Identifying Coulomb and Viscous Friction in Forced Dual-Damped Oscillators

[+] Author and Article Information
Jin-Wei Liang

Department of Mechanical Engineering, MingChi Institute of Technology, Taipei, Taiwan, 24306, R.O.C.

Brian F. Feeny

Department of Mechanical Engineering, Michigan State University, East Lansing, Michigan 48824-1226

J. Vib. Acoust 126(1), 118-125 (Feb 26, 2004) (8 pages) doi:10.1115/1.1640356 History: Received February 01, 2002; Revised June 01, 2003; Online February 26, 2004
Copyright © 2004 by ASME
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A schematic diagram depicting a single-degree-of-freedom oscillator with viscous, Coulomb friction and base excitation.
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A photograph of experimental set-up illustrating the linear-bearing systems, the electromagnetic shaker, the LVDTs, etc
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The experimental input-output amplitude relationships and the least-squares damping estimation
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A typical time history depicting responses of input, output, and the calculated friction force for a sliding case
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The friction-velocity plot showing abundant dynamics including contact compliance, memory effect, stochastic sliding, etc., for a sliding motion case
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The friction-velocity plot for a stick-slip response




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