In-situ Pressure Measurements Using Raman Microspectroscopy in a Rolling Elastohydrodynamic Contact

[+] Author and Article Information
I. Jubault, J. L. Mansot

Groupe de Technologie des Surfaces et Interfaces, Université Antilles-Guyane, Pointe à Pitre, Guadeloupe

P. Vergne

Laboratoire de Mécanique des Contacts, UMR CNRS/INSA de Lyon 5514, Villeurbanne, France

D. Mazuyer

Laboratoire de Tribologie et de Dynamique des Systèmes, UMR CNRS 5513, Ecole Centrale de Lyon, Ecully, France

J. Tribol 124(1), 114-120 (May 22, 2001) (7 pages) doi:10.1115/1.1401016 History: Received February 27, 2001; Revised May 22, 2001
Copyright © 2002 by ASME
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Grahic Jump Location
Typical Raman spectrum of the 5P4E/8CB mixture at atmospheric pressure with the 514.5 nm laser line
Grahic Jump Location
Schematic representation of the EHD device under the Raman microscope
Grahic Jump Location
View of the sphere/plane contact under the Raman microscope
Grahic Jump Location
Calibration curve of the frequency shift of the 1607 cm−1 Raman line of 8CB as a function of pressure
Grahic Jump Location
Comparison between pure 5P4E and 5P4E/8CB pressure distributions for an applied load w=32 N and a rolling speed u=0.094 m/s
Grahic Jump Location
Influence of the load parameter on the dimensionless pressure distribution for a constant rolling speed u=0.094 m/s (a) pure 5P4E (b) 5P4E/8CB mixture
Grahic Jump Location
Influence of the speed parameter on the pressure distribution for a constant applied load w=32 N (a) pure 5P4E (b) 5P4E/8CB mixture
Grahic Jump Location
Contour plots of pressure and 3D-pressure maps for an applied load w=32 N(PH=0.97 GPa) and a rolling speed u=0.094 m/s (a) pure 5P4E (b) 5P4E/8CB mixture




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