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TECHNICAL PAPERS

Influence of Inlet Conditions on the Thermohydrodynamic State of a Fully Circumferentially Grooved Journal Bearing

[+] Author and Article Information
P. S. Keogh

Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, United Kingdome-mail: enspsk@bath.ac.uk

M. M. Khonsari

Mechanical Engineering Department, 2508 CEBA, Louisiana State University, Baton Rouge, LA 70803e-mail: khonsari@me.lsu.edu

J. Tribol 123(3), 525-532 (Jul 06, 2000) (8 pages) doi:10.1115/1.1308029 History: Received February 15, 2000; Revised July 06, 2000
Copyright © 2001 by ASME
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References

Figures

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Schematic diagram of fully circumferentially grooved journal bearing
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(a) Axial profile of fully circumferentially grooved journal bearing showing groove supply and film entry temperatures; (b) Cross section of fully circumferentially grooved journal bearing through a bearing land
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Comparison of predicted temperatures T⁁B,T⁁f with those measured by Maki and Ezzat. The measured supply temperatures were used as the film inlet temperatures for the predictions with a 23°C ambient
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Comparison of predicted mean bearing temperatures T⁁B with those measured by Maki and Ezzat. The measured supply temperatures were used to evaluate the film inlet temperatures according to Eq. (29) with Φ=0 and a 23°C ambient. The α values range from 0 to 1 in steps of 0.1
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Comparison of predicted mean bearing temperatures T⁁B with those measured by Maki and Ezzat. The measured supply temperatures were used to evaluate the film inlet temperatures according to Eq. (29) with the source term included and a 30°C ambient. The α values range from 0 to 1 in steps of 0.1
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Contour plot showing variation of predicted film inlet temperature T0 (°C) with eccentricity ratio and groove supply temperature. The running speed is 1047 rad/s with a 30°C ambient. The film inlet temperatures were evaluated with α=0.1
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Dimensionless pressure contour plot with ε=0.5. The running speed is 1047 rad/s with a 30°C ambient. The groove supply temperature was 60°C
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Variation of predicted attitude angle with eccentricity ratio and groove supply temperature. The running speed is 1047 rad/s with a 30°C ambient. The film inlet temperatures were evaluated with α=0.1
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Comparison of predicted mean bearing temperatures T⁁B with those measured by Maki and Ezzat. The measured supply temperatures were used to evaluate the film inlet temperatures according to Eq. (29) with Φ=0 and a 30°C ambient. The α values range from 0 to 1 in steps of 0.1
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Contour plot showing variation of predicted maximum bearing temperature (°C) with eccentricity ratio and groove supply temperature. The running speed is 1047 rad/s with a 30°C ambient. The film inlet temperatures were evaluated with α=0.1

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