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April 12, 2012, 09:09 |
Demagnetization field
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New Member
Jan
Join Date: Apr 2012
Posts: 1
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Hi,
I am quite new in ANSYS and I have a question regarding simulation of magnetic behavior of ferromagnetic material. As far as I know, in every ferromagnetic body a demagnetization field is created, when the body is magnetized. The size of the demagnetization field is shape-dependend through a demagnetization factor. Does ANSYS take this demagnetization field into acount? Does it depend on the selver option I use? I'm using the RSP method. _________________________ I attached a simulation result, where the H-field is displayed. The inner body is a ferromagnetic flat cylinder. Then there is a fine meshed air body and then another air body which is meshed more roughly. The xternal magnetic field I create with nsel,s,loc,x,-xmax D,ALL,MAG,xmax*hfield0 ! APPLY POTENTIAL TO GIVE 100 TESLA FIELD nsel,s,loc,x,xmax D,ALL,MAG,-xmax*hfield0 ! APPLY POTENTIAL TO GIVE 100 TESLA FIELD ____________________________ Am I right with my assumption, that the H-field inside the ferromagnetic body is smaller than H-field in the air because of the demagnetization field in the body? Kind regards Jan |
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