Design and Analysis of 80cc, 4-Stroke Spark Ignition Engine Connecting Rod

Abstract

In this study, the connecting rod was designed and simulated to
determine its performance under real condition of service. The
designed parameters of the connecting rod were modeled into 3-D
geometry using SOLIDWORKS software. The 3-D model was
imported into the static structure environment of the ANSYS
software. Finite element analysis was conducted to ascertain the
variation of stress magnitude at critical locations of the connecting
rod. The load boundary condition in static simulation model was
determined by the ideal gas equation. The engine specification
chart was used to get the other simulation inputs that were used.
Maximum deformation of 0.062428mm was recorded at the small
end of the connecting rod because the material thickness was
unable to support the applied force at the end of the rod. The
simulation results showed that von Mises stress present in the
aluminum alloy (2024-T361) rod was less than its yield strength
indicating that there can be material saving in the lowest stressed
region.