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256 results on '"Ciulli, Enrico"'

106. Scratch Tests

Author

Bassani, Roberto, Ciulli, Enrico, Valleggi, R., and DI CESARE, C.

Published
2006

116. New perspectives in scuffing

Author

Bassani, Roberto, Ciulli, Enrico, Polacco, A., Pugliese, G., and Facchini, M.

Subjects
scuffing
Published
2004

140. Lubrificazione additivata

Author

Bassani, Roberto, Ciulli, Enrico, and Lorenzetti, M.

Subjects
lubrificazione
Published
1999

143. The influence of the slide-to-roll ratio on the friction coefficient and film thickness of EHD point contacts under steady state and transient conditions

Author

Ciulli, Enrico, Stadler, Kenred, Draexl, Thomas, Ciulli, Enrico, Stadler, Kenred, and Draexl, Thomas

Abstract

SUMMARY The effect of different slide-to-roll ratios has been experimentally investigated under steady state and transient conditions using a steel ball in contact with the plane surface of a glass disc. Under transient conditions the entraining velocity has been varied with a sinusoidal law at two different frequencies. Measurements of the friction force and film thickness using optical interferometry have been made. For the same working conditions, different friction coefficient trends found for positive and negative slide-to-roll ratios can be related to different film thickness values and shapes. The combination of different thermal effects could be a possible explanation for the obtained results.

Published
2008

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