Freeze or tie in linear analysis

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

Hello every body here,

this forum is really helpful, just keep the good work !

I know that in general contact problem is non linear BUT i would like to know if it is possible to perform 'linear analysis' with optistruct when the contact interface type is set to freeze or tie ?

 

Thanks a lot.

 

Best regards,

 

GAYE

 

 

 

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2016
    Altair Forum User said:

    Hello every body here,

    this forum is really helpful, just keep the good work !

    I know that in general contact problem is non linear BUT i would like to know if it is possible to perform 'linear analysis' with optistruct when the contact interface type is set to freeze or tie ?

     

    Thanks a lot.

     

    Best regards,

     

    GAYE

     

     

     

     

     

    Hi Gaye,

     

    Using 'Freeze' contact in OptiStruct is no different than having the parts of your model connected at common nodes.  Internally OptiStruct creates a bunch of constraint equations to tie everything together.  I frequently run linear simulations using 'Freeze' contact without issue.

     

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2016

    Thanks for your answers :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />

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