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Characterization of Friction Joints Subjected to High Levels of Random VibrationThis 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.
Document ID
20130000237
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
deSantos, Omar
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
MacNeal, Paul
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 27, 2013
Publication Date
March 10, 2012
Subject Category
Mechanical Engineering
Meeting Information
Meeting: SPIE Smart Structures/NDE
Location: San Diego, CA
Country: United States
Start Date: March 10, 2012
End Date: March 14, 2012
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Other
Keywords
aluminum
random vibration
friction
stick-slip
Dicronite
Plasmadize

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