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TECHNICAL PAPERS

THD Analysis of High Speed Heavily Loaded Journal Bearings Including Thermal Deformation, Mass Conserving Cavitation, and Turbulent Effects

[+] Author and Article Information
Chao Zhang, Zixia Yi, Zhiming Zhang

Research Institute of Bearings, Shanghai University, Shanghai, 20072, P. R. China

J. Tribol 122(3), 597-602 (Nov 02, 1999) (6 pages) doi:10.1115/1.555407 History: Received January 06, 1999; Revised November 02, 1999
Copyright © 2000 by ASME
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References

Figures

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Geometry of the modified pocket journal bearing
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Schematic view of the test rig
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Diagram showing thermocouple and pressure hole locations in the bushing and grooves (○ thermocouple; + pressure hole)
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Distribution of the film pressure, temperature in the oil-bushing interface, film and bushing temperature, and thermal deformation in the bearing mid-plane (load=70 kN for speed 6000 RPM, inlet oil temperature 40.2°C; for speed 7000 RPM, inlet oil temperature 40.5°C): (a) speed 6000 RPM; (b) speed 7000 RPM; (c) speed 6000 RPM; (d) speed 7000 RPM; (e) speed 6000 RPM, with thermal deformation; (f) speed 7000 RPM, with thermal deformation; (g) speed 6000 RPM, without thermal deformation; (h) speed 7000 RPM, without thermal deformation; (i) speed 6000 RPM; and (j) speed 7000 RPM.
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Distribution of the thermal deformation and temperature in the oil-bushing interface for different load and speed (inlet oil temperature 40.5°C): (a) load 70 kN; (b) load 90 kN; (c) load 70 kN; and (d) load 90 kN.

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