Effect of inertia variation due to reciprocating parts and connecting rod on coupled free vibration of crankshaft

Rajendran, S and Narasimhan, MV (1997) Effect of inertia variation due to reciprocating parts and connecting rod on coupled free vibration of crankshaft. In: Journal of Engineering for Gas Turbines and Power, 119 (1). pp. 257-263.

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Abstract

The inertia due to reciprocating parts and connecting rods, as felt by the crankshaft, varies with the crank angle. The effect of inertia variation on torsional free vibration of crankshafts has been studied extensively. In this paper, the effect on combined torsional and bending free vibrations is examined. Single-cylinder engine crankshaft geometry is considered for the study. The results indicate that the inertial coupling, introduced by the reciprocating parts and connecting rod, significantly influences the free vibration characteristics, particularly when the natural frequencies of the crankskahft are closely spaced. The results suggest that, under such conditions, modeling the crankshaft as a pure torsional system would involve considerable error.

Item Type:	Journal Article
Publication:	Journal of Engineering for Gas Turbines and Power
Publisher:	ASME(American Society of Mechanical Engineers)
Additional Information:	Copyright of this article belongs ASME(American Society of Mechanical Engineers).
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	03 Jun 2009 04:35
Last Modified:	19 Sep 2010 05:25
URI:	http://eprints.iisc.ac.in/id/eprint/18894

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