Cyclic Symmetry Modal Analysis

omerugursimsek
omerugursimsek New Altair Community Member
edited October 2020 in Community Q&A

Hi everyone,

 

I have been performing cyclic symmetric modal analysis using EIGRL card. I would like to have some results belongs to a certain Nodal Diameter.I am an Ansys user as well and it is possible to define harmonic indexes in order to have natural frequencies for various nodal diameters. How does it work in  optistruct? How can  I have natural frequencies at different Nodal diameters.

 

Thank you

 

Ugur

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2019

    There is an alternative approach that you can use to run the harmonic analysis using a cyclic symmetry model. At the each edge of the sector you can apply Periodic Boundary condition.

    Please refer to the attached material from help.

    Unable to find an attachment - read this blog

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