Torsional Vibration Analysis of Crank Train and Design of Damper for High Power Diesel Engines Used in AFV

Abstract

This paper analysed the torsional vibration of a 12-cylinder V-engine used for tracked vehicles and design of a suitable damper to reduce the amplitude of vibration. The entire engine crank train was modelled analytically, and mass properties are calculated using CREO software. The crank train was analysed using ABAQUS software for calculating the natural frequency of the engine. The results of the analysis were compared and validated using Holzer’s method. Suitable damper characteristics were designed using ABAQUS and MATLAB software to reduce the amplitude of vibration. Physical dimensions such as damper inertia, damper size, damping ratio and damping coefficient of the damping medium were determined to achieve the designed damper characteristics.