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TECHNICAL PAPERS

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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References

Figures

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Typical Raman spectrum of the 5P4E/8CB mixture at atmospheric pressure with the 514.5 nm laser line
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Schematic representation of the EHD device under the Raman microscope
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View of the sphere/plane contact under the Raman microscope
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Calibration curve of the frequency shift of the 1607 cm−1 Raman line of 8CB as a function of pressure
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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
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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
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Influence of the speed parameter on the pressure distribution for a constant applied load w=32 N (a) pure 5P4E (b) 5P4E/8CB mixture
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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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