After the analysis shape change

Aslan_20882
Aslan_20882 Altair Community Member
edited October 2020 in Community Q&A

Hı everyone,

 

My structure has very less weight and size.

I want to lattice optimization and  I do. But shape of my structure is changing. shape is very thin.

I think this can be due to the weight.

Can you help me?

Thank you.  

 

First picture my structure, Secondly figure at the end of the analysis.image.png.ac232869f0ee224e1a083c85e3169c37.png

<?xml version="1.0" encoding="UTF-8"?>image.thumb.png.74fbb1fcb662531c335de95db4008f64.png

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2018

    Hi @Aslan

     

    Is this happening after analysis or after optimization?

     

    Looks like there is some problem in the model. Can you please check the material, load, etc...?

  • Aslan_20882
    Aslan_20882 Altair Community Member
    edited October 2018

    Hı @Prakash Pagadala
     

    Sorry, this is happening after optimization.

    If you can share your e-mail address, I can send you the .fem file.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2018

    @Aslan

     

    Please use this link to share the file, securely https://ftam1.altair.com/filedrop/~Ce4god

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2018

    Hi @Aslan

     

    I ran the analysis on the base file and I see the same with that.

     

    Can you please check the units, material and check if there are any modeling errors?

  • Aslan_20882
    Aslan_20882 Altair Community Member
    edited October 2018

    Hı @Prakash Pagadala

    I checked units, materials. image.png.8f10ea0a109a62eeeac5b2f0de95bbb8.pngimage.png.5c13d4dc8565a3deeff483949035e180.png

     

    All units are the same. and I don't understand what is the problem. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2018

    Can you check the model units?

     

    The total length of the model is ~9e-2 mm!!???

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

  • Aslan_20882
    Aslan_20882 Altair Community Member
    edited October 2018

    Thank you @Prakash Pagadala ,

     

    I checked my model. Actually, 90mm in Solidworks, but 9e-2 in hypermesh. Why is it changing?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2018

    Could be because of the scale factor. 

     

    You can scale the mesh using Tools page>> Scale

  • Aslan_20882
    Aslan_20882 Altair Community Member
    edited October 2018

    Thank you for helping, @Prakash Pagadala 

     

    I have tried, but I could not create the correct geometry.

    Sorry, could you please explain more detail?

     

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2018

    Select all elements in Scale panel, Provide a scale factor of 1000 (9e-2 to 90) in all directions and scale the elements. Apply loads and BCs and try again

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