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Strange Meshing Error with Stitched Surface

User: "Altair Forum User"
Altair Forum User
Altair Employee
Updated by Altair Forum User

I am trying to simulate WiFi signal propagation inside a stitched surface using RL-GO but am receiving the following vague errors:

(Error 17179: The mesher encountered a problem.

Error 16561: Mesher aborted - General error.

Error 17580: The mesher aborted abnormally while meshing PlaneShell.)

when I try to mesh the structure. 'PlaneShell' is the only component giving the error at this point and is a stitched composite of several surfaces imported from SolidWorks. Interestingly the model will mesh if I scale it down to 0.2 size (the the user-defined variable 'scale') but not if it is unscaled (i.e., setting 'scale' to 1). Additionally, I recently updated from FEKO 7.0 to FEKO 14.0. In FEKO 7.0, I had no issues meshing scaled or unscaled models. I've attached the model.
 

Would anyone have suggestions for eliminating this error? I must use RL-GO. Also, does Altair keep a listing of FEKO errors with explanations anywhere? Such a list would make the software far more user-friendly and would eliminate a lot of searching through and waiting for answers from forums.

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    User: "Altair Forum User"
    Altair Forum User
    Altair Employee
    OP
    Updated by Altair Forum User

    Hi @riiily,

     

    I've played with your model and got it to mesh:

     

    Steps:

    repair.png.334d2e6e083d4a905b216a9f9b7dba5b.png

    1. Copied the original geometry out of the stitched part;
    2. Used the 'Repair' tools on the primitive objects to change their internal representations and tweak the tolerances
    3. Stitched the parts together again with a tolerance of '0.1'

    I'm not sure why it stopped working between versions.  It might just be that there was a library upgrade that affected the way a tolerance influenced the model's validity when you meshed.  For now, you should be able to continue working anyway.

     

    Kind regards,

    Andries

     

    PS: I used CADFEKO 14.0.432-293039 (x64) from 2016-12-06

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