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TECHNICAL PAPERS

An FFT-Based Transient Flash Temperature Model for General Three-Dimensional Rough Surface Contacts

[+] Author and Article Information
Jianqun Gao, Si C. Lee

Department of Mechanical Engineering, The Ohio State University, Columbus, OH 43210

Xiaolan Ai, Harvey Nixon

The Timken Company, Canton, OH 44706

J. Tribol 122(3), 519-523 (Sep 21, 1999) (5 pages) doi:10.1115/1.555395 History: Received February 05, 1999; Revised September 21, 1999
Copyright © 2000 by ASME
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References

Figures

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Model of sliding rough contact
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Comparison of the temperature solutions for a moving uniform rectangular heat source on a semi-infinite medium. The solution is plotted at the centerline along the sliding direction (Vslx/4κ=7.56).
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Comparison of maximum temperature rise for a Hertzian contact
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Contact pressure distribution for a transversely rough surface
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(a) Flash temperature distribution for a transversely rough surface (simulation timesteps=10). (b) Flash temperature distribution for a transversely rough surface (simulation timesteps=50). (c) Flash temperature distribution for a transversely rough surface (steady-state solution, simulation timesteps=200).
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Variation of maximum flash temperature as a function of number of timesteps.
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Flash temperature distribution for a longitudinally rough surface (steady-state solution, simulation timesteps=200)

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