TY - JOUR
T1 - In situ pressure measurements in dimpled elastohydrodynamic sliding contacts by Raman microspectroscopy
AU - Yagi, Kazuyuki
AU - Vergne, Philippe
AU - Nakahara, Tsunamitsu
N1 - Funding Information:
K. Yagi was supported by a Research Fellowship for Young Scientists of the Japan Society for the Promotion of Science (JSPS) during conducting this work at LaMCoS, INSA de Lyon. The authors would like to thank N. Devaux from LaMCoS for his collaboration in the experimental work.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2009/5
Y1 - 2009/5
N2 - In situ pressure measurements within dimples formed in glass-steel point contacts under various sliding conditions were performed using Raman microspectroscopy. Experiments were conducted using a ball-on-disc type apparatus in which a circular contact is formed between a rotating glass disc and a rotating steel ball. Film thickness distributions were measured by duochromatic optical interferometry. Polyphenyl ether oil (5P4E) which has a high pressure-viscosity coefficient was used to produce a dimple in the contact area. Experimental results show that the pressure increases locally in the dimple zone and the pressure profile changes, accompanying the changes of the dimple location as a function of the slide-to-roll ratio. The maximum pressure is located downstream the maximum height of the dimple. The rheological response of the oil film under dimple occurrence conditions is discussed.
AB - In situ pressure measurements within dimples formed in glass-steel point contacts under various sliding conditions were performed using Raman microspectroscopy. Experiments were conducted using a ball-on-disc type apparatus in which a circular contact is formed between a rotating glass disc and a rotating steel ball. Film thickness distributions were measured by duochromatic optical interferometry. Polyphenyl ether oil (5P4E) which has a high pressure-viscosity coefficient was used to produce a dimple in the contact area. Experimental results show that the pressure increases locally in the dimple zone and the pressure profile changes, accompanying the changes of the dimple location as a function of the slide-to-roll ratio. The maximum pressure is located downstream the maximum height of the dimple. The rheological response of the oil film under dimple occurrence conditions is discussed.
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U2 - 10.1016/j.triboint.2008.10.005
DO - 10.1016/j.triboint.2008.10.005
M3 - Article
AN - SCOPUS:60649107305
SN - 0301-679X
VL - 42
SP - 724
EP - 730
JO - Tribology International
JF - Tribology International
IS - 5
ER -