Fatigue is the primary cause of failure of crankshafts in internal combustion engines. The cyclic loading conditions and the stress concentrations in the crank pin fillets are unavoidable, and can result in fatigue failure. The objectives of this study were to compare the fatigue behavior of forged steel and ductile iron crankshafts from a one-cylinder engine as well as to determine if the fati...

The reliability of any mechanical system, in which the linear displacement of a piston is converted into the rotation of a power transmission shaft, strongly depends on the reliability of the crankshaft. The crankshaft is the critical component and any damage occurring to the crankshaft may put the mechanical system out of order. The numerical finite element simulation of crankshafts with multi...

To transmit the revolutions of crankshafts to camshafts and auxiliary mechanisms, ordinary automotive engines are equipped with engine components such as timing belts, timing chains and accessory drive belts. Recently, as automotive engine performance is being greatly enhanced, the requirements for their components have become increasingly demanding. In this context, autotensioners play an impo...

The article focuses on studying the crankshaft as an essential part of marine internal combustion engine. Typical defects crankshafts diesel engines are considered. loads causing curvature a axis under operating conditions indicated. causes and nature violation shaft geometry determined. statistical assessment in cases axle warping during operation is found necessary. recommendations Russian Ma...

Crankshafts are the most important loaded components in the case of an automobile. In order to achieve required mechanical properties most of crankshafts for automobile are forged with micro alloyed steel. Usually, the shapes of crankshafts are complex, and many defects are induced during the process of crankshaft forging such as under-filling, laps and folds etc. In this work the forging analy...