Single Degree of freedom systems in ABAQUS

[s_saranya]

Hi all,

I want to model a single degree of freedom systems with lumped mass (as concentrated force) at the top. I wanted to include the effects of concentrated force in modal analysis (I use Linear perturbation , frequency step)? I could not include the concentrated force in the modal step. Can anyone suggest ideas?

 

[FEA way]

Loads can’t be applied in eigenfrequency extraction analysis. But you can model the lumped mass as point mass (Engineering Features --> Inertias --> Point mass/inertia) like it’s typically done.

 

[s_saranya]

Yes. Done. Thank you.