Analysis of Engine Flywheel Wobbling Vibration
Published March 28, 2017 by SAE International in United States
Annotation of this paper is available
Large axial displacement at the edge of a flywheel causes a clutch to fail to disengage in high-speed rotation. To find out the root cause, a numerical procedure is proposed to investigate the vibration source and to understand dynamic behavior of the crank-train system. A simulation of the whole engine system including block, crankshaft, piston, and connecting rod was performed with AVL/Excite. The resulting CAE baseline model had good correlation with measurements. A comprehensive study was conducted for a set of flywheel and crankshaft models with different materials and unbalanced masses. The contribution to flywheel wobbling of each vibration order was carefully investigated, and an optimal design was presented.
CitationJiang, Y., Hsieh, C., Festag, G., Ahmed, M. et al., "Analysis of Engine Flywheel Wobbling Vibration," SAE Technical Paper 2017-01-1023, 2017, https://doi.org/10.4271/2017-01-1023.
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