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Unformatted text preview: elements. Maxwell surface flags are set for elements at radius
r4 to permit force calculation.
The theoretical solution is: where ε = 8.854E-12, q1 = q2 = 4* π* ε . This charge corresponds to a surface force of ε on the sphere.
surface charge = q/area = (4* π* ε )/4* π*(r1**2) = ε Results Comparison
YFORCE ANSYS Ratio -0.1236E-10 -0.1236E-10 1.000 Figure 51.2 Solid Model ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–121 VM51 Figure 51.3 FEA Model Figure 51.4 Electric Field 1–122 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. VM51 Figure 51.5 Voltage ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–123 VM52: Automobile Suspension System Vibration
Reference: W. T. Thomson, Vibration Theory and Applications, 2nd Printing, Prentice-Hall,
Inc., Englewood Cliffs, NJ, 1965, pg. 181, ex. 6.7-1 Analysis Type(s): Mode-frequency Analysis (ANTYPE = 2) Element Type(s): 2-D Elastic Beam Ele...
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