Computerized Design of Face Hobbed Hypoid Gears: Tooth Surface Generation, Contact Analysis and Stress Calculation


Authors: Martino Vimercati, Politecnico di Milano and Andrea Piazza, Centro Ricerche FIAT --
While facemilled hypoid gears have been widely studied, about face hobbed ones only very few studies have
been developed. Aim of this paper is just to propose an accurate tool for computerized design of face hobbed
hypoid gears. Firstly, amathematicalmodel able to compute detailed gear tooth surface representation will be
derived; then, the obtained surfaces will be employed as input for an advanced contact solver that, using a
hybridmethod combining finite element technique with semianalytical solutions, is able to efficiently carry out
contact analysis under light and heavy loads and stress calculation of these gears.
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