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Magnetic forces between two axially magnetized cylinders. Case 1: Cylinders are coaxial.

magnet attraction force, cylindrical magnet simulation

Problem type:
Axisymmetric problem of DC magnetics

Geometry:
Cylinders are coaxial Magnetic forces between two axially magnetized cylinders Permanent magnet Hc dz X Y Z

dz = 2 cm.

Given:
Cylinder diameter D = 1 cm,
Cylinder height H = 4 cm,
Permanent magnet relative permeability μ = 1.05,
Permanent magnet coercive force Hc = 1 000 000 A/m.

Task:
Calculate the magnetic force between cylinders.

Solution:
The resulting field may be decomposed into the individual fields generated by each cylinder. The free tool Cylinder PM force 3D allows the magnetic force calculation using the automatic summation of several axisymmetrical DC magnetic fields, simulated by QuickField.

Results:

Case 1. Coaxial cylinders

Fx Fy Fz
Cylinder PM force 3D tool 3e-16 N 3e-16 N 1.14 N
Reference (QuickField 2D axisymmetric) 0 N 0 N 1.24 N

  • Download simulation files (files may be viewed using any QuickField Edition).
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