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A Disk Magnet inside a Ring Magnet
Posted Mar 9, 2012, 1:01 p.m. EST Low-Frequency Electromagnetics Version 4.2 1 Reply
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Hi Everybody,
I have two permanent magnets, one is a disk magnet that has a 8mm diameter, and in the middle of the second magnet, which is a ring magnet that has an inner diameter of 16mm and an outer diameter of 25mm.
What I would like to do is to get numerical data, using Maxwell's stress tensor, of the net force on the disk magnet,
when have it centered, and also when I move it off center and plot a graph of net magnetic force Vs. position from
the center.
I would expect the net force exerted on the centered disk magnet, to be zero, due to symmetry, but they are not.
Can someone check my model and tell me where I am making my mistakes?
I have two permanent magnets, one is a disk magnet that has a 8mm diameter, and in the middle of the second magnet, which is a ring magnet that has an inner diameter of 16mm and an outer diameter of 25mm.
What I would like to do is to get numerical data, using Maxwell's stress tensor, of the net force on the disk magnet,
when have it centered, and also when I move it off center and plot a graph of net magnetic force Vs. position from
the center.
I would expect the net force exerted on the centered disk magnet, to be zero, due to symmetry, but they are not.
Can someone check my model and tell me where I am making my mistakes?
1 Reply Last Post Mar 9, 2012, 1:25 p.m. EST
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Posted:
1 decade ago
the model attached
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