.OP2 file missing

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

I build a mesh in hypermesh (nastran library) and i need to perform a modal analysis i used nastran solver but it didn't generate an .op2 file. No error message is displayed  and i followed all the procedures.Moreover  the op2 file is generated only for few seconds after it disappear. is that any solution of that ? in attach there are my nastran file and the report 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    Hi @francesco aloschi

     

    Not sure if an output request has to be requested to get .op2 file for Nastran solver to write the results. If yes, please let me know the card details and I can check in HM regarding the same.

     

    If no, I would suggest you check with Nastran support. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    i'm giving you the file if you run it in nastran it gives fatal error 9002.2 (error in main bulk data section ).  thanks in advance for your help

    . My goal is modal analysis for that model.

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  • tinh
    tinh Altair Community Member
    edited November 2018

    Could you try running it by Optistruct?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    Hi,

     

    Can you remove V2 on EIGRL card and check if that helps?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    i tried but it doesn't work

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    OptiStruct generates result file (h3d) (well I have to delete few elements as they are not cooperating with the analysis)

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    which type of elements will be deleted ? so what is your suggestion for this problem ? 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    I have deleted RBE2 because of conversion, I would suggest you contact Nastran support. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    i will do it because it doesn't work also without rbe2 connections