CAE Software【Femtet】Murata Software Co., Ltd.
Example3 Magnetic Field Created by Horseshoe Magnet
General
-
The magnetic field created by a horseshoe magnet is analyzed.
-
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 |
|
Solver |
Magnetic Field Analysis [Gauss] |
|
Analysis Type |
Static analysis |
|
Options |
N/A |
Model
A solid body of horseshoe magnet consists of 3 parts and each part is defined.
This is because each part has its own magnetizing direction.
Body Attributes and Materials
|
Body Number/Type |
Body Attribute Name |
Material Name |
|
1/Solid |
mag1 |
mag |
|
9/Solid |
mag2 |
mag |
|
0/Solid |
mag3 |
mag |
* 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: 0.5 |
The body attributes for mag1 to mag3 are set as follows.
|
Body Attribute Name |
Tab |
Setting Item |
Settings |
|
mag1 |
Direction |
Direction Type |
Vector Tab |
|
Vector Tab |
X=0, Y=0, Z=1 |
||
|
mag2 |
Direction |
Direction Type |
Rotational |
|
Coordinates on Center Axis |
X=0, Y=0.005, Z=0.04 |
||
|
Vectors of Center Axis |
X=0, Y=1, Z=0 |
||
|
Direction |
Anticlockwise |
||
|
mag3 |
Direction |
Direction Type |
Vector |
|
Vector |
X=0, Y=0, Z=-1 |
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 magnetic flux are created as set in the direction tab.