Abstract
The results of the simulation of the deformation mode in the root of the teeth of cylindrical involute gears under the action of a concentrated force are given. It is the first step in determining the bending strength of involute teeth in the case that at least some of them (those in a pinion or in a gear) have a longitudinal surface modification providing for a contact that is a point one from the theoretical point of view and local from the practical point of view. The investigations have been performed using the finite-element model developed in an ANSYS environment. Taking into account the effective (equivalent) stresses responsible for damaging the material of the teeth, the volume factor of the shape of the tooth has been reduced to a form that makes it possible to use the bending durability limits specified for ordinary (unmodified) teeth of involute gears with a theoretically linear contact, which enter the working stresses for estimating the bending resistance.
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