Author : Kishor N. Naik and Dhananjay R Dolas

Gears are one of the most basic components of any machine or mechanism. Spur gear is the most common means of transmitting power in the modern mechanical engineering world. The main objective of this research paper is to analyze the bending stresses occur on the gear tooth profile when subjected to loading condition with the help of FEM and Photo-elastic technique. Photo elastic stress analysis is a technique that provides stress distribution over an entire object/structural member of interest it is based on the property of some transparent material to exhibit colorful pattern when viewed with polarized light. These patterns occur as the result of alternation of the polarized light by the internal stresses into two waves travel at different velocities. In this work root radius are taken gear parameters, how stress redistribution are taken place by varying this parameter studied. The stresses are calculated with the help of the FEA this result are compared with the stresses calculated by Photo elastic technique. For this work parametric modeling is done using Pro-e WF 5.0 and for analysis ANSYS 12.0 workbench is used. For photo elastic validation optical polariscope is used .This work helpful to conclude effect of bending stress on gear tooth profile by variation of gear root radius it also give the comparison of FEM method with photo-elastic technique of stress analysis .

Keywords: Spur gear, stress, FEA, & Pro/E, Ansys 12.0

Article published in International Journal of Current Engineering and Technology, Vol.6, No.1 (Feb-2016)