Re: [femm] simple femm, feed back appreciated.

[Keith Gregory <k.gregory@xxxxxxxxxxx>]

John,

A few points:

You have no boundary conditions set. The boundary is a bit close to the 
problem if it was intended to be open. The mesh density set inside the 
magnets was a bit fine and the density outside the magnets a bit course for 
what you are trying to do.

I have modified your file using the Kelvin Transformation type of open 
boundary and made the mesh densities the same inside and outside the 
magnets. If you compare this to your original I think you will see the 
difference.

Keith.

At 07:50 03/02/2003 -0500, you wrote:
> Hi:
>
> This is a very simple femm model of 2 magnets with opposing forces. I would
> like to know if I set this model up correctly to understand the interaction
> between 2 magnets with opposing forces.
>
> The goal is just to better understand how to use the FEMM tool. From doing
> the tutorials, reading the manual and "lurking" on the news group I believe
> the model to be properly set up.
>
> Being a manufacturing engineer and designer my experience with analysis is
> limited to simple static FEA for stress and this model is designed to test
> my understanding of basic magnetic analysis. I can swap different materials
> in and out, change boundary conditions and do simple experiments and see how
> the results of the FEMM relate to my simple experiments.
>
> John D. Ayer
>
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

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