Ansys Maxwell Simulation - Torque Fluctuating

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The simulation of an eddy current brake using Ansys Maxwell shows fluctuating torque, which may be due to numerical errors rather than mechanical vibrations. Suggestions to resolve this issue include increasing the stiffness of the brake disc and using smaller time steps for better accuracy. Additionally, ensuring that the disk diameter aligns with the grid resolution—either as an odd or even multiple—can help mitigate the fluctuations. These adjustments aim to enhance the stability and reliability of the simulation results. Proper configuration is essential for accurate torque predictions in such simulations.
Kahraman
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Hello everyone
I simulated the eddy current brake of 2 1000-turn coils with 5 amp excitation in Ansys Maxwell, but the torque fluctuates. How can I overcome this problem?
If you want to see it in more detail, you can download the project from the link.
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(Sorry for any language errors)
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Is the brake disc mechanically vibrating? If so, make it stiffer.
 
Tom.G said:
Is the brake disc mechanically vibrating? If so, make it stiffer.
The disc rotates from its center, I don't think there is anything that could cause vibration.
 
Since it's a simulation and really rotating from the center, then it must be a numerical error.

Try smaller time steps (probably the easiest).

Also, the disk diameter may need to be either an odd or even multiple of the grid resolution; depends on whether the software treats Points as vertices or centroids.
 
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