Magnet eddy current loss in Flux 3D

Hallay

Hello expert

 

Recently I use Flux 3D to simulate magnet eddy current loss.

I use sensor like attachment file that just measure one magnet loss(Total have 8 magnet).

I also use another sensor that measure 8 magnet loss like attachment.

However, the loss result is the same (0.56W), this is not make sense.

 

When I use Flux 2D to simulate this motor magnet eddy current loss, it is 1.68W

It's quiet wired.

Is Flux 3D just can measure one magnet eddy current loss?

If Yes, magnet loss in 3D is 8*0.56W=4.48W > 2D result 1.68W. (This make sense) 

 

If anyone know the answer, please reply me.

 

Thank you

Lavanya Vadamodala_20519

Hi Hallay,

Are the volume regions in both cases have the same volume?

Should be different. 

Can you share the picture of the magnets? Also, do you have volumes assigned to each volume region?

Thank you,

Lavanya

Hallay

Lavanya Vadamodala_20519 said:

Hi Hallay,

Are the volume regions in both cases have the same volume?

Should be different. 

Can you share the picture of the magnets? Also, do you have volumes assigned to each volume region?

Thank you,

Lavanya

Hello Lavanya

It's my miss, I don't assign magnet 2-8 in solid type.

Today I assign it and get 8 magnet eddy loss value.

Flux 3D magnet eddy loss value is 5.06 W and Flux 2D result is  1.68 W.

The ratio is 33.2 %.

Can you tell me why Flux 3D and 2D have different result?

The ratio 33.2% is the same in every case or case by case?

thank you