11 btulb r a 2 ft 3 b 4 ft 4875 lbft emissivity

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Unformatted text preview: Field Solid Elements (SOLID98) 3-D Infinite Boundary Elements (INFIN47) Current Source Elements (SOURC36) Input Listing: vm190.dat Test Case A ferromagnetic core is wound with a 200-turn coil wrapped around one leg. Determine the mmf drop in the iron core for a coil current of 1 ampere. Figure 190.1 Ferromagnetic Inductor Problem Sketch ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–431 VM190 Material Properties ur = 2500 (iron) Loading I = 1.0 Ampere Geometric Properties h = 60 cm L = 55 cm w = 10 cm a = 15 cm b = 30 cm c = 10 cm Analysis Assumptions and Modeling Notes Since the core material has finite permeability air is modelled to a small distance away from the core. The open boundary is modelled with an infinite surface element at the edge of the air region. The model employs 1/4 symmetry (about the Y and Z planes). The current source is modelled by a coil primitive. Dimensions of the coil are arbitrarily chosen since they have no bearing on the mmf calculations. The iron core, linked by a coi...
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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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