Ah, I see. No problem.

Create a Rigid body. Use a Fixed Joint to connect the beam to the rigid body.  Put the Translational Joint on the rigid body. Use Contact between the vertex and the face of the rigid body.

The base is doing a 5 mm amplitude sinusoidal base displacement at about 30 Hz.

Here is the tip response relative to the base in red (left axis) and the size of the contact gap in green (right axis).
You can see that after 1 second, a steady state has almost developed.

Attached is an ANSYS 2020 R1 archive.