2 Replies Latest reply on Sep 2, 2009 7:29 PM by Joe Galliera

    Reaction Forces vs Mass Properties

      Why are the Reaction Forces different from the Mass Properties in the model?



      I have simplified my issue with a very simple problem.


      Part = a solid cylinder with A36 [default] defined [1731.767 lb]



      Material - same as part material

      Force = Gravity - 386.22 in/s^2 [default]

      Restraint = Fixed on Bottom face of cylinder

      Mesh - very refined.

      Reaction forces in y - direction = [1732.4 lb]


      I know that the weight is not much different in this problem - but it is a hugh problem in my simulation analysis - I can give more details on my bigger issue - but first I need to know why these weights are different.