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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

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 H_c = 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).