Assistant Manager, Kirloskar Pneumatics Co. Ltd. Pune

The paper presents the analytical and FE modal analysis of a crankshaft. For analytical calculations, the crankshaft is considered as two rotor system to calculate the natural frequency. The three-dimensional finite element model is constructed in PRO-E. The model is meshed in ANSYS workbench. During analysis the six modes are extracted. The results show that the crankshaft is not running in critical speed. The finite element model agrees well with the analytical results and can serve as a baseline model of the crankshaft. Modal Analysis of Compressor Crankshaft