scholarly journals The Technique of an Interconnection Problem of the Hydrodynamic Lubrication Theory and the Nonlinear Dynamics for Mechanical Systems “An Elastic Crankshaft on Journal Bearings”

2016 ◽  
Vol 150 ◽  
pp. 647-653 ◽  
Author(s):  
Yu.V. Rozhdestvensky ◽  
N.A. Khozeniuk ◽  
A.A. Mylnikov
Keyword(s):  
Nonlinear Dynamics ◽  
Hydrodynamic Lubrication ◽  
Mechanical Systems ◽  
Journal Bearings ◽  
Lubrication Theory ◽  
Hydrodynamic Lubrication Theory

Lubrication With Binary Mixtures: Bubbly Oil

1993 ◽  
Vol 115 (2) ◽  
pp. 253-260 ◽  
Author(s):  
K. Chamniprasart ◽  
A. Al-Sharif ◽  
K. R. Rajagopal ◽  
A. Z. Szeri
Keyword(s):  
Hydrodynamic Lubrication ◽  
Linear Equations ◽  
Ideal Gas ◽  
Journal Bearings ◽  
Lubrication Theory ◽  
Newtonian Liquid ◽  
Good Qualitative Agreement ◽  
Hydrodynamic Lubrication Theory ◽  
Non Linear Equations ◽  
Newtonian Behavior

Mixtures do not exhibit Newtonian behavior even when their individual components themselves are Newtonian, and thus classical lubrication theory is not applicable to bearings lubricated with mixtures. Our objective is to extend hydrodynamic lubrication theory to lubrication with mixtures of a Newtonian liquid and an ideal gas. To this end, we make use of the theory of interacting continua and derive two coupled non-linear equations in component densities. The extended theory is tested on finite journal bearings: our results for pressure distribution show good qualitative agreement with the experimental data of Braun et al.

A Thermal Hydrodynamic Lubrication Theory for Hydrostatic Extrusion of Low Strength Materials

1976 ◽  
Vol 98 (2) ◽  
pp. 335-342 ◽  
Author(s):  
R. W. Snidle ◽  
B. Parsons ◽  
D. Dowson
Keyword(s):  
Plastic Deformation ◽  
Theoretical Analysis ◽  
Thermal Effects ◽  
Hydrodynamic Lubrication ◽  
Extrusion Process ◽  
Lubrication Theory ◽  
Lubricant Film ◽  
Hydrostatic Extrusion ◽  
Solid Friction ◽  
Hydrodynamic Lubrication Theory

The paper presents a theoretical analysis of hydrodynamic lubrication in the hydrostatic extrusion process which includes a consideration of thermal effects in the lubricant film arising from the work of plastic deformation. A Newtonian lubricant with an exponential pressure-temperature-viscosity relationship has been assumed and allowance has been made for the effects of redundant deformation of the worked material. The results of the theory are compared with those from previous isothermal and solid friction theories.

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