Modal analysis

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

Hi,

   I have performed modal analysis of part by using EIGRL card image. I have extracted 50 modes. In output file it is showing frequency,eigen value and generalized mass. what is this eigen value. I want to find out natural frequencies but I am confused which are that natural frequencies,frequency column or eigen value column. please reply.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017

    Hi Bhushan,

     

    Frequency will be written in output file. Frequency is calculated using Eigen Value using the Equation Sqrt(EigenValue)/2*Pi

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