ANALYSIS OF VISCOSITY VARIATION EFFECT IN A WIDE SLIDER BEARING HAVING AN EXPONENTIAL FILM PROFILE IN THE PRESENCE OF MHD

2021 ◽  
Vol 10 (4) ◽  
pp. 1925-1936
Author(s):  
E. Sujatha ◽  
G. Lavanya ◽  
E.P. Siva
Keyword(s):  
Slider Bearing ◽  
Viscosity Variation ◽  
Film Profile

The one-dimensional gas-lubricated slider bearing

1980 ◽  
Vol 22 (1) ◽  
pp. 75-97
Author(s):  
J. J. Shepherd
Keyword(s):  
Singular Perturbation ◽  
Pressure Distribution ◽  
Singular Perturbation Theory ◽  
Slider Bearing ◽  
Perturbation Problem ◽  
Jump Discontinuities ◽  
Uniqueness Results ◽  
The One ◽  
Bearing Number ◽  
Film Profile

AbstractUnder the appropriate physical hypotheses, the problem of determining the pressure distribution in a gas-filled slider bearing becomes a singular perturbation problem as Λ, the bearing number, tends to infinity. This paper extends the results of an earlier one by the author to consider the case where the film profile has jump discontinuities in slope at points interior to the bearing. Application of the methods of general singular perturbation theory establishes the appropriate existence-uniqueness results for this problem, and a means is devised by which uniformly valid asymptotic approximations to the pressure distribution may be obtained for large values of Λ.

The Optimum Slider Bearing in Terms of Friction

1972 ◽  
Vol 94 (3) ◽  
pp. 275-279 ◽  
Author(s):  
S. M. Rohde
Keyword(s):  
Variational Method ◽  
Film Thickness ◽  
Variational Formulation ◽  
Slider Bearing ◽  
One Dimensional ◽  
First Case ◽  
Minimum Film Thickness ◽  
The Coefficient Of Friction ◽  
Constant Viscosity ◽  
Film Profile

The film profile which minimizes the coefficient of friction and the film profile which minimizes the total friction force for a given load for a one-dimensional slider bearing are determined using a variational method. The lubricant is assumed to be incompressible and of constant viscosity. The flow is assumed to be laminar, and the optimization in the first case is based upon an assumed minimum film thickness. It is shown by the use of the nonlocal variational formulation that these profiles do yield a minimum among all admissible profiles.

Analysis of Rough Porous Inclined Slider Bearing Lubricated With a Ferrofluid Considering Slip Velocity

2019 ◽  
Vol 7 (1) ◽  
pp. 387-396 ◽  
Author(s):  
Mohmmadraiyan M. Munshi ◽  
Ashok R. Patel ◽  
Gunamani Deheri
Keyword(s):  
Slip Velocity ◽  
Slider Bearing

scholarly journals Effect of roughness on porous triangular plates with MHD and viscosity variation

2020 ◽  
Author(s):  
S. Sangeetha ◽  
A. Govindarajan ◽  
E. Sujatha
Keyword(s):  
Viscosity Variation

Boundary Friction for a Line Contact Model: An Empirical Approach

2015 ◽  
Vol 642 ◽  
pp. 8-12
Author(s):  
William W.F. Chong ◽  
Miguel de La Cruz
Keyword(s):  
Steel Plate ◽  
Friction Model ◽  
Boundary Friction ◽  
Slider Bearing ◽  
Base Oil ◽  
Atomic Force ◽  
Alternative Approach ◽  
Nanoscale Friction ◽  
Friction Measurements ◽  
Good Agreement

The paper introduces an alternative approach to predict boundary friction for rough surfaces at micros-scale through the empirical integration of asperity-like nanoscale friction measurements. The nanoscale friction is measured using an atomic force microscope (AFM) tip sliding on a steel plate, confining the test lubricant, i.e. base oil for the fully formulated SAE grade 10w40. The approach, based on the Greenwood and Tripp’s friction model, is combined with the modified Elrod’s cavitation algorithm in order to predict the friction generated by a slider-bearing test rig. The numerical simulation results, using an improved boundary friction model, showed good agreement with the measured friction data.

Porous Composite Slider Bearing Lubricated with Magnetic Fluid

1991 ◽  
Vol 30 (Part 1, No. 10) ◽  
pp. 2513-2514 ◽  
Author(s):  
M. V. Bhat ◽  
G. M. Deheri
Keyword(s):  
Magnetic Fluid ◽  
Slider Bearing ◽  
Porous Composite

A Simple Approach to Evaluate Non-Newtonian Viscosity Effects in a Lubricating System

1987 ◽  
Vol 109 (1) ◽  
pp. 177-182 ◽  
Author(s):  
Patrick Bourgin ◽  
Joseph-Marc Francois
Keyword(s):  
Computer Code ◽  
Simple Approach ◽  
Rheological Parameters ◽  
Finite Width ◽  
Slider Bearing ◽  
Empirical Formulas ◽  
Newtonian Viscosity ◽  
Pocket Calculator ◽  
Viscosity Effects ◽  
Analytical Formulas

The working characteristics of a finite width slider bearing lubricated by a non-Newtonian fluid are computed. The analysis proposed here allows its performances to be evaluated by means of a pocket calculator. For that purpose, a computer code based on a finite element method is used. The program runs for different values of pertinent kinematical, geometrical and rheological parameters. The corresponding results are fitted by means of adequate analytical formulas, which are very easy to handle. The accuracy of these empirical formulas is investigated in several typical cases. The agreement with the numerical solution is proven to be satisfactory.

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