Paper Details

This work aims to develop an analytical method of designing a fully assembled crankshaft for automotiveapplication. The design will incorporate innovative octahedral fixture of the main journal shafts to the webs. This distinctfeature of the design will basically improve the fatigue life of the design since most fatigue failures of assembled crankshaftsoccur at this region due to alternating slip-fret.Theories and formulas deduced in the analysis will be illustrated in the designof a crankshaft for a 1.2 litre horizontally opposed 4 cylinder spark ignition engine as charging power plant of a hybridvehicle. The analytical method will evaluated the nominal sizes and dimensions based on stress analysis of the crankshaftconfiguration. Also analytically, the fatigue analysis will be performed to ensure that the part survives cyclic fluctuatingstresses during service for infinite life of operation. Since the part will be subjected to high cycle of operation, the stress-lifemethod of fatigue analysis will be adopted.For validation of the deduced analytical method, a finite element analysis of thesolid modelled part will be computer-simulated with ANSYS workbench software. Then the results of the analytical methodwill be compared with that of FEA for conformity and agreement.The design and development of this innovation segmentedcrankshaft for the charging power unit of a hybrid vehicle will play a vital role in the green transition.

NODILIM EZEBUILO, SOHAIL SIDDIQI, “DESIGN OF A FULLY ASSEMBLED CRANKSHAFT FOR A 1.2 LITER HORIZONTALLY OPPOSED 4 CYLINDER S.I. ENGINECHUKWUDI”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 5, Issue 4, pp. 936-945, April 2018.