Abstract
In this study, stress distributions in a con-rod of an engine are studied using a 3 Dimensional Computer Aided Design Software, 3D-CAD CATIA. A structural CAD model of a con-rod is made with the CATIA. A FEM structural analysis is performed in the CATIA for making a compliance matrix which expresses relation between bearing deformation and oil film pressure distribution and is used in an Elastohydrodynamic Lubrication, EHL, analysis. Pressure distributions and deformation on a con-rod bearing is calculated with the EHL analysis under a dynamic load of the engine. The pressure distributions are used for calculation of nodal forces on the bearing surface which are used in the structural analysis of the con-rod. Finally, stress distributions in the con-rod under the engine operation can be obtained.
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