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Torsional Vibration Characteristics of a Crankshaft with a Rubber Damper
Technical Paper
891232
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Language:
English
Abstract
The crankshaft torsional vibration angle is measured from a running engine, using a toothed wheel attached to the front of crankshaft. The torsional vibration stress near the node of torsional vibration is also measured by using strain gages mounted on the journal of crankshaft in a running engine. A theoretical analysis of torsional vibration of crankshaft is performed with a simplified model subject to the excitation torque. The comparison between the theoretical and experimental results shows that the idealized approach is applicable to predict the torsional vibration of crankshaft. It is found that the torsional vibration of crankshaft is mainly dependent upon the characteristics of rubber damper, i.e., the stiffness and damping coefficient of rubber, and the inertia of damper ring. It is recognized that the rubber damper should be carefully selected considering the variation in the dynamic characteristics of rubber.
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Authors
Citation
Yeo, S., Kang, K., and Han, C., "Torsional Vibration Characteristics of a Crankshaft with a Rubber Damper," SAE Technical Paper 891232, 1989.Also In
References
- B.I.C.E.R.A. “A Handbook on Torsional Viration” Cambridge Univ. Press 1958
- Wilson W. Ker “Practical Solution of Torsional Vibration Problems” 1963
- Wakabayashi K. et al “A Simulation Method for the Torsional Vibration Waveform of a Crankshaft with a Rubber Damper” IMechE 1979 C119 79
- Kreuter P. Pischinger F. “Status of Rules and Methods for Assessment of Stresses in Crankshafts of I.C. Engines” SAE 851197
- Kang K.T. Han C.S. Yeo S.D. “A Study on the Torsional Vibration Characteristics of Crankshaft” KSAE 10 5 1988
- Park Y.S. Park J.Y. Lee C.W. “Dynamic Torsional and Bending Stress Measurement from Operating Crankshaft” SAE 860232
- Kabele D.F. “A New Approch in the Simulation of Crankshaft Torsional Vibration Problems” IMechE 1984 C140 84