The dynamic behavior of a flexible beam that is pulled into an opening in an elastic wall with a constant velocity is studied using a mechanical model and experiments. We focus particularly on the effects of the tapered guide that is provided in front of the inlet of the wall gap on the beam behavior. We developed a finite-segment-based model for flexibility of the beam, and the nonlinear spring and damper are introduced for representing the stiffness of the inlet of the elastic wall gap and the tapered guide. Experimental investigations are conducted with FRP thin beam as the Spaghetti, and compared their results with numerical simulation results. As the results of simulation and experiment, the effects of the tapered guide angle guide length and the pulling velocity on oscillation mechanism of the Spaghetti are discussed.

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