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could please tell su more about which version do you have ?
did you defined the direction of the magnetisation for the magnet ?
After define the Remanence of the magnet you have to define the magnetisation.
Thanks for your reply.
I used Cosmos EMS for solidworks 2008 sp0.0.
I first created a extruded body as the permanent magnetic bar, then a big extruded body with a cut fitting the bar as the surrounding air assembled with it.
After applying the material to the permanent magnetic bar and the air, I defined the direction of the magnetisation for the bar, then the normal flux boundary condition and the mesh of both the bodys was created.
I can plot 2D result, but can not 3D. I don't know why.
Need I define the remanence of the magnet of the permanent magnetic?? I think it should only be a important parameter for iron material.