QuickField

A new approach to field modelling
Language:
Global English Deutch Espanol Francais Italiano Danmark Ceske Chinese Pycckuü

>> >> >>

Repelling of the block magnets

Two rectangular prism shaped permanent magnets repel one another.

Problem type:
Plane-parallel problem of magnetostatics

Geometry:
Two rectangular prism shaped permanent magnets Calculate the repelling force between two brick magnets Permanent magnet δ l w t

w=1.5" (38.1 mm) - magnet width;
t=0.25" (6.35 mm) - magnet thickness;
l=0.25" (6.35 mm) - magnet length;
δ=0.5" (12.7 mm) - gap between the magnets.

Task:
Calculate the repelling force between two magnets.

Solution:
To calculate the correct result an integration contour is drawn in the air around one of the magnets.

Result:

Two rectangular prism shaped permanent magnets simulation

Repelling force

QuickField

3.30 N

Reference*

3.50 N (0.77 lb, 1 lb = 4.54 N)

* Reference: www.kjmagnetics.com.

  • View simulation report in PDF.
  • Download simulation files (files may be viewed using any QuickField Edition).