CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): This paper shows results of numerical solutions modified Reynolds equations for laminar unsteady oil flow in slide journal bearing gap. Laminar unsteady oil flow is performed during periodic and unperiodic perturbations of bearing load or is caused by the changes of gap height in time.

• Published in: Journal of KONES · 2010Authors: Pawe Krasowski[PDF]

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): This paper shows results of numerical solutions the modified Reynolds equations for laminar unsteady oil flow in slide journal bearing gap. Laminar unsteady oil flow is performed during periodic and unperiodic perturbations of bearing load or is caused by the changes of gap height in time.

unsteady flow past an impulsively started, semi-infinite, vertical plate with variable temperature in the presence of thermal radiation. Unsteady heat and mass transfer by free-convective MHD micropolar fluid flow with chemical reaction in the presence of heat generation was studied by Olajuwon and Oahimire (2014).

This paper shows results of numerical solutions a modified Reynolds equation for laminar unsteady oil flow in slide journal plane bearing gap. It shows a preliminary analysis of pressure distribution change in the bearing by laminar, unsteady lubrication caused by velocity perturbations of oil flow in the longitudinal direction of a bearing.

According to the vertical vibration phenomena existing in cold rolling mills, the unsteady lubrication mechanism in roll gap and its influence to rolling stability was chosen as the case for analysis.

In the present work, a multi-factor coupling dynamic model of a rolling mill system for a dynamic roll gap during an unsteady lubrication process was developed on the basis of the rolling theory, lubrication and the friction theory, and the mechanical vibration theory. The multi-factor coupling model of interfacial film binding was coupled with the rolling force model, dynamic roll gap ...

times were systematically analyzed during the unsteady mixed lubrication process. The effects of the main processing parameters on the critical speed and amplitude for self-excited vertical vibration were investigated. Keywords during, unsteady, lubrication, process, coupling, system, characteristic, dynamic, multi, roll, factor, gap, high,

• Published in: Tribology International · 2013Authors: Qiaoyi Wang · Zhengyi Jiang · Jingwei Zhao · Min FangAffiliation: Hangzhou Dianzi University · University of WollongongAbout: Coupling · Mill · Vibration · Lubrication[PDF]

The dynamics of unsteady magnetohydrodynamic convective fluid flow with radiation and thermophoresis of particles past a vertical porous plate moving through a binary mixture in an optically thin environment is investigated. The approximate form of the radiative heat flux is considered as the fourth power of temperature. Chemical reaction that occurs as the chemically reacting fluid flow ...

The vertical vibration, torsional vibration and horizontal vibration of mill stand couple together through the changing lubrication at roll bite [1]. The unsteady lubrication is the main cause for the self-excited vibration during rolling [2].

CHAPTER 3 FLOW PAST A SPHERE II: STOKES' LAW, THE BERNOULLI EQUATION, TURBULENCE, BOUNDARY LAYERS, FLOW SEPARATION INTRODUCTION 1 So far we have been able to cover a lot of ground with a minimum of material on fluid flow.

Jan 01, 2015 · Read "Dynamic behaviour of cold rolling mill with unsteady lubrication roll-gap interface during sheet metal forming process, International Journal of Surface Science and Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

A wide variety of lubrication problems involve the flow of non-Newtonian fluid between moving surfaces [1,2]. Our focus in the present article is lubrication by viscoplastic fluids, and, in particu-lar, on the role of a yield stress. Although viscoplastic fluids are commonly used as lubricants (grease, for example, has previously

Unsteady spreading of thin liquid films with small surface tension J. A. Moriarty and L. W. Schwartz ... liquid drop draining down a vertical wall under gravity. The analysis is based on the smallness of the surface tension term in the lubrication equation. In a region local to the front of the drop, where the surface curvature is large ...

• Published in: Physics of Fluids · 1991Authors: J A Moriarty · L W Schwartz · E O TuckAffiliation: University of Delaware · University of AdelaideAbout: Wave equation · Gravitation · Equations of motion · Surface tension · Kinematics · Drop[PDF]

usefulness of the hydromagnetic lubrication used in engineering systems. 2. MATHEMATICAL MODEL Consider the unsteady flow of an incompressible, electrically conducting, variable viscosity, variable thermal conductivity, viscous reactive fluid between two vertical walls under the influence of a transversely magnetic field of strength B0

Unsteady spreading of thin liquid films with small surface tension J. A. Moriarty and L. W. Schwartz ... liquid drop draining down a vertical wall under gravity. The analysis is based on the smallness of the surface tension term in the lubrication equation. In a region local to the front of the drop, where the surface curvature is large ...

• Published in: Physics of Fluids · 1991Authors: J A Moriarty · L W Schwartz · E O TuckAffiliation: University of Delaware · University of AdelaideAbout: Wave equation · Gravitation · Equations of motion · Surface tension · Kinematics · Drop

Unsteady MHD flow of a visco-elastic fluid along vertical porous surface with fluctuating temperature and concentration Arpita Mohanty, Pravat Kumar Rath, G. C. Dash 1Department of Mathematics, Prananath Autonomous College, Khordha-752057, Odisha, India

• Published in: IOSR Journal of Engineering · 2014Authors: Arpita Mohanty · Pravat Kumar Rath · G C Dash

The corresponding distributions of friction and pressure at varying surface roughness and times were systematically analyzed during the unsteady mixed lubrication process. The effects of the main processing parameters on the critical speed and amplitude for self-excited vertical .

Abstract. According to the vertical vibration phenomena existing in cold rolling mills, the unsteady lubrication mechanism in roll gap and its influence to rolling stability was .

Keywords: laminar unsteady lubrication, journal slide bearing, pressure, velocity perturbation 1. Introduction This article refer to the unsteady, laminar flows issue, in which modified Reynolds number Re* is [4, 5] smaller or equal to 2. Laminar, unsteady oil flow is performed during periodic and

A wide variety of lubrication problems involve the flow of non-Newtonian fluid between moving surfaces [1,2]. Our focus in the present article is lubrication by viscoplastic fluids, and, in particu-lar, on the role of a yield stress. Although viscoplastic fluids are commonly used as lubricants (grease, for example, has previously

Vertical Vibration Model for Unsteady Lubrication in Rolls-Strip Interface of Cold Rolling Mills more. by liza horobets. Research Interests: Mechanical Engineering. Download (.pdf) ... Vertical Vibration Model for Unsteady Lubrication in Rolls-Strip Interface of Cold Rolling Mills more. by liza horobets. Research Interests: Mechanical Engineering