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[Jan Stránský <question245072@xxxxxxxxxxxxxxxxxxxxx>]

Question #245072 on Yade changed:
https://answers.launchpad.net/yade/+question/245072

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hello,
the problem is that facets are non-dynamic bodies by default (therefore not
affected by forces). Try to use some KinematicEngine as a first attempt, if
you are successful with it, it should be possible to introduce also forces.
cheers
Jan



2014-03-06 12:46 GMT+01:00 masmoudimarwa <
question245072@xxxxxxxxxxxxxxxxxxxxx>:

> New question #245072 on Yade:
> https://answers.launchpad.net/yade/+question/245072
>
> Hello all,
> I just try to model a box partially filled with particle and i want to
> excite this box with a force or with displacement that affect the movement
> of particle.
> As a first step I model a box with one particle but my model don't make
> the box in movement .
> I have no idea where is wrong
> Thanks
> Best regards
>
> O.materials.append(FrictMat(young=30e9,density=1000,poisson=.2,frictionAngle=.5))
>
> # create rectangular box from facets
> O.bodies.append(utils.geom.facetBox((.5,.5,.5),(.5,.5,.5),wallMask=63))
> O.bodies.append([sphere([0.5,0.5,0.5],.05)])
> O.bodies[12].state.vel=(0,0,3)
>
>
>
> O.engines=[
>    ForceResetter(),
>    InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Facet_Aabb()]),
>    InteractionLoop(
>       # handle sphere+sphere and facet+sphere collisions
>       [Ig2_Sphere_Sphere_L3Geom(),Ig2_Facet_Sphere_L3Geom()],
>       [Ip2_FrictMat_FrictMat_FrictPhys()],
>       [Law2_L3Geom_FrictPhys_ElPerfPl()]
>    ),
>    GravityEngine(gravity=(0,0,-9.81)),
>    ForceEngine(ids=[0],force=(10,0,0)),
>    ForceEngine(force=(10,0,0),ids=[0]),
>    ForceEngine(force=(10,0,0),ids=[1]),
>    NewtonIntegrator(damping=0.4),
> ]
> O.dt=.5*utils.PWaveTimeStep()
>
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