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Cyclic Symmetry Analysis in NX NASTRAN

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Rodolp21

Student
Oct 18, 2023
1
Hello, I'm a mechanical student.

I'm doing a cyclic symmetry analysis using NX NASTRAN. When I compare the eigenvector between the fan sector and the complete structure, I get an error. My model is not convergent.
But I'm working on hexahedral elements and when I increase or decrease my interpolation polynomial, the value of the frequency doesn't vary.

Could you give me some advice on this issue?

Yours sincerely , Rodolph21
 
 https://files.engineering.com/getfile.aspx?folder=dfd0b4b4-80ac-4ea7-be3c-489ccb8d83bf&file=Full_structure_and_fan_sector.zip
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