damping

[olfaksentini]

hi
how can i introduce damping in a dynamic study with abaqus
i tried to introduce a damping in material propreties but the response is always ninusoidal but i think that it should be equal to zero at the end of the step


can you explain please how can i do a dinamic study
and a dinamic modal study

when i do a dinamic modal study i find results equal to zero


thanks

 

[izax1]

What kind of damping do you want to analyze? Are you calculating with modal damping in the frequency domain? When you are expecting zero at the end of the step, I guess you are not talking frequency domain. It would help if you could explain what you are after.

 

[olfaksentini]

i want to introduce a damping in a dynamic implicit analysis but i didn't know how can i introduce it. because iwant to introduce a sinusoidal excitation so the response shoud have two regime a transitory one and a permenant one then it shoud be equal to zero if i introduce damping.

so my question are the following

how can i introduce a damping in a dynamic implicit analysis ?

how can i introduce a sinusoidal excitation ?

i'm studing a problem which friction how can i see the stick and slip regimes?

how can i plot curves of the displacement function to the time


thanks

 

[IRstuff]

There is a perfectly usable Abaqus forum on this site: forum799

TTFN
faq731-376