A Study on the Fatigue Analysis of Heavy Duty Diesel Engine

Abstract

The heavy duty diesel engine must have a large output for maintaining excellent mobility. The compacted graphite iron (CGI) is a material currently under study for the engine demanded for high torque, durability and stiffness. In this study, structural analysis of heavy duty engine was carried out with ABAQUS, and the fatigue analysis was executed with FEMFAT using the result of structural analysis. We considered about three loading condition; pre-fit load, assembly load, gas load. Safety factors were investigated by assuming the engine was operated until 2 · 106 cycles with cyclic gas loading condition.