Applying an external magnetic field to an induction motor - Internship Flux2D Analysis

Soufyan TOUATI
Soufyan TOUATI Altair Community Member
edited March 20 in Community Q&A
Hello,
 

Currently, as part of my fourth-year engineering program, I am undertaking an internship (at a leading motor manufacturer) that involves analyzing the impact of an external magnetic field on an asynchronous motor. In order to model this motor effectively, I have been utilizing your software, Flux2D. Despite my diligent research and utilization of the software's built-in help resources, I have encountered difficulty in determining the appropriate method for introducing an external magnetic field accurately.

Here are the steps I've taken thus far: (Note : I am using transient magnetic application, as I wish to plot torque Vs time)

  1. I have enclosed the motor within a square boundary and applied magnetic flux to the top and bottom sections using the "region lines" feature, specifically the "imposed magnetic flux boundary condition." Positive flux was applied at the bottom while negative flux was applied at the top.

  2. For the lateral sides, I established a separate region line and applied the "normal magnetic field boundary condition." My intention with this approach is to prevent flux leakage and maintain the continuity of the magnetic field within the enclosed region.

Despite these efforts, I have yet to achieve the desired results. Any guidance or insight you could provide regarding the correct method for introducing an external magnetic field would be greatly appreciated.

 
 
 
My flux2d file has been attached.
Note : I am trying to apply an external magnetic field of 0.2 T, which explains the formula I used for the ''imposed magnectic flux'' line region (Flux = B*h*L, B=0.2 T; h : distance between two points and L = 1m (length of the machine) ).
 
 
 

Thank you for your attention to this matter.

Best regards,
 
ST
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