Abstract
This paper shows the prediction of coefficient of friction and load dependent loss factor for spur gear drives with asymmetric tooth. An accurate evaluation of gear loss factor is important to exactly calculate the power loss and the corresponding mechanical efficiency of the asymmetric spur gear drive. In the present investigative research work, a formulation to accurately estimate the gear loss factor on asymmetric gear has been developed. The tooth load and the corresponding contact stress that develops at the symmetric and asymmetric gear contact surfaces are also evaluated through finite element method in order to deduce the friction coefficient and loss factor. The suitability of three distinct models is studied and compared in this paper. The asymmetric gear pair is analyzed and the loss factor is predicted for influence over the major drive parameters. It is revealed that the approach employed facilitate substantial enhancement in the efficiency which is confined by the detailed parametric study.
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