Plunger static characteristic - QuickField simulation example
Static pulling force of a DC electromagnetic plunger versus plunger position in a solenoid actuator with a movable ferromagnetic core and fixed coil current. Example is prepared by Olivier Colin as a part of the webinar QuickField analysis for Electromagnetic Plunger design.
How to find the plunger force as a function of position?
Answer Typical applications Geometry
Given
Task
Solution
Result
Engineering question
Generate DC-magnetic models for successive plunger positions with LabelMover and calculate the force at each position.
electromagnetic plungers, solenoid actuators, linear magnetic drives
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Simulation problem
Problem Type
Axisymmetric problem of DC magnetics.
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:
Estimate the force acting on the plunger for different positions of the plunger.
A set of QuickField problems is automatically generated by the Label Mover tool.
Force vs. plunger position dependency:
Magnetic flux density distribution in DC electromagnetic plunger.
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