The way to control the direction of geometry

Raheem Sterling_22160

Hi

I want to add the force controller to each geometry as figure shows. The force direction is shown as the arrow only in xy plane, from the CoM of geometry to (0,0,0). So, I decomposed the force to x and y direction and input in EDEM 

Furthermore, I want to constrain the motion direction of geometry only along the arrow to, I guess I also need to calculate the vector in x and y direction and input to the "constrain motion direction-2D".

Are there any simple ways to add the value and direction directly?

 

Stephen Cole

Hi Raheem,

I would say the approach you outline is the simplest.  The alternative would be to use the Coupling Interface to write a force controller program.  For a few geometries it would be easier to do it manually but if you ended up with 100's then best to write your own model for it.

 

We have some coupling examples like https://community.altair.com/community/en/edem-coupling-interface-applying-pressure-to-a-geometry?id=kb_article&sysparm_article=KB0121935

 

Regards

Stephen

Raheem Sterling_22160

Stephen Cole_21117 said:

Hi Raheem,

I would say the approach you outline is the simplest.  The alternative would be to use the Coupling Interface to write a force controller program.  For a few geometries it would be easier to do it manually but if you ended up with 100's then best to write your own model for it.

 

We have some coupling examples like https://community.altair.com/community/en/edem-coupling-interface-applying-pressure-to-a-geometry?id=kb_article&sysparm_article=KB0121935

 

Regards

Stephen

Hi, Stephen,

Thank you very much, may be MBD is much more suitable for me.

But according to my previous experience, when using MBD, there is no way to pause and recalculate. That's why I don't want use it.

Regards!

Raheem