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# [FEMM] LIM modeling

- To: femm@list.foster-miller.net
- Subject: [FEMM] LIM modeling
- From: Nick Voronov <xbio247@yahoo.com>
- Date: Sat, 7 Feb 2004 01:34:21 -0800 (PST)
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    I need help in solution of the following task.
    It is required to create a model of an induction
    device, capable to rotate a metal "wheel" of a
    rectangular cross section, about 1 meter in a
    diameter, at a speed of several  turns per second.
    As far as I know, it can be achieved  by application
    of bow-shaped linear induction motors  with
    longitudinal or transversal closure of a magnetic
    flux.
    One more condition is the symmetrical distribution of
    the elements of an induction system on a perimeter of
    a working solid.
    Is it possible to model the task and  take the
    good-enough solution in a case of transversal closure
    in a 2D approximation?
    Could somebody give me advice, what type of the motor
    most approaches for a solution of this task and how
    to construct a model by tools FEMM in the best way?

    Another question is how  FEMM computes a bulk coil
    resistance. As I understand, it takes in account the
    "wire" length in z-direction but  not the full length
    of the turns.
    Sorry for my English, I am from Russia.

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