submarine pressure hull results issue

prajwin.a23
prajwin.a23 Altair Community Member
edited November 2021 in Community Q&A

I have followed every step mentioned in the pdf. file but I am not able to get the accurate results .

I am not sure whether the values are proper but i dont feel it is correct.

 

and why have they constrained XY direction end nodes to x direction? is it because of symmetry or to fix the component?

<?xml version="1.0" encoding="UTF-8"?>disp.png

<?xml version="1.0" encoding="UTF-8"?>hm.png

Unable to find an attachment - read this blog

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Answers

  • Pranav Hari
    Pranav Hari Altair Community Member
    edited July 2020

    Hi prajwin.a23

     

    Which pdf are you referring to? Can you please specify it

     

     

     

  • prajwin.a23
    prajwin.a23 Altair Community Member
    edited July 2020

    Hi 

    It is https://www.altair.com/training/hmquickstart_2019/ch4/Ex_4a.pdf

  • Koushik Chandrashekhar_21806
    Koushik Chandrashekhar_21806
    Altair Employee
    edited July 2020

    Hi Prajwijn,

     

    It looks like your Boundary conditions are incorrect. So, your displacement value is absolutely incorrect. Kindly follow the instructions given in the exercise carefully. We cannot tell you the answers since it is an examination. Many other students are able to solve it and got the certificate. 

  • prajwin.a23
    prajwin.a23 Altair Community Member
    edited July 2020

    Hi Koushik,

    I have followed each and every step very carefully ,but still not able to get the results properly.

    Can you tell me why they have constrained only X direction traslation and not others in the image shown?

     

    Full Pdf in : https://www.altair.com/training/hmquickstart_2019/ch4/Ex_4a.pdf

     

    <?xml version="1.0" encoding="UTF-8"?>Untitled.png

  • Koushik Chandrashekhar_21806
    Koushik Chandrashekhar_21806
    Altair Employee
    edited August 2020

    Hi Prajwin,

     

    Nothing is wrong in the PDF. The problem is that you are unfortunately not able to follow the steps correctly while many students are able to.

     

    I had already told you to follow the instructions carefully so that you will get the right results.

     

    Kindly make sure you select the nodes manually at the end of the ribs for the 3rd boundary condition carefully. This is required as it wont be selected initially by cursor dragging.

  • prajwin.a23
    prajwin.a23 Altair Community Member
    edited August 2020

    Hi Koushik,

     

     I  have not made any mistakes in third boundary condition , I tried it again now which gave me the same results .

    I request you to check the following files. I am sure that I have not made any mistakes after 1 month of attempts so I request you to please verify the load collectors of my file by yourself.

    <?xml version="1.0" encoding="UTF-8"?>Untitled.png

    <?xml version="1.0" encoding="UTF-8"?>Untitled2.png

    <?xml version="1.0" encoding="UTF-8"?>Untitled3.png

    Unable to find an attachment - read this blog

  • Koushik Chandrashekhar_21806
    Koushik Chandrashekhar_21806
    Altair Employee
    edited August 2020

    Hi Prajwin, kindly share the .fem file

  • prajwin.a23
    prajwin.a23 Altair Community Member
    edited August 2020

    Hi Koushik, 

    I apologize for asking too many things . I have found the culprit which is the model file.

    Instead of using the file from the examination section , I used the file from learning section which is not proper.

    I have got the answer.

     

  • Amith Anoop Kumar
    Amith Anoop Kumar Altair Community Member
    edited November 2021
    prajwin.a23 said:

    Hi Koushik, 

    I apologize for asking too many things . I have found the culprit which is the model file.

    Instead of using the file from the examination section , I used the file from learning section which is not proper.

    I have got the answer.

     

    Hey @prajwin.a23 if you dont mind can you share the final result file 

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