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# Re: Modeling a loudspeaker motor

- To: femm@yahoogroups.com
- Subject: Re: Modeling a loudspeaker motor
- From: "strykeaudio" <strykeaudio@yahoo.com>
- Date: Tue, 20 May 2003 17:33:02 -0000
- In-reply-to: <ba0o6a+t05k@eGroups.com>
- User-agent: eGroups-EW/0.82

    Hello,

    I'm also new to FEMM. We have a few new woofer motor designs that we
    need to model before starting the prototypes. I need help modeling
    the motors and also creating the BL curves from the models. If anyone
    can help get me started, please respond here or send me an email at
    sales@stryke.com Thank you very much.

    John

    --- In femm@yahoogroups.com, "dartagnan1212" <billfagal@c...> wrote:
    > Dave,
    >
    > Thanks for writing such a cool product!
    >
    > Yes, that Lua script example seems to do exactly what I want.
    > Unfortunately, I'm still unfamilliar with how to use the Lorentz
    > force integral and apply it to a model I draw. I'm also wondering
    > how to create the voice coil winding and specify the fill/turns/etc.
    >
    > I learned a bunch from the step-by-step examples you have on your
    > website. I know it's alot to ask, but is there a chance you could
    > create a step-by-step of a voice coil motor force/position problem,
    > perhaps dovetailed with the script you've already written? I bet it
    > would be a popular reference for newbies like me who have interest in
    > modeling loudspeaker motors.
    >
    > Thanks again for a great program and all you do to support it!
    >
    > Bill
    >
    >
    > > Yes, this is just the sort of thing that femm is designed to do.
    > You
    > > could either model your motor and manually move and evaluate the
    > force
    > > at each position via the "Lorentz Force" integral. Or, you could
    > use a
    > > short script to automatically evaluate a range of position. See
    > > http://groups.yahoo.com/group/femm/message/1379 for a scripting
    > example
    > > that does what you are after.
    > >
    > > Dave.
    > > --
    > > David Meeker
    > > email: dmeeker@i...
    > > www: http://femm.berlios.de/dmeeker

- References:
  - Re: Modeling a loudspeaker motor
    - From: "dartagnan1212" <billfagal@compuserve.com>

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