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.