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Please use this identifier to cite or link to this item: http://hdl.handle.net/2014/42393

Title: Characterization of friction joints subjected to high levels of random vibration
Authors: Mechanical Engineering
de Santos, Omar
MacNeal, Paul
Keywords: Dicronite
Plasmadize
aluminum
stick-slip
random vibration
friction
Issue Date: 2012
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.
Citation: SPIE Smart Structures/NDE, San Diego, California, Marcy 10-14, 2012.
Abstract: This paper describes the test program in detail including test sample description, test procedures, and vibration test results of multiple test samples. The material pairs used in the experiment were Aluminum-Aluminum, Aluminum- Dicronite coated Aluminum, and Aluminum-Plasmadize coated Aluminum. Levels of vibration for each set of twelve samples of each material pairing were gradually increased until all samples experienced substantial displacement. Data was collected on 1) acceleration in all three axes, 2) relative static displacement between vibration runs utilizing photogrammetry techniques, and 3) surface galling and contaminant generation. This data was used to estimate the values of static friction during random vibratory motion when "stick-slip" occurs and compare these to static friction coefficients measured before and after vibration testing.
URI: http://hdl.handle.net/2014/42393
Appears in Collections:JPL TRS 1992+

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