Magnetic Field of Polar-Anisotropic Ring Magnetexamples|products|Murata Software Co., Ltd.

Example30 Magnetic Field of Polar-Anisotropic Ring Magnet

General

  • The polar-anisotropic ring magnet placed in the air is analyzed.
     

  • The vectors of the magnetic field and the magnetic flux density are solved.
     

  • 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 polar-anisotropic ring magnet is defined.

Body Attributes and Materials

Body Number/Type

Body Attribute Name

Material Name

3/Solid

mag

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: 1.0

 

The body attribute of mag is set as follows.

Body Attribute Name

Tab

Setting Item

Settings

mag

Direction

Direction Type

Polar Anisotropic

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

Radius

0.005[m]

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 .