BENDING STRESS AND THERMAL ANALYSIS OF SPUR GEARBY USING FEM

Abstract

Gear is the one of the important machine element in the mechanical power transmission system. Spur gear is most basic gear used to transmit power between parallel shafts. Spur gear generally fails by bending failure or contact failure. This paper deals with the bending stress calculation of spur gear theoretically and validating it with ANSYS software. These meshed gears from the gear box are subjected to considerable damage throughout its life span due to dynamic excitations caused by terrain undulations, the rotating wheel and track assemblies. The friction between two rolling gears results in generation of heat. Due to this heat generation gears goes into plastic state and gets deformed well before its ultimate tensile strength. The sequence followed is first drafting of spur gear on SOLIDWORKS. Next step is Static structural analysis which determines the bending stress generated in spur gear using FEA software ANSYS. The present work deals with the calculation of static analysis, and thermal analysis of gear by using ANSYS software. In a nutshell this paper explicitly deals with spur gear meshing theoretical calculation after drafting it and validated it by using ANSYS software. The practical implication of this paper is significant as the gear train is a major driver in power transmission systems.