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 the force and inductance in the cylindrical magnetic device?
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
Solve the axisymmetric DC magnetic field, integrate force on the plunger, and calculate winding inductance from flux linkage and current.
cylindrical electromagnetic actuators, solenoid plungers, magnetic actuators
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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
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