How to compute Flux 3D magnet Joule Loss

Hallay
Hallay Altair Community Member
edited August 20 in Community Q&A

Hello everyone

Recently I need to compute motor magnet joule loss by using Flux 3D.

It is easy to compute in Flux 2D.(Like Below)

image

However in Flux 3D , I can't choose solid conductor in solid conductor region.(See below)

image

Is there any other method can compute magnet joule loss in Flux 3D?

Please let me know.

thanks

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Answers

  • asoualmi
    asoualmi
    Altair Employee
    edited June 28

    Hi,

    Yes, you are right in case of Flux 3d there is no need to use solid conductor component in the circuit. For this reason, you can’t see the circuit component in the volume region.

    To compute the magnet losses, you need to create a sensor type predefined formula you select joule loss on volume region (magnets).

    Thanks.

  • Hallay
    Hallay Altair Community Member
    edited July 1
    Abdessamed said:

    Hi,

    Yes, you are right in case of Flux 3d there is no need to use solid conductor component in the circuit. For this reason, you can’t see the circuit component in the volume region.

    To compute the magnet losses, you need to create a sensor type predefined formula you select joule loss on volume region (magnets).

    Thanks.

    Hello Abdessamed

    Thanks for your reply.

    I just tried your suggestion set a sensor to detect magnet joule loss.

    image

    However, the joule loss value is always 0.

    It's not make sense.

    Do you have any suggestion?

    image

     

    Best regard

  • Lavanya Vadamodala_20519
    Lavanya Vadamodala_20519
    Altair Employee
    edited July 10
    Hallay said:

    Hello Abdessamed

    Thanks for your reply.

    I just tried your suggestion set a sensor to detect magnet joule loss.

    image

    However, the joule loss value is always 0.

    It's not make sense.

    Do you have any suggestion?

    image

     

    Best regard

    Hi Hallay,

    Do you have resistivity defined in the magnet material property?

    If yes, the other reason is that you selected not including eddy currents during the solving process. Could you unselect it and solve it? You will get Joule losses on magnets computed.

    Thank you,

    Lavanya

  • Hallay
    Hallay Altair Community Member
    edited August 19
    Lavanya Vadamodala_20519 said:

    Hi Hallay,

    Do you have resistivity defined in the magnet material property?

    If yes, the other reason is that you selected not including eddy currents during the solving process. Could you unselect it and solve it? You will get Joule losses on magnets computed.

    Thank you,

    Lavanya

    Hi Lavanya

    Thanks for your reply.

    Attachment is my magnet definition, I add resistance.

     Can you tell me where can select or unselect eddy currents during dolving process?

    I can't find it.

    Best regard. 

  • Lavanya Vadamodala_20519
    Lavanya Vadamodala_20519
    Altair Employee
    edited August 19
    Hallay said:

    Hi Lavanya

    Thanks for your reply.

    Attachment is my magnet definition, I add resistance.

     Can you tell me where can select or unselect eddy currents during dolving process?

    I can't find it.

    Best regard. 

    Hi Hallay,

    In the magnet volume region, You will see an option to select Eddy currents to be not considered or considered.

    imageimage

  • Hallay
    Hallay Altair Community Member
    edited August 20
    Lavanya Vadamodala_20519 said:

    Hi Hallay,

    In the magnet volume region, You will see an option to select Eddy currents to be not considered or considered.

    imageimage

    Hello Lavanya

    Thanks for your help.

    Now I can solve magnet eddy current loss in 3D simulation.

    Best regard

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