Keywords

Gears, Power Loss, Computational Fluid Dynamics

Investigations on CFD Simulation for Predicting Windage Power Losses Generated by Helical Gears

When considering high-speed gear transmission, the power loss due to the fluid drag torque generated by the gear rotation in air/oil mist may dominate the other losses [1]. This windage power loss (WPL) must be therefore studied in order to mitigate its impact. Numerous investigations have been then made in the past experimentally [2,3,4] or numerically [5,6,7]. Some of these studies proposed WPL model in addition to the results obtained. However the influence of helix angle is not clearly understood since most of the previous studies considered spur gears. Experiments have still shown that WPL value is modified when helix angle value becomes not null.

Authors and Company/Institution

Yann Marcheese, Nicolas Voeltzel and Christophe Changenet, Université de Lyon, ECAM Lyon, Laboratoire Énergétique, Lyon, France
Fabrice Ville and Philippe Velex, Université de Lyon, INSA de Lyon, LaMCoS, Villeurbanne, France