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# Re: [FEMM] axisymmetric femm problem with ringmagnet and steel plate

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- Subject: Re: [FEMM] axisymmetric femm problem with ringmagnet and steel plate
- From: Santiago Salamanca <santiago@salamanca.de>
- Date: Thu, 15 Jan 2004 12:24:00 +0100
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    Dear Reinhard Walter,

    I have modified your Input Data "RINGMAGNET"  into RINGMAG2.
    OK?

    best regards,

    Santiago Salamanca
    santiago@salamanca.de

    Walter,Reinhard schrieb am 14.01.2004:
    >
    >Dear Mr. Meeker and Femm group,
    >
    >We are currently working on different models for a holding
    >magnet.
    >The holding magnet should be a ringmagnet with axially
    >magnetisation (
    >thru-the-hole magnetised ).
    >We would be interested in the magnetic field as well as the
    >force of the
    >ringmagnet on a steel plate in a distance of 1-2mm.
    >
    >To calculate this configuration I downloaded FEMM program and
    >think it is a
    >very useful tool !
    >I have studied tutorial and manual and have drawn a layout of
    >our problem,
    >and also I think I set all configurations right, but when I
    >want to rn the
    >calculation I get an error, telling me that the problem
    >couldn't be solved.
    >Our problem should be able to be solved with FEMM, since it is
    >an
    >axisymmetric problem. However, I can only let FEMM solve it if
    >I set
    >problem-type to planar !?
    >
    >I have attached the FEMM file to this mail.
    >
    >If you could give me some assistance what I am doing wrong,
    >then that would
    >be very appreciated !
    >
    >Thanks in advance and best regards,
    >
    >
    >
    >Reinhard Walter
    >
    >Elektronische Entwicklung          Tel: +43 1 523 37 86 DW:664
    >OTTO BOCK Austria GmbH        Fax: +43 1 523 22 64
    >Kaiserstr. 39     A-1070 Wien      mailto: walter_r@ottobock.at
    >
    >
    >
    > <<ringmagnet.FEM>>
    >
    >----------------------------------------
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Attachment: `ringmag2.fem`
Description: Binary data

- References:
  - [FEMM] axisymmetric femm problem with ringmagnet and steel plate
    - From: "Walter,Reinhard" <Reinhard.Walter@ottobock.at>

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