Cylindrical magnetic device (actuator) - QuickField simulation example
The cylindrical magnetic device consists of a fixed magnetic part, cylindrical magnetic plunger and a coil.
How to find force in cylindrical electromagnetic actuators?
Answer Typical applications Geometry
Given
Task
Results
The inductance of the multiturn winding:
L = 1000² · 0.00025468 / 5000 = 0.509 Hn
* Reference: Nicola Bianchi, Electrical Machine Analysis Using Finite Elements, ISBN 0849333997, page 89.
Engineering question
Set up an axisymmetric QuickField DC Magnetics problem for a cylindrical electromagnetic actuator and evaluate force from computed field results.
cylindrical electromagnetic actuators, solenoid plungers, magnetic actuators
Download
Simulation problem
Problem Type
Axisymmetric problem of DC magnetics.
Number of turns in the winding N = 1000;
Current i = 5 A;
Plunger position g = 5 mm.
The core and plunger material is steel with a nonlinear dependence B(H):
Determine the magnetic force and the inductance.
L = N² · Ψ / I,
where I - is an overall current: I = N·i = 1000·5 = 5000 A.
QuickField
Reference*
B, T
1.094
1.097
L, Hn
0.509
0.524
F, N
865
881.5
Video
Related examples