@article {Gatignol:2016:0736-2935:7311,
title = "Detection of friction-induced instabilities at the origin of the squeal of wet poly-V belts",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "2016",
volume = "253",
number = "1",
publication date ="2016-08-21T00:00:00",
pages = "7311-7321",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2016/00000253/00000001/art00055",
author = "Gatignol, Simon and Le Bot, Alain",
abstract = "In the presence of water, the v-ribbed belts of the Automotive Accessory Belt Drive System can produce a typical squeal noise. The conditions of its appearance must be investigated as it could damage the brand image of car manufacturers.The squeal noise has been reproduced on a laboratory
test rig whose purpose is the investigation of diverse friction-induced instabilities at a belt-pulley interface.This noise shows a characteristic harmonic pattern whose natural frequency depends on the belt surface coating. A special attention has been paid to the negative slope of the friction-velocity
curve. The study showed that a negative slope is present when the noise appear but there isn't any correlation with its magnitude which is an usual cause for the appearance of self-excited vibrations. On another side the study of the vibrations of the belt has highlighted the presence of stick-slip
in the same time that the noise appears but only for a particular belt coating.The participation of other friction-induced instabilities (sprag-slip, mode-coupling) has been investigated by comparison of instability domains obtained by variations of several parameters in theoretical model
and experimental study.Finally, a microscopic study of the contact try to link noise appearance and tribological phenomenons.",
}