Finite Element Analysis of Helical Gear

Abstract

The gears mostly fail due tobending and surface stresses on gear tooth. This paper
investigates the characteristics of a pair of helical gear system, bending stresses, in the gear
mesh. Gear plays a major role in power transmission in mechanical systems. In this
paperfinite element analysis has been performed to evaluate bending stresses in the root of
gear tooth having involute profile. Parametric studies have been conducted by considering
different helical angle and two different materials. In analytical method, the bending equation
by AGMA (American gear manufacturers association) is used to calculate bending stress on
gear.It is important to develop appropriate models of contact element and to get equivalent
result using numerical approach and compare the result with standard AGMA stress. The
variation of the bending stresses at the root of the teeth of helical gear with respect to
different helix angle has been analyzed.