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Predictive Failure of Cylindrical Coatings Using Weibull AnalysisRotating, coated wiping rollers used in a high-speed printing application failed primarily from fatigue. Two coating materials were evaluated: a hard, cross-linked, plasticized polyvinyl chloride (PVC) and a softer, plasticized PVC. A total of 447 tests was conducted with these coatings in a production facility. The data were evaluated using Weibull analysis. The softer coating produced more than twice the life of the harder cross-linked coating and reduced the wiper replacement rate by two-thirds, resulting in minimum production interruption.
Document ID
20020081111
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Vlcek, Brian L. (Georgia State Univ. Statesboro, GA United States)
Hendricks, Robert C. (NASA Glenn Research Center Cleveland, OH United States)
Zaretsky, Erwin V. (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
September 7, 2013
Publication Date
July 1, 2002
Subject Category
Mechanical Engineering
Report/Patent Number
NAS 1.15:211381
NASA/TM-2002-211381
E-13128-1
Report Number: NAS 1.15:211381
Report Number: NASA/TM-2002-211381
Report Number: E-13128-1
Meeting Information
Meeting: Ninth International Symposium on Transport Phenomena and Dynamics of Rotating Machinery
Location: Honolulu, HI
Country: United States
Start Date: February 10, 2002
End Date: February 14, 2002
Sponsors: Pacific Centre of Thermal Fluids Engineering
Funding Number(s)
PROJECT: RTOP 274-00-SR
Distribution Limits
Public
Copyright
Public Use Permitted.

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