Static Analysis of Crankcase and Crankshaft of Single Cylinder Four Stroke Diesel Engine

Abstract

A live case study of premature failure of crankcase is selected as per the requirement of user. It is observed that crankcase fails when operating at its nominal speed of 2600 rpm. Further investigation of crankcase pointed out that the crack has appeared at one of its tap hole on the flywheel end. This paper focuses on critical survey of literature and thereby use of methodologies to find out the critical area through static analysis. As the case referred by the user, the area where crack is initiated at operating condition is critically examined and then static analysis was performed to check the area critically. The analysis result validates the point of high stress where the crack was initiated. After viewing the results, modifications were suggested in the crankcase, so as to eliminate the susceptibility of crack initiation and propagation. Analysis of crankshaft has also been performed and its analysis proves to be safe in the given working conditions.