Repelling of the cylindrical magnets - QuickField simulation example
Two coaxial cylindrical permanent magnets repel one another.
How to find repelling force between coaxial cylindrical magnets?
Answer Typical applications Geometry
D = 2" (50.8 mm) - magnet diameter; Given
Task Solution
Result
* Reference: www.kjmagnetics.com.
Engineering question
Set up an axisymmetric QuickField DC Magnetics problem for coaxial cylindrical magnets and evaluate repelling force from computed field results.
coaxial cylindrical magnets, permanent magnet assemblies, axial magnet interaction systems
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Simulation problem
Problem Type
Axisymmetric problem of DC magnetics
L = 0.65" (16.51 mm) - magnet thickness;
δ=0.5" (12.7 mm) - gap between the magnets;
magnet grade N35, Hc = 909 kA/m, Br = 1.21 T.
Calculate the repelling force between two coaxial cylindrical magnets.
To calculate the correct result an integration contour is drawn in the air around one of the magnets.
Magnetic field lines and mechanical force calculation
Repelling force
QuickField
145 N
Reference*
153 N (33.77 lb, 1 lb = 4.54 N)
Video
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