Tooth contact analysis of straight bevel gears in the function of the modification of number of teeth of the driving gear

The bevel gear is widely used in mechanical structures if we want to change the shaft positions, the transmission ratio and the rotation direction. The aim of the publication is the analysis of the TCA (Tooth Contact Analysis) parameters in the function of the modification of the number of teeth of the driving gear. This analysis is actually a finite element analysis with which the developing normal stress, normal strain and normal deformations could be determined on the contact zone of the gear pairs. This analysis is important for the purpose of the judgement of the goodness of the gear drive. Previously the exact CAD (Computer Aided Designing) modelling of the tested gear drive is needed and after that the exact assembly is necessary. In this publication, we want to determine the correlations among the TCA parameters and the number of teeth of the driven gear.