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# Re: [femm] ring magnet

- To: femm@yahoogroups.com
- Subject: Re: [femm] ring magnet
- From: David Meeker <dmeeker@ieee.org>
- Date: Fri, 21 Mar 2003 00:07:40 -0500
- In-reply-to: <004d01c2eee7$3f4b49f0$1faa0b0a@acansiz>
- References: <004d01c2eee7$3f4b49f0$1faa0b0a@acansiz>
- User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.3; MultiZilla v1.1.34 (d)) Gecko/20030312

Ahmet Cansiz wrote:

> Dear David and Femm group, is it possible to calculate the force between a ring permanent magnet with rectengular cross-section and a cylindrical permanent magnet and also between ring magnets themselves. Best regards.
> Ahmet Cansiz

Yes, you can calculate these forces with femm as long as the problem stays axisymmetric (i.e. the axis that goes through the center of the ring also goes through the center of the cylinder). If the magnets are not in an axisymmetric (or 2D planar) arrangement, you'd need a 3D solver instead.
Dave.

    --
    David Meeker
    dmeeker@ieee.org
    http://femm.berlios.de/dmeeker

- References:
  - ring magnet
    - From: "Ahmet Cansiz" <acansiz@atauni.edu.tr>

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