Skid analysis using Mecway/Salome/Calculix

SergioSergio
After facing lot of issues using beams and shells, I decide to model my skid with solid hexa elements, took a little of work and coffe, but now I´m very proud of the work done. The model has about 200.000 nodes and 130.00 elements, most of them very well shaped hexas an some wedges in the eyebolt that was the only component meshed automaticly. For almost all the profiles I have meshed carefully the sections in Salome using quads, and then export to Mecway (using the new library feature), where i extrude to the right dimention and after positioned.

Material es a very basic steel, and load was the weight of all component including piping and valves, using 2g to take in count the lifting operations.













Comments

  • Famous_MortimerFamous_Mortimer
    Nice work how long did it have to run for the solution?
  • SergioSergio
    edited March 2019
    It takes less than one minute in a Xeon with 18 cores and 32 GB of ram (and ssd disk), maybe two on an old laptop with i5 and 6gb. In the Xeon I have a good Quadro vídeo card, but even that it cannot show the result plot at maximun resolution setted in Mecway.
  • prop_designprop_design
    very nice work sergio
  • 65mustang65mustang
    Good work Sergio.

    How did you connect the various beams? Did you use TIE in Calculix?
  • SergioSergio
    Hi 65 Mustang, the connections were done with TIE, with very small position tolerance (0.1 mm)
  • 65mustang65mustang
    Thanks for the info Sergio.
  • Famous_MortimerFamous_Mortimer
    Would you be willing to share the .liml file?
  • SergioSergio
    No, I can't. Sorry
  • Famous_MortimerFamous_Mortimer
    I am working on a specialized support frame and I really like the way you meshed the beams. Was this done in Salome?
  • SergioSergio
    Yes, as I said before in the post, was meshed with Salome. Normally I mesh one face of the perfil (or half/quarter in case of having simmetry), then import in a empty Mecway file, do the mirrowing if is needed and apply material and save in the Mecway template folder for being able to re-use as long as I need.


  • MishalMishal
    Hi Sergio

    Out of curiosity why didn't you just use beam elements for the model, and design all the structural members and lugs using design codes?
  • SergioSergio
    Mishal, the customer ask for 3D elements and FEA checking.
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