1 Reply Latest reply on Feb 11, 2016 6:18 PM by Kelly Rondeau

    FEA problem - Need help with simulation

    Vegard Tveit
    Vegard Tveit Feb 8, 2016 9:38 AM

      Hey

       

       

      I am currently sitting with a model of a robot i am planing to build for a project at school. It has been a while since i have used SolidWorks and i have never really used the FEA part.

       

      I am trying to simulate stresses and the deflection when a force of 500N is applied to the tool part of the robot. But i keep getting errors in SolidWorks when running the simulation. I know that something is not properly defined and would like if someone with some knowledge in the field could give some guidelines/tips on how i can get this simulation running?

       

      I have made a version with the tool modeled up very basic and one that is close to what we want (without the belt system and motor)

       

      https://www.dropbox.com/s/9pnz1h1lth..._tool.zip?dl=0

       

      https://www.dropbox.com/s/4tq019za2h..._tool.zip?dl=0

       

      If the links doesn't work, the SW files are attached in zip files.

       

      Every tip will be greatly accepted as I learn more and more.

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        • Re: FEA problem - Need help with simulation
          Kelly Rondeau
          Kelly Rondeau Feb 11, 2016 6:18 PM (in response to Vegard Tveit)

          There are many contact sets missing in this simulation.

          I have learned not to rely on the global contact set for components that are not touching with a surface to surface contact.

           

          I would start with each of the parts in your assembly and create contact sets on all faces that interact with the next part.

          If you start with the "base_firkant" and work your way to the tool you can be sure you don't miss anything.

          Sub assemblies should behave as a solid part.

           

          You should probably reduce your mesh size also (54mm is pretty big).