Abstract

This paper deals with the paper handling problems in highspeed labor saving machines. Non-linear finite element analyses are done for a lightweight and flexible plate or beam leaping from a sliding constraint and colliding against a rigid wall. The fluid force of air and the paper elasticity are taken into account. The elastic property of paper is identified by comparing the “self-bending test” and the finite element analysis. The effect of geometrical stiffness with an initial deformation is studied. The change of the flying orbit is shown with flat paper and geometrically stiffened paper. The behavior of paper after colliding against a rigid wall is also simulated with the parameters of the paper velocity and the friction coefficient between the paper and the wall. The simulation results agree well with the designers’ experiences and help the designers design new machines with higher speed.

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