《Ansys电磁分析官方培训教材_Chapter4-4》.pdf

Chapter 4 Section 4 Three Dimensional Electromagnetic Simulation 3D Bar in an AC Field - Application • Problem Description – 1/8 th symmetric – Outer circular conductor is a massive conductor- current fed – Inner bar is permeable/conductive • Analysis objective – Apply the conditions – Perform simulation – Post process • Calculate power loss • Show radial power distribution ELECTROMAGNETIC ANALYSIS with ANSYS/Emag January 30, 1999 4.4-2 Release 5.5 (001172) • Physics Regions – Outer conductor Outer • μ = 1 r conductor • ρ=.1714E-7 Ω-m – Inner conductor • μ = 50 r • ρ=1 E-7 Ω-m – Air • Free space: μ = 1 r • Excitation: 10,000 A (peak) @ 1,000 Hz Inner • Planes of Symmetry Conductor – X-Y plane-flux normal – X-Z plane-flux parallel – Y-Z plane-flux parallel Units: mm ELECTROMAGNETIC ANALYSIS with ANSYS/Emag January 30, 1999 4.4-3 Release 5.5 (001172) • To build the model, enter at the command line ac3d • Model Information – Element types: Edge element Formulation, solid117 •