Modelling Frequency Response Impulse Hammer Test

Hi,

I would perform an Impact Hammer Test on a panel and plot acceleration in some points of that.

I don't know if i'm right following the frequency response tutorial (i'm not sure if use modal or direct method), so i have 2 question:

1. How can i model (if possible) the load as an impulse?

2. I have the damping loss factor function the frequency of the material. How can I input this on the model?

Thanks for answering.