How to use OpenRadioss

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Comments

  • JohnMJohnM
    edited April 14
    Too much fun not to share ;)
  • JohnMJohnM
    edited April 14
    If anyone is handy with OpenRadioss, I'd like to understand how to get an contact to initialize. Legos click in place, and really can't do what I show in video below.
  • cwharpecwharpe
    edited April 14
    @JohnM: Maybe it's my rig, but I'm having trouble opening your gifs. Getting an "un-supported file format" type message. I can see Victor's & Sergio's gifs at the top of this post.
  • VictorVictor
    @cwharpe They're actually MPEGs. Change the extension.

    @JohnM quite right about too much fun!
  • cwharpecwharpe
    edited April 14
    Oh yes! That does it. B)
    Grandson voted for a Lego tractor drop -- if you are taking requests. ;)
  • JohnMJohnM
    @victor, I used to know how to post animations (I must have overwritten that spot in my brain so I could learn openradioss.

    But real question- "real" Legos have that wonderful click that preloads them into place. Is there a way to create this in openradioss? In other words, like a bearing installed in a block and then dropped on the ground to see if it will pop out.
  • JohnMJohnM


  • VictorVictor
    @JohnM I'm not quite sure how Lego clicking works but I suppose you can get part way there with an interference fit and friction. Perhaps it's hard to achieve the right fit due to discretization of the mesh? OpenRadioss's /INTER/TYPE24 which Mecway uses for contact has options for what it does with initial penetration, which might be eliminated by default so you might need to write an interface block that sets it to allow them.

    Or perhaps use a beam for the stud and make the contact between its nodes and the anti-stud. Then I think you can define the gap size in the interfaces, which would be the stud radius so it's perfectly circular - or at least a string of overlapping spheres.
  • JohnMJohnM
    @Victor thanks for the tips, but if you've never clicked a Lego toy together we have bigger issues to discuss here.... :)
  • VictorVictor
    @JohnM sorry, I grew up with Meccano so I might be more helpful if you want to model stabbing yourself with a screwdriver :P
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