Friction-induced vibration of oscillating multi-degree of freedom polymeric sliding systems |
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Authors: | Ronald A. L. Rorrer Joshua C. Brown |
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Affiliation: | a Department of Mechanical Engineering, University of Colorado at Denver, 1200 Larimer Street, Denver, Colorado 80217, USA;b dbb fuel cell engines Corporation, 12190 Tech Center Drive, Poway, California 92064, USA |
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Abstract: | The purpose of this study is to investigate friction-induced vibration of oscillating systems. Special attention is focused on modeling polymer-on-metal systems. Past experimental and analytical friction results from non-oscillating or unidirectional translational sliding modes are extended into the oscillating sliding mode. Specifically, this refers to the incorporation of a representative functional shape of the friction–velocity relationships estimated from experimental results. Dependent on the relative sliding velocity between the frictionally coupled subsystems, the modeled system exhibits behavior such as a single stick–slip at the beginning of oscillatory motion, a single stick–slip at each motion reversal, or multiple stick-slip events during each half cycle of motion. Additionally, the boundary of incipient friction-induced vibration was identified via a rigorous definition of friction-induced vibration. |
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Keywords: | Stick– slip friction Oscillating sliding Polymers |
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