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TECHNICAL PAPERS

A Dynamic Friction Model for Unlubricated Rough Planar Surfaces

[+] Author and Article Information
Xi Shi, Andreas A. Polycarpou

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801

J. Tribol 125(4), 788-796 (Sep 25, 2003) (9 pages) doi:10.1115/1.1573229 History: Received March 06, 2002; Revised December 11, 2002; Online September 25, 2003
Copyright © 2003 by ASME
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References

Figures

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Interfacial forces versus external load under static conditions. Simulations parameters listed in Table 1.
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Dynamic contact and friction simulation for Case 5 (Fo=50 N, Ω=8.3 KHz, ζ=0.01, α=0.05): (a) instantaneous normal displacement; (b) dynamic contact force; (c) friction force; and (d) dynamic friction coefficient
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Dynamic contact and friction simulation for Case 8 (Fo=50 N, Ω=8.3 KHz, ζ=0.01, α=0.1): (a) instantaneous normal displacement; (b) dynamic contact force; (c) friction force; and (d) dynamic friction coefficient
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Transfer function estimate between interfacial normal and friction forces: (a) Case 1 (Fo=50 N, Ω=8.3 KHz, α=0.01, ζ=0); (b) Case 2 (Fo=50 N, Ω=8.3 KHz, α=0.01, ζ=0.01); and (c) Case 3 (Fo=50 N, Ω=8.3 KHz, α=0.01, ζ=0.05)
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Dynamic contact and friction simulation for Fo=5 N, Ω=3.82 KHz, ζ=0.1, α=0.05): (a) normal displacement; (b) dynamic contact force; (c) friction force; and (d) dynamic friction coefficient
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Transfer function estimate between interfacial normal and friction forces for Fo=5 N, Ω=3.82 KHz, α=0.05, ζ=0.1
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Contacting pair with friction: (a) mass block with roughness contacting a surface, insert shows the Greenwood-Williamson roughness surface model; (b) model of a static friction pair showing interfacial forces with adhesion; (c) model of dynamic friction pair for a sliding mass block with adhesion force; and (d) model of dynamic friction pair showing interfacial forces without adhesion

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