The Effect of Addendum Factor on Contact Ratio Factor and Contact Stress for Spur Gears

Abstract

This work is about analyzing the effect of changing the addendum factor on contact ratio factor and contact stress generated on zone action of spur gear teeth during meshing. In this paper, three values of addendum factor were considered: 1, 1.15 and 1.25, for each the contact stress was calculated according to ISO formula and compared with the results obtained from finite element method. To come up with the results, the 3D model was generated and assembled in SolidWorks software, using involute spur gear model, then treated for stress analysis on ANSYS Workbench (FEM).