Analysis of Engine Flywheel Wobbling Vibration

Paper #:
  • 2017-01-1023

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-1023
Citation:
Jiang, Y., Hsieh, C., Festag, G., Ahmed, M. et al., "Analysis of Engine Flywheel Wobbling Vibration," SAE Technical Paper 2017-01-1023, 2017, doi:10.4271/2017-01-1023.
Pages:
5
Abstract:
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.
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