Experimental and numerical study of tooth finishing processes contribution to gear noise
TypeArticles dans des revues avec comité de lecture
The contribution o fgear tooth flank surface micro-finish on gear noise has not yet been taken into consideration. This paper is devoted to study the simultaneous effect of tooth roughness and lubricant viscosity on automotive gear vibrations.The vibrations performances were evaluated on an instrumented test rig under both dry and wet conditions. A non-destructive replication technique coupled to 3D optical measures was used to acquire the flanks topographies,which were characterized using multiscale decomposition. A three-dimensional finite element simulation of a helical gear was performed to assess the micro-scales impact on gear noise.Numerical representative surfaces morphologies were introduced into the simulation and compared through the transmission error calculation. Results have shown gear noise dependence on tooth finishing processes.
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JOLIVET, Simon; MEZGHANI, Sabeur; EL MANSORI, Mohamed; VARGIOLU, R.; ZAHOUANI, Hassan (Elsevier BV, 2017)Micro geometry of a gear tooth influences the contact durability and wear performance. In this paper, different gear tooth flanks have been manufactured by different finishing processes, which were then characterized using ...
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MEZGHANI, Sabeur; DEMIRCI, Ibrahim; YOUSFI, Mohammed; EL MANSORI, Mohamed (Elsevier, 2013)The texture change during running-in alters the performance and efficiency of a tribo-mechanical system. During mass production of cylinder liners, a final finishing stage known as ‘‘plateau honing’’ is commonly added to ...
DEMIRCI, Ibrahim; MEZGHANI, Sabeur; YOUSFI, Mohammed; EL MANSORI, Mohamed (ASME, 2014-01)Determining friction is as equally essential as determining the film thickness in the lubricated contact, and is an important research subject. Indeed, reduction of friction in the automotive industry is important for ...
Mutual influence of cross hatch angle and superficial roughness of honed surfaces on friction in ring-pack tribo-system MEZGHANI, Sabeur; DEMIRCI, Ibrahim; EL MANSORI, Mohamed; YOUSFI, Mohammed (elsevier, 2013)The cylinder bore surface texture, widely produced by the honing technique, is an essential factor for a good engine performance (friction, oil consumption, running-in, wear etc.). This explains the improvement and development ...