yade-users team mailing list archive

[Václav Šmilauer <eudoxos@xxxxxxxx>]

>         Reading JumpChangeSe3 (wouldn't it be better to call it
>         StepChangeSe3,
>         or rather StepChange... something else?) code, positions are
>         updated "by
>         hand"
>         
>          if(!setVelocities || (setVelocities && !b->isDynamic))
>         
>         i.e. either (1st case) NewtonIntegrator will not update
>         position because
>         velocity is zero, or (2nd case) NewtonIntegrator will not
>         update
>         position because the body is not dynamic.

> I personally think this is a very basic task, so we should be able in
> Yade to run a simulation in displacement control (totally working, I
> mean). Any advice how to do that? Say that one simply wants to apply a
> displacement (fixed or whatever) at each time step being the bodies
> dynamic..

Doesn't JumpChangeSe3 do the trick? You just specify the delta and it is
applied at each step.