Abstract
Tooth contact pattern or tooth bearing pattern is the most common criterion used to check the state of gears in a gear box or on a meshing frame. From that pattern, ar. experienced gear engineer can determine, whether the manufacturing and/or the assembling of gears has realized the specified geometrical accuracy of gears and gear box. However, this technique of evaluating tooth contact pattern remains as pure empirical know-how of an experienced engineer. To realize this technique as an engineering method to be transfered easily to other engineers, a practical algorithm to generate the composite form deviation of mating tooth flanks defined on the plane of action, referred to as "composite error surface", as a function of tooth contact pattern of the gear set is proposed in this report. Upon combining this method with a simulation program to calculate the stresses induced in gears as a function of composite error surface, the prediction of gear performance as a function of tooth contact pattern becomes possible.
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