Analysis of Spur Gears by Coupling Finite and Boundary Element Methods#

Abstract

Stress and deflection analysis of spur gears are presented by coupling finite and boundary element methods. Single-tooth, three-teeth, and whole-body spur gear models are solved using finite element methods in ANSYS (a finite element package). In addition to these models, two different whole-body models are developed using a coupling program written in Fortran 95. Keyway effects are included in the whole-body and coupling models. In each model, the stresses along the critical sections and deflections of midline of loaded tooth are investigated under the action of driving force. The variations of stresses and deflections are also represented at the critical points when the driving force application point is changing between tip and pitch. The effect of keyway position on stress and deflections is also presented. The results are compared with each other and ANSYS.