Optimisation of Connecting Rod Material through Finite Element Analysis (Modal Analysis)

Connecting rod is an important component of the automobile engine dynamic system, it is not only a transmission component but also moving part, at the same time it must withstand variable load such as tensile, compressive force and bending in the working process. Therefore, dynamic characteristics study on the connecting rod has become an important part of design. Modal analysis is an effective method to determine vibration mode shapes and weak parts of the complex mechanical system. In this study, a modal analysis was applied to a connecting rod by ANSYS software at critical working conditions, the main purpose of analysis is to identify the model parameters of connecting rod such as natural frequency, vibration mode shapes and provide a basis for selecting connecting rod material. In this study, modal analysis applied for three different materials of the connecting rod. In this study, modal analysis was performed to calculate natural frequencies and mode shapes. By comparing the natural frequency, select optimum connecting rod material to avoid resonance. To avoid resonance, natural frequency high.