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General Mechanical

General Mechanical

Topics related to Mechanical Enterprise, Motion, Additive Print and more.

Numerical Problem Size limits Student License

    • Joana
      Subscriber

      Hi,


      I'm trying to solve a static structural simualtion test bu the same message is always popping out. 


      I already read about the limitation of student license and my mesh nodes are below 32K as you see on figure.


      But still the simulation does not run.


      Is anything wrong or that I am not doing right?


      Thanks in advance

    • peteroznewman
      Subscriber

      Use Tools, Write Input File and take a look at that.


      The limitation is not that the number of Nodes shown in the Mesh details is < 32K but that the highest node ID number in the entire model is < 32K.


      When you use contact and remote points, the node numbering scheme can jump to much higher numbers than is shown in the mesh details. It may even leave large gaps of unused numbers and push the highest node ID over 32K even on a small model with << than 32K nodes.


      I read in a post somewhere about a command that will force the node numbers to be renumbered, compacting the numbers and reducing the largest node ID number to a value that actually represents the number of node in the model. See if you can find that command in the ANSYS Help system.

    • Joana
      Subscriber

      Many Thanks for your answer.


      However, I am new in Ansys and I don't know if I understood well what you said. 


      What should I look in Input File? How I should resolve the problem considering the input of the file?


      I discover the mesh numbering command to control the numbering. I wrote a limit but as previous, the error is the same, as you can see in the attached figure.



       


       


       


       

    • peteroznewman
      Subscriber

      Follow the directions for creating a Workbench Project Archive .wbpz file and attach it to your reply. I will take a look at it this weekend.


      You can try simplifying your geometry. What are those three button heads?  Do you need them?  

    • Sandeep Medikonda
      Ansys Employee

      Try this:


    • Joana
      Subscriber

      Here is the requested Project Archive .wbpz file https://we.tl/t-gGhq3lXarU


      I tried to start again the project. The first is the one whose problem I posted here.  I did the step SandeepMedikonda told me to do. But the same message poped out again.


      Then I started a new project with the same geometry, a simple automatic mesh, without messing with the connections and so on. And at first sign it worked with just a warning. 


      The button heads are rivets that I was trying to simulate for the fixation of the parts.

    • peteroznewman
      Subscriber

      The first time you meshed, the number of nodes exceeded 32,000.  The second time you meshed, the number of nodes was less than 32,000.  You must have changed a mesh setting the first time.  Sounds like you are on your way.

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