Srikanth

Srikanth K
Srikanth K New Altair Community Member
edited October 2020 in Community Q&A

I am doing topology optimization for maximizing the frequency of a desired mode. I have used required cards PARAM,MFILTER,0.7 ; PARAM,MODETRAK,YES  ; PARAM,TRAKMETH,0. Still the solver is not targeting the specified mode for optimization.  

 

PARAM,TRAKMETH,0 corresponds to Mass cross-orthogonality check. I have used normalization method 'Mass' in EIGRL card. Is that the issue for improper mode tracking?

If I delete Mass normalization will the optimization lead in right direction?

Can I try trackmeth 1 or 2 alternately?

 

Please let me know your thoughts.

 

Thanks

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Answers

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

    Can you try new mode tracking approach which is available for 2017.0 or higher version.

    Unable to find an attachment - read this blog

  • Srikanth K
    Srikanth K New Altair Community Member
    edited January 2020

    Hi Rahul,

     

    Thanks for suggesting alternate approach. 

     

    So the conclusion is 'the mode tracking methods available in Optistruct are not tracking the mode properly', is that correct?

     

    Thanks

    Srikanth

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