1. I noticed that when I first ran Modal, the Frictionless Support did not behave properly. Is that what you saw when you ran Modal? I deleted the Frictionless Support and put in a Displacement BC with just one DOF set to 0 and the others Free.

Thank you sir! I will try!

  1. Apply an acceleration time history of say 50 seconds that causes the part to hit each end 25 times and let the simulation run for many weeks.

Thank you, the task in this setting is clear. I have an idea, I will try to ask the task using force and displacement 50 times