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Ignoring different parts of a geometry for different physics
Posted Oct 12, 2015, 3:17 a.m. EDT Low-Frequency Electromagnetics, Structural Mechanics Version 5.1 0 Replies
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The magnetic field generated by the permanent magnets and coils is solved in a static magnetic model (Magnetic fields (mf)).
The resulting Lorentz force on the coils is imported as a body load in the mechanical model (Solid Mechanics (solid)).
Now comes the problem: the mechanical support structure is non-magnetic, and has a detailed geometry. Meshing the support structure for the magnetic problem will result in too many mesh elements.
I can deselect the support structure in the magtnetic fields physics, but then the boundary condition of the support structure is set to "magnetic insulation", which results in wrong results for the calculated field.
What I would prefer to do is solve the magnetic fields for a model without the mechanical structure, and include the body load in the full motor with mechanical structure.
Does anyone of you have any experience with this?
I have attached a sample problem. Is it possible in that sample to solve the magnetic fields for only the coil and magnet, and solve the mechanical deformation for only the coil and support?
Attachments:
Hello Bart de Bruyn
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