Learning Forum

[Francoo]

The structure consists of a corner region with radial lamination and also several straight parts with continual lamination. How could I define the lamination direction? Or the coordinates?

[Francoo]

It is actually a radially laminated core, made of amorphous or nanocrystalline material.

[Navya C]

For the radial part Define a local coordinate system, make this the reference co-ordinate system under this object attributes
After that, while assigning the material properties on the material definition window.
Change the Material coordinate system as Cylindrical and stacking direction as V(1)
Note that V(1), V(2), V(3) corresponds to X,Y,Z directions of stacking in Cartesian coordinate system and R, Phi, Z in a cylindrical coordinate system.
So, V(1) refers to Radial direction here.

An for the straight parts just define the stacking direction with global coordinates, cartesian and V(1)/V(2)/V(3) as per the direction.

Regards Navya

[Francoo]

Hi @nchode Thank you very much for your information! After the settings are done, some issues still occur. Could you please kindly help me indentify the problem?
The ribbon laminated core has a magnetic property similar to toroidal cores, and the flux density distribution in the corner region is as shown below, found in a research article:
I created a 3D model to simulate this effect. The first option is to set the lamination of the material. Following your instructions, the radial parts and the straight parts are separately applied to different materials with corresponding lamination settings. But the results seem not correct, which is depicted below as well as the material setting specified for the radial material (similar for the straight parts):
Therefore, I was wondering maybe setting anisotropy of the permeability is a better choice. Yet, the ANSYS Maxwell fails to converge this time:
My settings are arranged as below:
All the models are created under Cartesian coordinates.
The material properties of the radial, horizontal and vertical parts are shown respectively:

BTW, The radial objects has been bonded to the relative coordinates system whose direction of Z axis is the same with the globel CS. The simulation is conducted in ANSYS Electronics Desktop 2021 R1.
Thank you so much for helping me!

[Francoo]

The problem has been fixed. The core of the solution is you need to bond the radial part with a specific relative coordinate system, so that its z axis has correct meaning.