication by incorporating the fluid inhomogeneity and discontinuity effects across the fluid film thickness in this lubrication. Design/methodology/approach The total mass flow of the fluid through...

... on the performance of a mixed EHL. Local dry contact between the opposing asperities of the contact surfaces was incorporated in the recent theoretical modeling of mixed EHL by assuming the fluid as Newtonian in the whole hydrodynamic lubricated area of a mixed EHL contact and assuming the other areas of a mixed EHL...

... of pads only. Distortion of runner is ignored since it is assumed to be rigid. This assumption may cause serious deviations in computing performance characteristics. © Emerald Group Publishing Limited 2005 Mechanical components Hydrodynamics Fluid pressure λ, μ Lam' e...

... The present paper proposes the mapping of the behaviour of a smooth, isothermal and hydrodynamic (j‐b) as a first step towards a future representation of the behaviour of j‐b's with limited length and high lubricating clearance with or without macro or micro topographic features operating under high loads...

...N.B. Naduvinamani; G. Gurubasavaraj The stochastic theory of hydrodynamic lubrication of rough surfaces is used to study the effect of surface roughness on the performance of the squeeze film between circular curved plate and a flat plate. In the context of stochastic theory, two types of one...

...V.H. Mucino; J.E. Smith; K. Sun In this paper a new method for the hydrodynamic analysis of a sliding cylinder in a lubricated parallel track is presented. The method is an extension of Booker’s “Mobility Method” (developed for cylindrical journal bearings) for the case of a non‐rotating sliding...