Abstract—Crankshaft is one of the most important parts in internal combustion engine, which converts the reciprocating displacement of the piston to a rotary motion with a four link mechanism.The objective of this paper was to suggest the optimum design parameter of the existing crankshaft by changing the design variables like journal diameter, crankpin diameter, fillets and counterweights etc. Here crankshaft of a four cylinder diesel engine was taken as case study. In the present paper, model of crankshaft was designed in the ANSYS Workbench and then Finite Element Analysis was carried out under the same loading conditions. Here, static analysis was done to find the maximum deformation and maximum stress point. Apart from this strain, shear stress and total deformation contours are also plotted. The results obtained are compared with the existing results and the crankshaft with optimum design was selected.

Index Terms—Internal combustion engine, Finite element method, crankshaft analysis, ANSYS Workbench

Cite: Ravi Kumar Goel, Harshwadhan Sharma, and Annima Panwar, "Stress Analysis and Optimization of Crank Shaft Using CAE Tools," International Journal of Mechanical Engineering and Robotics Research, Special Issue, Vol. 1, No. 1, pp. 78-81, January 2014.