At the core of our experience (25 years), mechanical engineering simulation can be carried out on any number of designs, from a simple bracket to a complete machine like a tractor or a rolling stock wagon. 

Some examples of Ansys capability:

Linear Statics, non linear statics, transient thermal analysis, buckling, non linear material, non linear contact, non linear geometry.

See below for a full list of capabilities and some examples from our Youtube channel.

With modern CPU/GPU full 3D models are now accessible, resulting in higher fidelity results and direct weld size checking.

A few simplified examples of explicit dynamics including a roll over protection system (ROPS), which might be found on a small excavator or similar plant. 

There are numerous simple examples here of what can be achieved with rigid body analysis. Grahical plots of forces over time can be plotted for any joint in the system.