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Dynamic Eccentricity in AC/DC Module

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I am trying to model a slotless BLDC motor in 2D Component. I want to study the behavior of the electromagnetic flux density and the electromagnetic forces in the airgap while considering static and dynamic eccentricity.

I am using 2D modling and the Rotating Machinery, Magnetic (rmm) physics. I have setup the correct geometry configuration (Form Assembly and the idensity pairs).

How can I set the dynamic eccentricity in the Moving Mesh node? It's a time dependent but the rotation axis base is in meters, it is giving me a yellow warning saying it's expecting meters as unit.

And one more question, what is the difference between the rotation axis base in Moving Mesh and torque rotation point (r0) in the Force Calculation node?


0 Replies Last Post Oct 4, 2021, 5:00 p.m. EDT
COMSOL Moderator

Hello Hossam Amin

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