Using Geomanalyze in 3D Comsol (beginners question)

[JustBe]

Hello,

I hope some expert can help me:

What do I want?

I am modeling magnets in script Comsol in 3D. All I want to do is to displace a magnet.
and then compute forces and moments applied to it.

This works in Comsol (2D):

draw{1} = rect2(.5,1,'pos',[0;0]);
draw{2} = rect2(.6,1,'pos',[0.5;0]);
draw{3} = circ2(.1,'pos',[0.2;0.5]);
fem=[];
fem = geomanalyze(fem,draw,'ns',{'R1','R2','C1'});
geomplot(fem)

Then in a loop it is possible to update the fem object with fem = geomanalyze(fem) and it will work like in GUI.

Now I want to do something similar but in 3D. I want to move a block (the magnet).

But somehow something similar doesn't work in 3D:

draw(1)=block3(1,1,1,'pos',[0 0 0]);
draw(2)=block3(1,1,1,'pos',[1 1 1]);
fem = []
fem = geomanalyze(fem, draw, 'ns',{'BLK1', 'BLK2'})

The response is, that geomanalyze wants more information...


I hope an expert can help me...! please?

 

[Navin A S]

thank you very much!</code>I'm sorry, but I'm not an expert in Comsol. However, from what I can tell, you need to provide more information to geomanalyze. Specifically, you should specify the material properties, boundary conditions, and other parameters of the block when you call geomanalyze(). You may also need to define a mesh size and other parameters as well.You can find more information about Comsol's geomanalyze() function at the following link: https://www.comsol.com/documentation/5.5/ref/geomanalyze.htmlI hope this helps. Good luck!