Performance of dynamically loaded journal bearings lubricated with couple stress fluids considering the elasticity of the liner

2008 ◽  
Vol 9 (7) ◽  
pp. 916-921 ◽  
Author(s):  
Yan-yan Ma
Keyword(s):  
Couple Stress ◽  
Journal Bearings ◽  
Dynamically Loaded ◽  
Couple Stress Fluids

Squeeze Film Problems of Long Partial Journal Bearings for Non-Newtonian Couple Stress Fluids with Pressure-Dependent Viscosity

2011 ◽  
Vol 66 (8-9) ◽  
pp. 512-518 ◽  
Author(s):  
Jaw-Ren Lin ◽  
Li-Ming Chu ◽  
Chi-Ren Hung ◽  
Rong-Fang Lu
Keyword(s):  
Couple Stress ◽  
Load Capacity ◽  
Perturbation Technique ◽  
Closed Form Solution ◽  
Journal Bearings ◽  
Form Solution ◽  
Squeeze Film ◽  
Pressure Dependent Viscosity ◽  
Dependent Viscosity ◽  
Couple Stress Fluids

Abstract According to the experimental work of C. Barus in Am. J. Sci. 45, 87 (1893) [1], the dependency of liquid viscosity on pressure is exponential. Therefore, we extend the study of squeeze film problems of long partial journal bearings for Stokes non-Newtonian couple stress fluids by considering the pressure-dependent viscosity in the present paper. Through a small perturbation technique, we derive a first-order closed-form solution for the film pressure, the load capacity, and the response time of partial-bearing squeeze films. It is also found that the non-Newtonian couple-stress partial bearings with pressure-dependent viscosity provide better squeeze-film characteristics than those of the bearing with constant-viscosity situation.

Thermohydrodynamic analysis of journal bearings lubricated with couple stress fluids

2001 ◽  
Vol 34 (5) ◽  
pp. 335-343 ◽  
Author(s):  
Xiao-Li Wang ◽  
Ke-Qin Zhu ◽  
Shi-Zhu Wen
Keyword(s):  
Couple Stress ◽  
Journal Bearings ◽  
Couple Stress Fluids
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