inc new york ny 1965 pg 166 example static analysis

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Unformatted text preview: x 10-7 H/m µr = 1.0 ρ = 1.724 x 10-8 ohm-m Geometric Properties a = 6.45 x 10-3 m b = 8.55 x 10-3 m c = 8.45 x 10-3 m d = 18.85 x 10-3 m e = 8.95 x 10-3 m Loading I = 1.0 A ω = 45 Hz Analysis Assumptions and Modeling Notes The slot is assumed to be infinitely long, so end effects are ignored, allowing for a two-dimensional planar analysis. An assumption is made that the steel slot is infinitely permeable and thus is replaced with a flux-normal boundary condition. It is also assumed that the flux is contained within the slot, so a flux-parallel boundary condition is placed along the top of the slot. ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–416 VM185 The problem requires a coupled electromagnetic field analysis using the VOLT and AZ degrees of freedom. All VOLT DOFs within the copper conductor are coupled together to enforce the correct solution of the source current density component of the total current density. The eddy current component of the total current density is determined from the AZ DOF solution. The current may be applied to a single arbitrary node in the conductor, since they are all coupled together in VOLT. The complex impedance of the slot is calculated in POST1 from the equation...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

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