Modal Analysis

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

Hello,

 

I am running modal analysis on a helicopter model that has both 2D and 3D elements. I created rigid links and applied mass at the middle node (to represent the lithium ion batteries) however I am not sure which card image to assign for the rigis links and the mass. I tried PMASS and got an error. When I take out the rigids and the masses, I can run the analysis without problem.

 

Thank you in advance,

 

Muge

 

 

 

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi @Muge Candogan

     

    Can you share the error message?

     

    You don't need any cards for rigid links. But you need a PMASS property for MASS (CMASS1) element. 

     

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