CAE Software【Femtet】Murata Software Co., Ltd.
Example31 Magnetic Field of Radially Anisotropic Ring Magnet
General
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The radially anisotropic ring magnet placed in the air is analyzed.
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The vectors of the magnetic field and the magnetic flux density are solved.
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Unless specified in the list below, the default conditions will be applied.
Analysis Space
|
Item |
Settings |
|
Analysis Space |
3D |
|
Model unit |
mm |
Analysis Conditions
|
Item |
Settings |
|
Solvers |
Magnetic Field Analysis [Gauss] |
|
Analysis Type |
Static analysis |
|
Options |
N/A |
Set the Mesh Tab as follows.
|
Tab |
Setting Item |
Settings |
|
Mesh |
Meshing Setup |
Automatically set the general mesh size: Deselect General mesh size: 1[mm] |
Model
A radially anisotropic ring magnet is defined.
Body Attributes and Materials
|
Body Number/Type |
Body Attribute Name |
Material Name |
Mesh Size |
|
3/Solid |
mag |
mag |
1 |
* Available from the Material DB
The material properties are set up as follows:
|
Material Name |
Tab |
Properties |
|
mag |
Permeability |
Material Type: Permanent Magnet |
|
Magnet |
Magnetization Strength: 1.0 |
The body attribute of mag is set as follows.
|
Body Attribute Name |
Tab |
Setting Item |
Settings |
|
mag |
Direction |
Direction Type |
Centripetal |
|
Coordinates on Center Axis |
X=0, Y=0, Z=0 |
||
|
Vectors of Center Axis |
X=0, Y=0, Z=1 |
||
|
Direction |
Outward |
||
|
Number of Poles |
6 |
||
|
Vectors of Reference Axis |
X=1, Y=0, Z=0 |
||
|
Angle of Start Direction |
0 |
The resulting magnetizing directions are as follows.
Boundary Conditions
No setting.
Results
The vectors of the magnetic field are shown below.
The magnetic field is directing from the north magnetic pole to the south magnetic pole.
The vectors of the magnetic flux density are shown below.
The vectors of the magnetic flux density at a section are shown below.
The magnetic flux can be seen as set in the direction tab .