Reluctance
Magnetic resistance.
blockType: AcausalFoundation.Magnetic.Elements.Reluctance
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Description
Block Reluctance It is a magnetic resistance, that is, a component that resists magnetic flux. The ratio of the magnetomotive force (MDS) on the component to the resulting flow flowing through the component is constant, and the ratio value is defined as resistance. The resistance depends on the geometry of the element being modeled.
The block is based on the following equations:
,
Where:
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— magnetomotive force (MDS) on the component.
-
— flow through the component.
-
— magnetic resistance.
-
— the thickness of the simulated section or the length of the air gap.
-
— magnetic constant.
-
— relative magnetic permeability of the material.
-
— the cross-sectional area of the simulated element.
N and S connections are magnetic ports. MDS through resistance is defined by the expression , and the sign of the magnetic flux is positive when flowing through the device from N to S.
Ports
N — north terminal
magnetism
The magnetic port corresponding to the north terminal of the unit.
S — south terminal
magnetism
The magnetic port corresponding to the southern terminal of the unit.
Parameters
Thickness or length of section or gap, m — thickness of section, or length of gap
0.001 m (by default)
The thickness of the simulated section or the length of the air gap.
Cross-sectional area, m2 — cross-sectional area of
0.01 m2 (by default)
The cross-sectional area of the simulated element.
Relative permeability of material — relative magnetic permeability of the material
1 (by default)
Relative magnetic permeability of the material.
Initial value of flux, Wb — initial value of the flow
0 (by default)
The initial value of the stream.
Initial value of MMF, A — initial value of MMF
0 (by default)
The initial value of the MDS.