the structure in question is a fixed-free beam. I apply a pulse called Ricker (figure 1) of displacement at the fixed end of a beam. The expected path of the impulse is that a wave reflection occurs, but this does not happen in the time history (figure 2).
Figure 1. Impulse
Time history in the middle of the beam:
Figure 2. Time history (ANSYS)
I do not understand why the impulse disappears quickly. I'm using the controlled damping (0,005) of ANSYS, I'm late, I got some help.