Unable to create electric loop cut
Hi all,
I have created an axial flux motor with permanent magnets attached to a backplate that represent the rotor and concentric windings [yellow] on a PCB [blue] that acts the stator. I have to make the full motor because there is no periodicity or symmetry and I am trying to simulate different aspects of this motor (for instance the back EMF).
If i am not mistaken I have succesfully created the geometry and meshed the geometry and infinite box. I have assigned volumes to the correct regions and the materials.
As the windings have a unique design, creating meshless coils wasn't an option and I am trying to assign the coil terminals to the volumes of the windings. I should create electric loop cuts to have access to internal terminals of the concentric windings and also for the backplate on which the magnets are attached to. Only the electric cut for the backplate is generated when picking the "automatic creation of cuts" and when I try to create the cuts manually I get the error "Create Electric loop cut: action not authorized".
I am wondering what I have done wrong or what I have to change in order to complete the physics of this model.
See attached for the project.
Thank you in advance.
Best Answer
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Hi Rutger,
I took a look at the model. The electric loop cuts are created correctly.
They are created on the mesh, not on the coil volumes. You cannot access them to assign terminals.
To assign terminals, you need to create internal faces in the geometry and then assign them as terminals to coils.
Thank you,
Lavanya
0
Altair EmployeeAnswers
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Hi Rutger,
I took a look at the model. The electric loop cuts are created correctly.
They are created on the mesh, not on the coil volumes. You cannot access them to assign terminals.
To assign terminals, you need to create internal faces in the geometry and then assign them as terminals to coils.
Thank you,
Lavanya
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Hi
Thank you for your response, I realized that it suffices to use meshless coils as I only need to calculate the back EMF. This way I don't need to create internal faces.
Thank you
Rutger
0