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TECHNICAL PAPERS

Nonlinear Transient Behavior of a Sliding System With Frictionally Excited Thermoelastic Instability

[+] Author and Article Information
P. Zagrodzki

Raytech Composites, Inc., Crawfordsville, IN 47933

K. B. Lam, E. Al Bahkali, J. R. Barber

University of Michigan, Ann Arbor, MI 48109

J. Tribol 123(4), 699-708 (Jan 04, 2001) (10 pages) doi:10.1115/1.1353180 History: Received August 17, 2000; Revised January 04, 2001
Copyright © 2001 by ASME
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References

Figures

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Schematic of sliding system
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Character of temperature distribution in a skin layer of poor conductor
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Detail of finite element mesh
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Contact pressure distribution at a series of instants during the stage with full contact
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Change in amplitude and location of pressure perturbation: pa—amplitude of pressure perturbation; pm—mean pressure; x0—location of maximum pressure along x-axis
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Temperature distribution representing dominant eigenmode
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Dimensionless critical speed determined by Lee and Barber’s analytical model and estimated by finite element model
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Dimensionless migration speed determined by Lee and Barber’s analytical model and estimated by finite element model
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Contact pressure distribution at a series of instants during the stage with contact separation
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Temperature contours at different instants
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Temperature distribution along contact surfaces at different instants
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Maximum contact pressure, contact length and migration speed: pmax,pm—maximum and mean contact pressure, respectively; Lc—contact length; L—length of the interface; cs—migration speed; c—migration speed in the full contact phase.
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Maximum contact pressure, contact length and migration speed: pmax,pm—maximum and mean contact pressure, respectively; Lc—contact length; L—length of the interface; cs—migration speed; c—migration speed in the full contact phase
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Contact pressure distribution in the transient stage with contact separation and in the quasi-steady state
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Dimensionless critical speed determined by Lee and Barber’s analytical model: V1, V2, and V3—sliding speeds used in simulations
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Contact pressure distribution at a series of instants from simulation with two unstable modes

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