HIGHER ORDER KINEMATIC ANALYSIS OF LONG-DWELL MECHANISMS

This paper deals with the higher order kinematic analysis of a long-dwell mechanism, which is synthesized by applying the dead-points superposition method. In particular, a crank-rocker four-bar linkage, a centered slider-crank mechanism, an orthogonal Cardan mechanism and an offset slider-rocker mechanism, are connected in series to give a crank-driven 10-bar long dwell mechanism, which kinematic analysis is formulated for the first time, up to the sixth-order and thus, including velocity, acceleration, jerk, jounce or snap, crackle and pop. The proposed formulation was validated by significant graphical and numerical results, which show the long dwell-time of the output rocker link for a constant angular velocity of the driving crank. Other multi-link mechanisms can be assembled in different way by using the dead-points superposition method and thus, obtaining a long-dwell mechanism.