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Unformatted text preview: d µr = 105. For a permanent
magnet, µoµr = Br /Hc, therefore µr = 5.305. The modulus of elasticity for air is assigned a negligible value (100
N/m2) compared to that of the permeable materials. The permanent magnet structure has its displacements
fixed. A magnetic pressure surface is assigned to the elements adjacent to the air-keeper interface to allow for
the application of magnetic forces for structural analysis. An iterative large-deflection solution is required. Convergence criteria for structural force and magnetic current-segment is defined. Results Comparison
Target ANSYS Ratio Displacement, (m) .00150 .00150 0.994 B, (T) .2496 .2494 0.998 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–381 VM171 Figure 171.2 Displaced Geometry Display 1–382 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. VM172: Stress Analysis of a Long, Thick, Isotropic Solenoid
Reference: F. C. Moon, Magneto-Solid Mechanics, John Wiley and Sons, Inc., New York, N...
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