Methodology for Structural Calculation of Gear Teeth with Unconventional Profile

Andrea Chiaramonte Radicella,Vincenzo La Battaglia,Stefano Marini,Giulio Di Francesco

doi:10.1051/matecconf/20165101006

Andrea Chiaramonte Radicella, Vincenzo La Battaglia + Show 2 more

Open Access

https://doi.org/10.1051/matecconf/20165101006

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Abstract

After having made reference to the structural analysis used in the study of gear wheel teeth, we then move on to the state of the art on the topic. We proceed to identify the boundary conditions used in the structural analysis of unconventional teeth with sides having a profile of an involute of a circle but with different pressure angles in each of the two sides. A procedure for the discretization of traditional teeth and of innovative teeth is presented and compared with the discretization obtained using current software.

Highlights

The importance of analyzing further the structural characteristics of said tooth and, in particular, of identifying a method for automatically subdividing the structure into elements beforehand [6] [7]
We proceed to identify the boundary conditions used in the structural analysis of unconventional teeth with sides having a profile of an involute of a circle but with different pressure angles in each of the two sides
Based on the foregoing considerations, it is necessary to propose a type of discretization that can be used in the subsequent stage of structural analysis of the tooth; to that end, the area of the tooth to be discretized needs to be delimited

Summary

General details

Gear wheels with teeth having sides with different pressure angles are explored further given their advantages, especially in some applications, over traditional teeth [1] [2]. The importance of analyzing further the structural characteristics of said tooth and, in particular, of identifying a method for automatically subdividing the structure into elements beforehand [6] [7]. We deal with the issue of the Finite Elements Method mesh of the structure of the tooth having two sides with different involutes. Contact conditions between active flanks (right for wheel 2 in Fig. 1) are the same we have in traditional teeth

Current state of the art

Delimiting the tooth area to be discretized

Discretization of traditional teeth

Discretization of innovative teeth

Conclusions