Development of a quasi-analytical model to predict the windage power losses of a spiral bevel gear
TRIBOLOGY INTERNATIONAL(2020)
Abstract
Windage effects becomes prevailing in high speed areo-engine applications. The present paper is to provide some theoretical findings to predict the windage power loss for spiral bevel gears. Firstly, a quasi-analytical model detailing the flow pattern surrounding the spiral bevel gear including the toe, heel and gear teeth. Then, the developed physical model achieves good results in comparison with sets of experimental findings and the quasi-analytical formulas applied to predict windage power loss for spiral bevel gears under high-speed condition are set up. Finally, the influence of the specific role, such as pitch cone angle and spiral angle, on the windage power losses of the bevel gear is examined by calculating the theoretical model.
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Key words
Windage power loss,Spiral bevel gear,Quasi-analytical model,Pitch cone angle,Spiral angle
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