Abstract
A simplified dynamic model of a passenger car automatic transmission is developed for simulating transient vibration in gearshifts. A finite element method is proposed for presenting the transient dynamics of the parametric system. The element matrices are developed using variable speed rations and the global stiffness and damping matrices are then formulated corresponding to the defined global coordinate vectors. Free vibration analysis and the transient 2-3 upshift simulation are discussed and the results are presented.
