In this little example I'll resolve the magnetic field around an horseshoe permanent magnet.
Interesting, in my opinion, are the way in which the magnetization Body force is given and the mesh update in order to fast evaluate different iron position between the magnet and the ferromagnetic bar.
The mesh zip is 2.4Mb and I can not upload it.
My question is, are there a way in order to evaluate the magnetic force between the magnet and the iron bar?
Many thanks in advance, Alex
magnetostatic with mesh morphing
-
- Posts: 41
- Joined: 25 Feb 2011, 18:43
- Antispam: Yes
- Location: Italy
magnetostatic with mesh morphing
- Attachments
-
- permanentMagnet.jpg (35.88 KiB) Viewed 9655 times
-
- ferroCavallo.zip
- (955.53 KiB) Downloaded 661 times
Re: magnetostatic with mesh morphing
This looks quite nice!
The cleanest way to have total magnetic forces calculated per group of bodies is to utilize the component sections and nodal forces.
For that you need to have section like this
This will collect the total magnetic force acting on bodies k_1, k_2, ... k_n.
Also, you need to have in the MagnetoDynamicsCalcFields solver and, if you want to have the component results saved to a file, in the SaveScalars solver.
There is an example in elmer tests where you can see more here: https://github.com/ElmerCSC/elmerfem/bl ... e/case.sif
By the way, may we (as CSC - Finnish IT Center for Science) use your example in our Elmer materials?
Cheers,
Juhani
The cleanest way to have total magnetic forces calculated per group of bodies is to utilize the component sections and nodal forces.
For that you need to have section like this
Code: Select all
Component 1
master bodies(n) = k_1 k_2 ... k_n ! the id numbers of the bodies where the forces are collected
calculate magnetic force = logical true
End
Also, you need to have
Code: Select all
calculate nodal forces = true
Code: Select all
save component results = true
There is an example in elmer tests where you can see more here: https://github.com/ElmerCSC/elmerfem/bl ... e/case.sif
By the way, may we (as CSC - Finnish IT Center for Science) use your example in our Elmer materials?
Cheers,
Juhani
-
- Posts: 41
- Joined: 25 Feb 2011, 18:43
- Antispam: Yes
- Location: Italy
Re: magnetostatic with mesh morphing
Thank you for your replay. On Next Monday I'll try it. Obviously, I Think that coluld also be possible to use those Forces as loads for a subsequent structural analysis.
In order to share the case, how could I upload the mesh that is great than the size limit?
In order to share the case, how could I upload the mesh that is great than the size limit?
Re: magnetostatic with mesh morphing
Hi Alex,
You can, for example, split the zip file in two or more smaller files directly with winzip. Or decrease mesh density.
Regards,
Marco
You can, for example, split the zip file in two or more smaller files directly with winzip. Or decrease mesh density.
Regards,
Marco