Attraction of the block magnets - QuickField simulation example
Two rectangular prism shaped permanent magnets are pulled to each other.
How to find attraction force between rectangular block magnets?
Answer Typical applications Geometry
Given
Task
Solution
Result
* Reference: www.kjmagnetics.com.
Engineering question
Set up a plane-parallel QuickField DC Magnetics problem for rectangular block magnets and evaluate attraction force from computed field results.
rectangular block magnets, permanent magnet assemblies, magnetic interaction systems
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Simulation problem
Problem Type
Plane-parallel problem of DC magnetics
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.
Calculate the pulling force between two magnets.
To calculate the correct result an integration contour is drawn in the air around one of the magnets.
Pull force
QuickField
3.51 N
Reference*
3.50 N (0.77 lb, 1 lb = 4.54 N)
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