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The mechanical set rotation is impossible

Altair Forum User

Hi,

I'm simulating a reluctance motor but I found a trouble during the simulation.

I splitted the airgap in two several airgap. The first one is associated to the rotor, the second one to the stator.

So I imposed the first one with a mechanical set kind of ROTOR (rotation around one axis).

The second airgap associated to the Stator has been characterised with a mechanical set kind of STATOR (Fixed).

When I try to start the simulation an error appear:

External arc axes and the rotation axis
of the mechanical set ROTOR are different.
The mechanical set rotation is impossible

How can I solve it? In the picture you can check the model

<?xml version="1.0" encoding="UTF-8"?>

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asoualmi

Hello,

can you check if the affectation of the face régions are correct (separate the moving and fixed part).

The second thing, can you check your mechnical sets (rotor) if you have select the correct axis (along z axis).

Best regards

Altair Forum User

Yes the regions are well divided and the mechanical sets is correct.

To solve the problem I created a new mechanical set (Compressible type) and assigned it to the airgapSTATOR.

So now the simulation start but there is a line that follows the movement of the rotor (you can watch it in the picture below). Do you know other solutions? Thank you

<?xml version="1.0" encoding="UTF-8"?>

asoualmi

Thanks you for your respone.

Can you send me your Flux projet on zip format (asoualmi@altair.com)

Best regards.

Altair Forum User

Problem solved, thank you so much for the attention!

Altair Forum User

Could you please share how the problem was solved?

I am working on reluctance motor and have the same problem too.