Journal ArticleDOI
The steady state performance of a hydrodynamic journal bearing with a non-newtonian lubricant
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TLDR
In this article, the Reiner-Philippoff shear stress-shear strain rate relation is derived for a non-Newtonian (shear thinning as well as shear thickening) lubricant under conventional hydrodynamic lubrication approximations.About:
This article is published in Wear.The article was published on 1979-07-01. It has received 12 citations till now. The article focuses on the topics: Reynolds equation & Non-Newtonian fluid.read more
Citations
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A new dynamic mesh algorithm for studying the 3D transient flow field of tilting pad journal bearings
Abstract: A new dynamic mesh algorithm is developed in this paper to realize the three-dimensional (3D) computational fluid dynamics (CFD) method for studying the small clearance transient flow field of tilt...
Journal ArticleDOI
Analysis of Hydrodynamic Journal Bearings Having Non-Newtonian Lubricants Using the Finite Element Method
TL;DR: In this article, the static performance characteristics for finite journal bearing have been obtained for non-Newtonian lubricants represented by seven different models from the momentum and the continuity equations in the cylindrical coordinates for Newtonian Lubricants.
Journal ArticleDOI
Analysis of hydrodynamic journal bearings having non-Newtonian lubricants
TL;DR: In this article, the effect of nonlinear behavior on the performance characteristics of finite-width journal bearings is investigated using the Eyring model for the shear stress and shear strain rate.
Journal ArticleDOI
Analysis of Hydrodynamic Journal Bearings Having Non-Newtonian Lubricants (Prandtl Model) by a Finite Element Method:
TL;DR: In this paper, the effect of nonlinear behaviour on the performance characteristics of finite width journal bearings is investigated using the Prandtl model, where the finite element method, using Galerkin's technique, has been used to solve the Navier-Stokes equations in cylindrical coordinates, representing the flow field in the clearance space of a bearing using Newtonian fluids, and the non-Newtonian effect is introduced by modifying the viscosity term for the model in each iteration.
Journal ArticleDOI
Modified Reynolds Equation for Non-Newtonian Fluid With Rheological Model in Frequency Domain
Chen Haosheng,Chen Darong +1 more
TL;DR: In this article, a modified Reynolds equation for non-Newtonian fluid viscosity was provided. But the authors used three nonlinear functions instead of the common power law model to describe non-newtonian properties more completely.
References
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Journal ArticleDOI
Hydrodynamic Lubrication of Journal Bearings by Pseudo-Plastic Lubricants : Part 2, Experimental Studies
Sanae Wada,Hirotsugu Hayashi +1 more
TL;DR: In this paper, an experimental analysis of the relationship between the nonlinearity of polyisobutylene and the performance of bearing was conducted. But the experimental results of the performance was limited to the case of spindle oils, and the results showed that the film pressure and the load capacity of pseudo-plastic fluids are smaller than those of Newtonian fluids whose viscosity is equal to the initial viscosities.
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The Effect of Lubricant Viscosity and Composition on Engine Friction and Bearing Wear. II
TL;DR: In this article, the effects of polymer type, molecular weight and concentration are considered, and it is concluded that both the bulk properties of oils, such as viscoelasticity, and surface effects are important in accounting for the advantage of polymer-modified oils.
Journal ArticleDOI
Calculated load capacity of non-newtonian lubricants in finite width journal bearings
TL;DR: In this paper, a modified form of Reynolds' equation was derived for steady finite width journal bearings, and the finite difference technique with successive over relaxation was used incorporating Reynolds' boundary conditions for pressure to obtain the pressure distribution and hence the attitude angle.
Journal ArticleDOI
Non-newtonian flow-between parallel boundaries in linear movement
Zeev Rotem,Reuel Shinnar +1 more
TL;DR: In this article, the flow equations of a general non-elastic fluid are solved for the case of steady, incompressible, laminar flow between parallel boundaries in linear movement, and with an arbitrary pressure gradient.