Hi,

I try to find out how much deformation a machine part will have when it is hoisted up with cables. I understand that this will be a dynamic process. But with some assumptions I think I will be able to derive the necessary information using an static FEM model.

The problem that I'm facing is what fixtures I can use to mimic the hoisting cables. In the attached picture the cables are drawn in red. I started with using the "fixed geometry" fixture at the points that the cables are attached to the machine part, (green arrows), however I do not think this will mimic the real behavior.

What Can I do to realistically take reaction forces that the cables exert on the part into account?

You could potentially use an advanced fixture using axis' to the point at which the cables meet at the top: Use Reference Geometry; Select a vertex; Select the Axis. At least this is what I would try. You can then list resultant forces at each of the vertices. (See Images)

Alternatively I guess you could model the cables and set them as beams, and then trusses.

Olly