VOL. 11, NO. 9, MAY 2016 ISSN 1819-6608 ARPN Journal of Engineering and Applied Sciences © 2006-2016 Asian Research Publishing Network (ARPN). All rights reserved. www.arpnjournals.com 5996 FINITE ELEMENT ANALYSIS OF A SHAFT SUBJECTED TO A LOAD K. Sathishkumar and N. Ugesh Department of Mechanical Engineeering, United Institute of Technology, Coimbatore, India E-Mail: sathishkuppuraj@gmail.com ABSTRACT The project is mainly concentrated about the analysis of a shaft with the help of a ANSYS software under workbench. In this the shaft is taken from the head stock of the lathe machine. In this analysis the shaft is connected with bearing and gear. This is the major important component to be taken into account while designing. The objective is to build a model and assemble the part files and to analyze the various stress and deformation. The part files and assembly are done by using CREO software and the analyzing are done by using a ANSYS software. The static analysis is used to analyze the stress and deformation of the shaft when it is subjected to a particular load and the modal analyze is executed to govern the vibration features (mode shapes and natural frequencies) of shaft. The results obtained by the stress analysis is found to be good agreement and modal analysis i.e., vibration characteristic like frequency and mode shapes are presented are within the limit Keywords: shaft, bearing, gear and pinion, static stress analysis, FEA, CREO, modal analysis, natural frequency, mode shapes. 1. INTRODUCTION The shaft is one of the major components in the power transmitting system. In head stock shaft plays a major role in the transmitting power to the spindle, The shaft assembly has a ball bearing and gear parts in it so it leads to some of a stresses induced with itself it produces some amount of deviation of a shaft. Due to the stresses induced in the gears and shaft it leads to failure or reduce of a life of the shaft 1.1 Objective of the work  Build a model of a shaft assembly.  To carry a static analysis using ANSYS WORKBENCH for analyzing the load effect on the shaft. FEM enables to find critical location and quantitative analysis of the stress distribution and deformed shapes under the loads  To carry out their modal analysis i.e., natural frequencies and the mode shapes. 2. MODELING AND FINITE ELEMENT ANALYSIS OF A SHAFT The 3-D solid model of the shaft and its component was built using CREO software. A sys workbench so used for pre-processing, solving and post processing. Material property of the shaft assembly is coincided as structural steel for shaft were selected from ANSYS metal library. Boundary conditions are applied to the shaft and the finite element model is used to calculate the stress, deformation, and also the frequency and mode shapes in the shat assembly using ANSYS software. 2.1 Parts of a model The various parts in the assembly are, i. Shaft ii. Ball bearing iii. Gear iv. Pinion Shaft A shaft is a part that is used to transmit a power from one drive to other drive. In machining tools, a spindle is a rotating axis of the machine, which often has a shaft at its heart. In our the shaft is made up of a steel material with 50mm diameter and a length of a 750mm Ball bearing A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial load. As one of the bearing races rotates it causes the ball to rotate as well. Because the balls are rolling they have a much lower coefficient of friction that if two flat surfaces were sliding against each other. In this the project the bearing diameter is 80 diameter for outer and 50 for inner diameter for this I taken the deep grove ball bearing of SKF6010 Gear and Pinion A Gear or cog wheel is a rotating machine part having cut teeth, or cogs, which mesh with another part to transmit torque, in most of the cases with teeth on the one gear being of identical shape, and often and also with the shape of the other gear. The most common situation is for a gear to mesh with another gear; however a gear can also