Recent content by jm090693

  1. J

    How to calculate the moment of inertia for complex 3D shapes

    Hi, the chain is driven, if the lug was cracking during the turn it would be on the trailing edge of the lug. At the end of the rotation the bottom of the lug is in tension as the lug is wanting to continue rotating on the chain attachment. I need to prove my theory in calculations so i can...
  2. J

    How to calculate the moment of inertia for complex 3D shapes

    Yes, precisely. I am concentrating on the stressful event at the end of the rotation. Here the inertia of the lug means it wants to continue rotating or traveling at the higher corner speed. The leading edge of the chain attachment slows the lug down to the linear speed of the horizontal chain...
  3. J

    How to calculate the moment of inertia for complex 3D shapes

    Hi, Do you mean treat the leading edge of the lug as a rectangular plate, what about everything behind that front plate or is that excluded? Basically i want a value which i can compare with the material properties to prove that this is why they are failing. I will then increase the surface...
  4. J

    How to calculate the moment of inertia for complex 3D shapes

    Hi, I have added some more details here. I did not post it in the homework section as it isn't homework? Thanks, Jack
  5. J

    How to calculate the moment of inertia for complex 3D shapes

    <<<moved from another sub forum, no template>>Hi, I need to calculate the moment of inertia for the component in the attached image so that i can calculate the angular momentum. Is it possible? Overall i am trying to calculate the forces on this lug as it passes around a 3" radius at 2M a...
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