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Design, Optimization & Fatigue Life Estimation of Diesel Engine Piston

Author(s):

Shishir S Fakiragouda , Student - M.Tech - 4th Semester, Vijaya Vittala Institute of Technology. Bangalore; Vishwanatha KH, Assitent Professor / VVIT Bangalore

Keywords:

Stresses, Deformation, Finite element method, Fatigue life, I.C Engine

Abstract

Engine pistons are one of the most complex components among all automotive and other industry field components. The engine can be called the heart of a vehicle and the piston may be considered the most important part of an engine. There are lots of research works proposing, for engine pistons, new geometries, materials and manufacturing techniques and this evolution has undergone with a continuous improvement over the last decades and required thorough examination of the smallest details. Notwithstanding all these studies, there are a huge number of damaged pistons. Damage mechanisms have different origins and are mainly wear, temperature, and fatigue related & cannot be repaired easily. The fatigue related piston damages play a dominant role mainly due to thermal and mechanical fatigue, either at room or at high temperature. The paper describes the Design, Optimization (in terms of Stress & Weight Reduction) and Fatigue Life Estimation of four stroke diesel engine piston. The main objective is to investigate the Stress Distribution, Temperature Variation, deformation & Fatigue Life estimation. In this work the FEA technique to predict the higher stress and critical region on the component. The optimization will be carried out to reduce the stress concentration on the piston using ANSYS. Fatigue life of the piston will be predicted using constant amplitude S-N data for the material used.

Other Details

Paper ID: IJSRDV2I3589
Published in: Volume : 2, Issue : 3
Publication Date: 01/06/2014
Page(s): 1501-1505

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