Learning Forum

[PKHeris]

I am using Ansys Maxwell to simulate a cylindrical iron-core coil; However, the relative permeability of the iron I am using is different from what has been initiated in Ansys. 

I have changed this value View/Edit option, but the field value does not change.

[mbeliaev]

Hello do you use magnetostatic solver?
can you try to add two different materials, eg mu_4000 and mu_6000 and have two identical designs but with different material. Will be result different?

[PKHeris]

Hello I am using Magnetostatic.
I need to change the permeability of Iron. Is it wrong to use the edit option?
Do I need to add material and copy-paste all the properties of iron?
Using edit bottom, I did design two separate models; however, the results did not change.

[mbeliaev]

materials are project properties, if you change in one design, it will be changed for another design as well

please do a test with cloned materials and let me know

[PKHeris]

I used cloned option, and I made three different models.
As you can see in the following image, for mu equal 6000 and 8000, the magnetic field shows the same value. Surprisingly, this value is slightly less than the case with the original iron from material library, mu = 4000).
One thing I noticed was that the Origin of material was blank when I cloned it. Would it be a problem?

[mbeliaev]

I think in this case permeability is that high, that there is no difference in field. Almost no magnetic resistance

Try to do a test with MUr from 100 to 2000 every 100. You can do a sweep of the material and create a plot to compare
https://support.ansys.com/AnsysCustomerPortal/en_us/Knowledge+Resources/Solutions/Maxwell/2049128

[PKHeris]

I have made 14 different scenarios, and as you can see, the field does not change that much, even it drops by increasing $$\mu$$ in some cases.
also, mu = 500 is almost the same as mu = 4500

[mbeliaev]

can you increase region size 3 times in +-Z and +-Y directions?

can you set energy error to be 0.2% or less in convergence criteria?