Analyse des pertes de puissance dans les transmissions par engrenages

Diab, Yasser; Ville, Fabrice; Changenet, Christophe; Velex, Philippe

doi:10.1051/meca:2008028

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2014

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Cited by 2 publications

(1 citation statement)

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“…Experiments have still shown that WPL value is modified when helix angle value becomes not null. For example Dawson (2) noticed a decrease of WPL when the helix angle of large width gears is increased whereas opposite observation was made in Diab et al investigation (8) when using highly different gear characteristics. More investigations are therefore needed to better understand the contribution of helix angle in WPL if appropriate model is wanted.…”

Section: Introductionmentioning

confidence: 92%

Preliminary numerical investigations on windage power losses generated by helical gears

Voeltzel

Marchesse

Changenet

et al. 2014

International Gear Conference 2014: 26th–28th August 2014, Lyon

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Section: Introductionmentioning

confidence: 92%

Preliminary numerical investigations on windage power losses generated by helical gears

Voeltzel

Marchesse

Changenet

et al. 2014

International Gear Conference 2014: 26th–28th August 2014, Lyon

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Pressure estimation of the trapped and squeezed oil between teeth spaces of spur gears

Lasri¹,

Belfals²,

Najji³

et al. 2014

ams

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This paper aims to present the preliminary results of power losses due to the trapping and squeezing of an incompressible fluid between teeth spaces in geared transmissions during the meshing phase. When the operating speeds are very high, these losses become important and jet lubrication is used. Since this type of losses involves complex hydrodynamic phenomena that are difficult to describe in analytical formulations, a new approximate numerical model to predict power 5318 Abdelilah Lasri et al.losses due to the trapped and squeezed fluid for spur gears was developed. Besides, a numerical tool in the geometric study is developed to determine leakage surfaces and fluid volume variation between the meshing gear teeth. This geometric study will also be used to predict the pressure through simplifying assumptions. Finally, the influence of the design parameters and operating conditions on pressure are presented.

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Analyse des pertes de puissance dans les transmissions par engrenages

Abstract: BOTTA-ZIMMERMANN M. (Mme) UNITE DE RECHERCHE EN GENIE CIVIL-Développement Urbain BOULAYE G.

Cited by 2 publications

References 6 publications

Preliminary numerical investigations on windage power losses generated by helical gears

Preliminary numerical investigations on windage power losses generated by helical gears

Pressure estimation of the trapped and squeezed oil between teeth spaces of spur gears

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