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# boundary condition and torque calculation

- To: <femm@yahoogroups.com>
- Subject: boundary condition and torque calculation
- From: "Juan Tapia" <jtapia@die.udec.cl>
- Date: Tue, 17 Jun 2003 15:45:01 -0400
- Importance: Normal
- In-reply-to: <3EB81C43.8020801@ieee.org>

    Dave

    I was looking for information about periodic and antiperiodic boundary
    condition for FE analysis and I found a file in the files section of the
    yahoo groups website. I downloaded (pbc-examples.zip) and proved the
    example. My question is about the torque value that I got. For the model
    which consider one-half of the machine (speedmotor.fem) using
    antiperiodic boundary condition I calculated -1.88e-3Nm, but when I
    calculate with the complete model (360 degree) I got 9.47e-3Nm which is
    one half of the previous value. Do those value make sense? I mean, If I
    have 180 degree model I obtain double value respect to the complete
    model?

    Juan

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