ERROR # 2782 Optistruct

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

Hi i have got the following error. I had run FRF on the same model (large) previous week for same frequency range. It was fine. This week for another FRF analysis for the same frequency this is showing this error. Please help  

*** ERROR # 2782 ***

  32bit integer overflow occurred in reduced order model processing. This is

  usually because of the higer than default value of AMPFFACT used in analysis.

  If not, it is simply due to too many eigenvalues located in the requested

  frequency range. Reducing the upper frequency bound in EIGRA card is likely

  to make AMSES go through. This issue will be resolved in later version.

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    Hi @Techie

     

    What is the version of HyperWorks you are using?

     

    Can you run the same with EIGRL (LANCZOS method) instead if you are fine with it?

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2018

    Hi Prakash

     

    Thanks for replying

    If i try running using EIGRL its taking more than 12 hours and its still running.

    I had run the same file for the same kind of analysis it completed in 1 hr 12 mins but i tried to apple GE (Structural damping) in properties for 2 of the components our of the whole assemble and its showing me this error. I even reduced the freq range and tried eigrl with reduced freq range. if i use eigra its showing error. if i use eigrl its taking forever. Am using Hypermesh 14.0

     

    Thanks

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