Crankshaft plays a vital role to transform reciprocating motion into rotary motion. The design and analysis of the crankshaft is very important to improve the performance of I.C. Engine. In general the crankshaft is subjected to different pressure loads with respect to crank angle, therefore design and analysis of the crankshaft is important to increase the life of the four stroke engine. The main objective of this paper is to increase the life of the crankshaft of four stroke diesel engine by changing the main bearing diameter and crank web height in the existing design. The design was done by using CATIA software and analysis was done by using ANSYS. Two types of analysis, i.e. modal analysis and fatigue analysis have been carried out.

Topics
Computer software, Combustion engine, Crankshafts, Modal analysis
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