yade-users team mailing list archive

Thread
Date

Re: [Question #403469]: How to set the damping coefficient of a crowd of powders

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Yufan Zhao <question403469@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 26 Oct 2016 00:53:35 -0000
Reply-to: question403469@xxxxxxxxxxxxxxxxxxxxx
Sender: bounces@xxxxxxxxxxxxx

Question #403469 on Yade changed:
https://answers.launchpad.net/yade/+question/403469

    Status: Answered => Open

Yufan Zhao is still having a problem:
Bruno, thank you very much.
But I don't know your meaning that there is no physical damping clearly.

"kinetic energy of particles needs to be dissipated since the energy
dissipation through friction damping during sliding may not be enough to obtain
numerical stability within a reasonable convergence time to quasi-steady state  .
Hence, a local non-viscous damping  is added as a force term"----I saw similar states in some paper that conducted simulation under the case of powder bed additive manufacturing. And they set the damping coefficient as 0.75 but without further explaination.

Maybe I didn't understand its meaning. Can you give some tips for it?

-- 
You received this question notification because your team yade-users is
an answer contact for Yade.