Help with error 14

Shay
Shay Altair Community Member
edited May 2022 in Community Q&A

Hi i am trying to setup a problem involving a turbine blade where the surface of the component is being assigned non design and the internal is part of the design region. I have setup the problem similar to a previous case which converged successfully but I am having trouble locating the issue for this trial. any help addressing the issue will be much appreciated. I have attached the hypermesh file. image

Best Answer

  • Adriano A. Koga
    Adriano A. Koga
    Altair Employee
    edited May 2022 Answer ✓

    check if your components are pointing to the correct property, as it seems like your property (#2) is not correctly defined.

    Check also if the 'defined' checkbox is marked or not.

     

    Also check if you are not changing the correct type of your property: i.e: using a PSHELL property into a CTETRA component.

Answers

  • Adriano A. Koga
    Adriano A. Koga
    Altair Employee
    edited May 2022 Answer ✓

    check if your components are pointing to the correct property, as it seems like your property (#2) is not correctly defined.

    Check also if the 'defined' checkbox is marked or not.

     

    Also check if you are not changing the correct type of your property: i.e: using a PSHELL property into a CTETRA component.

  • PaulAltair
    PaulAltair
    Altair Employee
    edited May 2022

    check if your components are pointing to the correct property, as it seems like your property (#2) is not correctly defined.

    Check also if the 'defined' checkbox is marked or not.

     

    Also check if you are not changing the correct type of your property: i.e: using a PSHELL property into a CTETRA component.

    Yes, that is it, as Adriano says, your 'non design' part has a shell property assigned, should be solid property.

    Also, it isn't really the 'surface' just the outer layer of tetras, in some regions it is actually the whole thickness of the part, is that intentional? (your design region is relatively small)

  • Shay
    Shay Altair Community Member
    edited May 2022

    Yes, that is it, as Adriano says, your 'non design' part has a shell property assigned, should be solid property.

    Also, it isn't really the 'surface' just the outer layer of tetras, in some regions it is actually the whole thickness of the part, is that intentional? (your design region is relatively small)

    So I have changed the non-design to solid property and created a 2D tria mesh to act as the surface of the guide vane.

    The design region has stayed as a solid and I have increased the size of the mesh for the time being but will refine later once I can fix this problem. 

    I am now receiving this error message.

    Please let me know if you can spot the problem. all my properties are defined and the meshes have been assigned to the correct components, I am unsure of where the problem is. 

    image

  • PaulAltair
    PaulAltair
    Altair Employee
    edited May 2022
    Shay said:

    So I have changed the non-design to solid property and created a 2D tria mesh to act as the surface of the guide vane.

    The design region has stayed as a solid and I have increased the size of the mesh for the time being but will refine later once I can fix this problem. 

    I am now receiving this error message.

    Please let me know if you can spot the problem. all my properties are defined and the meshes have been assigned to the correct components, I am unsure of where the problem is. 

    image

    You have not assigned the Shell property to your shell (tria) elements (they still reference the solid property)

    Also, your shell property needs to have a thickness assigned to it

    And finally, you need to create a topology desvar for the solid

    Attached .fem runs (I made shell thickness = 1.0), I don't have 2021 installed any more so my HM file wouldn't load for you but you can use this as guide to fixing yours

     

     

  • Shay
    Shay Altair Community Member
    edited May 2022

    You have not assigned the Shell property to your shell (tria) elements (they still reference the solid property)

    Also, your shell property needs to have a thickness assigned to it

    And finally, you need to create a topology desvar for the solid

    Attached .fem runs (I made shell thickness = 1.0), I don't have 2021 installed any more so my HM file wouldn't load for you but you can use this as guide to fixing yours

     

     

    Thank you for your help, Paul and Adriano. I have finally got my simulation to run again. I guess I have overlooked a few steps while setting up my problem.