The Structure, Stress and Modal Analysis of 1.6-Liter Gasoline Engine Connecting Rod Based on Finite Element Analysis

Abstract

The three-dimension model of engine connecting rod based on 1.6-liter gasoline Engine was built using Solid works 2016. The stress and modal analysis of the built model were evaluated by Ansys Workbench. The results showed that the maximum tensile and compressive stress of engine connecting rod when performing of pulling and pressing force were 42.59 MPa and pressing 74.21 MPa respectively. The small end of connecting rod was an area which stress concentration. Last, a modal analysis was carried out, and the previous six order natural frequency and vibration mode were obtained. The effects of the stress and losing circle shape of the rod middle area on the working properties of the connecting rod were analyzed. After checking and calculation, this 1.6-liter gasoline engine connecting rod met the strength requirement. This study could provide theoretical evidence for the further optimization and design of engine connecting rod.