General Mechanical

General Mechanical

2 point lift analysis

    • kaitova


      can somebody advise me why I get this error in 2 point lift if the acceleration goes along the cover? Why does model rotate? I often get this mistake, can't understand the reason behind it. Than you

    • Aniket
      Ansys Employee

      Are you suspending the model from 2 springs? Can you please explain your setup in more detail? What error do you get?


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    • peteroznewman

      Three points have to lie along the gravity vector line for there to be no motion or dynamic rotation of a two-point lift model as you have shown.

      The skyhook point at the top, the center point between the spring attachments and the Center of Mass point all have to be in a straight line parallel to the gravity vector. If any one of those three points are not on the gravity vector line, then there will be a moment that generates motion.

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