yade-users team mailing list archive

[Ryota Nakanishi <question670154@xxxxxxxxxxxxxxxxxxxxx>]

Question #670154 on Yade changed:
https://answers.launchpad.net/yade/+question/670154

    Status: Needs information => Open

Ryota Nakanishi gave more information on the question:
Hi Jan,

Thank you for your reply!

Actually, I tried to apply force with Yade's O.forces.addF().
However, no force was applied to tire made by FEM mesh.

I think it is because the dem-fem coupling program get forces from DEM
with
O.interactions[id1,id2].phys.normalForce+O.interactions[id1,id2].phys.shearForce
(, which is in OofemYadeMeshSurfaceMap::getForcesFromDem() of
demfemcoupling.py).

O.forces.addF() does not affect O.interactions[id1,id2].phys.normalForce
or shearForce, so I am trying to modify getForcesFromDem().

Then I apply additional force to rotate tire and represent external load and airpressure.
I am trying to run the program but controlling the additional force to rotate the tire with constant angular velocity is difficult.
I also tried to apply forced displacement on the wheel of the tire, but I was unable to do.

> I will have a look. Is the tire loaded by a car? Then I think the dead
weight does not make much sense and an external load to its center
should do the job.

Exactly.
I think that concerning the dead weight of tire will make the analysis more accurate, but the tire is loaded by an external load and the dead weight is not indispensable.

> Please describe here or send me email describing more in detail what
you want to simulate, I will try to add a basic version of it

Thank you for your proposal!
I will send you email to describe the simulation more in detail.


Thanks a lot,
Ryota

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