Damping

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

Hi

If is apPlied SDAMPING (no CRIT) as law with a value of 0.08 in a certain range only 

and param, G 0.08...what happens? in the defined range of frequency is considerend only SDAMPING or G.

 

Regards

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hi,

     

    If you are not using Modal transient, modal freq or complex eigenvalue analysis types then SDAMPING is not considered. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    the analysis is a modal frequency response.

    SDAMPING is applied for a certain range of frequencies. So in this range is considered only SDAMPING or is added/considered the parameter G?

    Regards

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hi,

     

    I tried with SDAMP with TYPE set to CRIT and with G and my finding is that the factors from both SDAMP and G are considered. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Thanks, I did the same thing. It's really dangerous thing, this means that if you want use SDAMPING only for a specific range, you can't use param,G for the others.

    Or if you have different loadcase you have to define SDAMPING for each loadcase

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Agree...

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