TEHD Behavior of Non-Newtonian Dynamically Loaded Journal Bearings in Mixed Lubrication for Direct Problem

[+] Author and Article Information
Chao Zhang

Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208e-mail: czhang@nwu.edu

J. Tribol 124(1), 178-185 (Apr 04, 2001) (8 pages) doi:10.1115/1.1396342 History: Received October 12, 2000; Revised April 04, 2001
Copyright © 2002 by ASME
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(a) Meshes for Ce(i,k); and (b) meshes for Ct(i,j)
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Flow chart of the numerical calculation
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(a) Rough surface profile; and (b) relation of the average contact pressure and the average gap
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Effects of roughness texture on Max. film pressure, temperature in oil-bushing interface, oil leakage flow, and power loss (n=0.9,κ=500 μs, TEHD, A=0.466): (a) κ=0; (b) κ=500 μs; (c) κ=500 μs; (d) κ=500 μs; (e) κ=500 μs; and (f ) κ=500 μs.
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Effects of roughness texture and shear thinning on temperature in oil-bushing interface (κ=500 μs, THD, A=0.482); (a) n=0.9; and (b) n=1.
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Effects of thermoelastic deformation and shear thinning on maximum expected film pressure (smooth surface, κ=500 μs,A=0.473): (a) n=0.9; and (b) n=1
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Effects of roughness texture on temperature contours in a bushing (n=0.9,κ=500 μs, TEHD, A=0.466): (a) smooth surface (Tmax=102.3°C); (b) longitudinal roughness (Tmax=104.3°C); and (c) transverse roughness (Tmax=102.2°C)
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Temperature contours in the film at every 90 journal rotation degrees (n=0.9,κ=500 μs, longitudinal roughness, TEHD and A=0.466,Tmax=104.3°C)




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