Different setting between version 14 and 2017

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

I already create simple model of version 14 and 2017 .

version 14 is OK .

version 2017 is fail. 

 

 

I already compare in FEM file.

I found SPC control card  have set F  in Ver. 2017.   (ex. SPC            1    2922  123456   F)

 

but  0.0 in ver. 14                                                       (ex .SPC            1    2922  123456   0.0   )

 

 

 

I' m sure what is problem for this situation . but when i change F to 0.0 , the result is OK .

Could you please tell me how to solve this problem instant  change manually .

 

 

 

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Answers

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited October 2017

    Maybe a bug of Optistruct's FE output template?

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2017

    Hi,

     

    I tried in Student edition and also on commercial version of 2017. I am not able reproduce this issue.

     

    Do you have any continuation subcases in your model?

  • tinh
    tinh Altair Community Member
    edited October 2017

    Could you edit card an SPC and confirm value after 123456 is F or 0.0?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2017

    @Prakash  NO. just  1 subcase

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2017
    Altair Forum User said:

    Could you edit card an SPC and confirm value after 123456 is F or 0.0?

    yes , I must edit this value . but i  am not understand when i do the same method with version 14  i don't found this problem.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2020
    Altair Forum User said:

    Hi,

     

    I tried in Student edition and also on commercial version of 2017. I am not able reproduce this issue.

     

    Do you have any continuation subcases in your model?

    Hi ,

     

    I try many but i found same problem . i just set T joint and fix constraint 2 way  and applied force 1 other way .

    so I just set 1 subcase 

    Unable to find an attachment - read this blog

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2017

    Hi @sagpichest

     

    You get this because Fixed option is checked in constriants panel. Uncheck it and try again. 

    <?xml version="1.0" encoding="UTF-8"?>Fixed.PNG

  • tinh
    tinh Altair Community Member
    edited October 2017

    @sagpichest:D/emoticons/default_biggrin.png' srcset='/emoticons/biggrin@2x.png 2x' title=':D' width='20' /> do not fiddle with anything you don't know

     

    Hi @Prakash Pagadala , what is 'fixed' option used for? I didn't find it in Optistruct reference guide v14

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2017

    @tinh

     

    SPC with Fixed is used in relation with CNTNLSUB for nonlinear subcase to retain deformed boundary from previous subcase.

     

    If you try to run when SPC is defined with fixed ON, OptiStruct fails with an error. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2017
    Altair Forum User said:

    @tinh

     

    SPC with Fixed is used in relation with CNTNLSUB for nonlinear subcase to retain deformed boundary from previous subcase.

     

    If you try to run when SPC is defined with fixed ON, OptiStruct fails with an error. 

    This is different point between V14 and 2017 right ? 
    because i don't see this function in V.14

     

    thanks and best regards,

    Sagpichest S.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2017

    Hi @sagpichest

     

    Yes. Fixed in constraints panel is not available. 

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