Design and Analysis of Rocker ARM

Abstract

A rocker arm is a valve train component in internal combustion engines. As a rocker arm is acted on by a camshaft lobe, it pushes open either an intake or exhaust valve. This allows fuel and air to be drawn into the combustion chamber during the intake stroke or exhaust gases to be expelled during the exhaust stroke. Rocker arms were first invented in the 19th century and have changed little in function since then Improvements have been made, however, in both efficiencies of operation and construction materials.

In this paper we discussed about Rocker arm of Tata Sumo victa that was designed and analyzed to find the critical regions. CAD models of Rocker Arm were created using Pro/E and ANSYS workbench software was used for analysis of rocker arm. The CAD model was inputted in ANSYS Workbench and Equivalent Stress and Maximum Shear Stress was found. The obtained results provided by ANSYS Workbench are compared to the results.

            And also checking results with different materials with existing material and applying same boundary conditions on it and then finally we can conclude which material is can be replace with existing material.