Browse Publications Technical Papers 2011-28-0087
2011-10-06

Effect of Positions of Front and Rear Masses in Crankshaft Design 2011-28-0087

Dynamic behavior of the crank train in diesel Engine applications largely depends on the components of its mass elastic system. Linear position of individual masses and cross sectional details of these connections governs the stiffness and mass distribution. It is often difficult for crank train designer to decide the linear positions of front and rear end masses (viz. Damper pulley and flywheel) as effect of same on dynamic behavior of crank-train is not readily known.
In this present work, a parametric model of crankshaft is built with different positions of damper and flywheel. Variation in important parameters like Main Journal stresses, Speed irregularity, Torsional amplitudes, Torsional mode is then monitored. Design of experiments (D.O.E) technique is used to find optimum position for both the masses. Also the trend of change in every parameter for all the iterations is investigated.
This paper intends to signify the effect of damper and flywheel linear position on crankshaft torsional behavior. The aim of this study is to find out a correlation and develop an adequate estimation of torsional vibrations of a damper-flywheel layout.

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