Re: interest about this [femm] FEMM + MathCad

["dragospopa" <dragospopa@xxxxxxxx>]

Hi !
I'm interest about this and i want to toke about.
Dragos
----- Original Message -----
From: "Finlay Evans" <finlay.evans@xxxxxxxxxxxx>
To: <femm@xxxxxxxxxxxxxxx>
Sent: Tuesday, May 28, 2002 10:06 AM
Subject: RE: [femm] FEMM + MathCad


> I'm sorry for the long timespan, but I have been too busy to make any
> progress recently with the Active X mods. I should be able to pick it up
> again in about 3-4 weeks time I think.
>
> Finlay.
>
> -----Original Message-----
> From: Gal Janos [mailto:jgal@xxxxxxxxxx]
> Sent: 27 May 2002 09:10
> To: femm@xxxxxxxxxxxxxxx
> Subject: RE: [femm] FEMM + MathCad
>
>
> Hi,
>
> A few monthes has passed. How is it going with ActiveX? I am still
> interested in connecting FEMM to MathCad somehow.
>
> Janos Gal
>
> -----Original Message-----
> From: Finlay Evans [mailto:finlay.evans@xxxxxxxxxxxx]
> Sent: Friday, February 08, 2002 9:27 AM
> To: 'femm@xxxxxxxxxxxxxxx'
> Subject: RE: [femm] FEMM + MathCad
>
>
> Hi,
>
> Yes, we have been putting ActiveX Automation into Femme, and it works
> well,
> but it is not finished yet (we only have the commands that we are using
> at
> the moment). It hooks onto the Lua interface which seemed to be the
> easiest
> way of doing it at the time. When it is finished you would be able to
> call
> any Lua function from other applications (Exel, Mathcad, Matlab etc..)
>
> I havent tried accessing using Mathcad, but currently we are building
> parameterised Femme models from within Matlab (including solving and
> postprocessing). I have also built a VisualBasic application for a
> specific model, so that I have a GUI for the model parameters. This
> works
> well when I want to do multiple solves etc.
>
> I could try and see if Mathcad works too... Hopefully it won't be too
> long before we can complete the interface.
>
>
>
> Finlay Evans
>
>
>
> -----Original Message-----
> From: David Meeker [mailto:dmeeker@xxxxxxxxxxxxxxxxx]
> Sent: 07 February 2002 18:25
> To: femm@xxxxxxxxxxxxxxx
> Subject: Re: [femm] FEMM + MathCad
>
>
>
>
> Gal Janos wrote:
>
> > Hi,
> >
> > I am a new FEMM user, dealing with rotating machine design; designing
> mainly
> > large induction motors. Most of our calculations are in MathCad, and I
> > intend to use the FEMM for leakage reactance calculation of high skin
> effect
> > rotor slot shapes. Is there anyone who has already connected FEMM to
> MathCad
> > for any reason?
> > Is there anyone with the same interest?
> >
> > Janos Gal
> >
>
> Currently, I don't know of a way to hook into FEMM directly from
> MathCad.
> One
> of the users is working on developing ActiveX automation for FEMM, which
> according to the MathCad documentation would allow one to access FEMM
> directly
> from within MathCad. This is a pretty cool extension to the program,
> but I
> need
> to do a little bit more work to understand how the ActiveX automation
> stuff
> actually works so that I can support it in a future release. (Can
> anyone
> have a
> good place to start? ActiveX appears to be very poorly documented in
> the
> material that comes with MSVC++).
>
> In the mean time, it is currently possible to access FEMM from within
> some
> mathematical analysis programs like Mathematica, Matlab, etc. without
> using
> ActiveX, via calls to the operating system. This method works, although
> it
> is
> pretty klunky. The reason that I think that you can't do this approach
> in
> MathCad is that I can't find a way to make operating system calls in
> MathCad.
>
> Anyhow, I'd been meaning to put up an example of this for a while, and I
> finally
> got around to making one up. See:
> http://groups.yahoo.com/group/femm/files/scripting/roters1b.zip
> In this example, I've written a Mathematica function that calls FEMM to
> do
> magnetic analysis. Specifically, the example is of a solenoidal
> actuator.
> The
> Mathematica function takes the plunger position and coil current as
> inputs
> and
> returns the magnetic field coenergy and force on the plunger. I then
> call
> the
> function a bunch of times to make some graphs that can be compared to
> some
> experimental data about this particular actuator from a classic book on
> magnetic
> actuator design.
>
> Dave.
>
>
>
>
>
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