Overturn simulation. Fixing translation support in one direction

Hey there!

Im working on a simple simulation to check whether a model would overturn under its own weight. Since the body in question is has a fairly compliated form, its a little hard to calculate it by hand.

In order to simulate ther overturning I need the Tz (z translation) to be fixed only in the +z direction. In other words, fixed when a force is applied from top pointing downwards and free to move if pulled upwards. Is this a setting that can be achieved in Karamba?

Hello @r.hora,
currently (V3.1) there is no direct way in Karamba3D to achieve this kind of non-linear calculation.
As a workaround you could add short, vertical truss elements between your model and the supports. With the “Tension/Compression Eliminator”-component it is then possible to remove those truss elements which are under tension.
– Clemens

Hey Clemens,

Thanks for the quick reply.

That makes sense, will give it a shot.

Regards