IRJET - Optimization of Crankshaft by Modification in Design and Material

This document summarizes an analysis and optimization of a crankshaft design for a 4-cylinder inline gasoline engine. A 3D model of the crankshaft was created in Siemens NX software based on engine specifications. Finite element analysis was performed in ANSYS to evaluate stresses and deformation. The analysis showed maximum von Mises stress of 223.76 MPa and shear stress of 127.31 MPa, both at joints between the crankshaft spindle and web. Total deformation was a minimal 0.14091 mm. The safety factor of 1.5195 indicated the design would withstand fatigue loading over an infinite lifespan. Modifications like added fillets helped reduce stresses by distributing loads more evenly. The optimized