Plunger static characteristic

QuickField simulation example

Electromagnetic plunger works on DC current and consists of the solenoid with a moveable ferromagnetic plunger. Example is prepared by Olivier Colin as a part of the webinar QuickField analysis for Electromagnetic Plunger design.

Problem Type
Axisymmetric problem of DC magnetics.

Geometry

Given
Relative permeability of air and coil μ = 1;
Current density in the coil j = 6 A/mm²;
The B-H curve for the core and the plunger:

Task
Estimate the force acting on the plunger for different positions of the plunger.

Solution
A set of QuickField problems is automatically generated by the Label Mover tool.

Result
Force vs. plunger position dependency:

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