HollowCylinderAxialFlux(Hollow) cylinder with axial flux of fixed shape and linear material characteristics |
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
The axial cylinder models is characterized by the outer diameter, 
, the inner diameter, 
, length, 
. The magnetic reluctance is determined by:
The area of cross section yields:
A hollow cylinder is depicted in the above figure left for 
. A solid cylindric flux tube an be considered by setting the inner radius, 
, equal to zero.
A circular sector of the area of cross section with central angle 
is depicted in the above figure right.
Parameters (5)
| mu_rConst |
Value: 1 Type: RelativePermeability Description: Constant relative permeability |
|---|---|
| l |
Value: 0.01 Type: Length (m) Description: Axial length (in direction of flux) |
| r_i |
Value: 0 Type: Radius (m) Description: Inner radius of hollow cylinder (zero for cylinder) |
| r_o |
Value: 0.01 Type: Radius (m) Description: Outer radius of (hollow) cylinder |
| alpha |
Value: 2 * Modelica.Constants.pi Type: Angle (rad) Description: Central angle |
Connectors (2)
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port_p |
Type: PositiveMagneticPort Description: Positive quasi-static magnetic port |
|---|---|---|
 |
port_n |
Type: NegativeMagneticPort Description: Negative quasi-static magnetic port |
Components (4)
 |
V_m |
Type: ComplexMagneticPotentialDifference Description: Magnetic potential difference of both ports |
|---|---|---|
 |
Phi |
Type: ComplexMagneticFlux Description: Magnetic flux from port_p to port_n |
 |
B |
Type: ComplexMagneticFluxDensity Description: Magnetic flux density (normal component) |
 |
H |
Type: ComplexMagneticFieldStrength Description: Magnetic field strength (normal component) |
Used in Examples (2)
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Modelica.Magnetic.QuasiStatic.FluxTubes.Examples.FixedShapes Magnetic circuit using different cylinder sections |
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Modelica.Magnetic.QuasiStatic.FluxTubes.Examples.Leakage Testing cylinder leakage models |