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Article

Measurement and Modeling of Normal Contact Stiffness and Contact Damping at the Meso Scale

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

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

J. Vib. Acoust 127(1), 52-60 (Mar 21, 2005) (9 pages) doi:10.1115/1.1857920 History: Received September 01, 2003; Revised February 06, 2004; Online March 21, 2005
Copyright © 2005 by ASME
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References

Figures

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Schematic of a Hertzian contact: (a) smooth interface, (b) rough interface
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(a) Infinitely smooth surfaces in contact; (b) rough flat surfaces in contact; (c) GW contact model
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Analytical contact stiffness versus contact load
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Meso-scale contact stiffness and damping tester (a) schematic, (b) system model
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Calibration of the strain gauge used for measuring the normal contact load
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(a) Typical acceleration signal, (b) average spectra for rough flat surfaces contact with three different contact loads
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Hertzian contact: (a) contact stiffness; (b) contact damping ratio versus contact load
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Flat rough contacting surfaces: (a) contact stiffness; (b) contact damping ratio versus contact load
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Experimental measurements for flat rough contacting surfaces under different conditions: (a) contact stiffness; (b) contact damping ratio versus contact load

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