Analysis of engine flywheel wobbling vibration

Paper #:
  • 2017-01-1023

Published:
  • 2017-03-28
Abstract:
Large axial displacement at the edge of a flywheel caused a clutch fail to disengage in high-speed rotation. To find out the root cause and solve the problem, 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 baseline model was correlated with measurement. A comprehensive study was conducted for a set of flywheel and crankshaft models with different materials and unbalance masses. The contribution to flywheel wobbling of each vibration order was carefully investigated, and an optimal design was presented.
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