Project Simulus is a free technology preview that showcases a number of innovative approaches to mechanical simulation using geometry modification capabilities through embedding Inventor Fusion along with a very intuitive simplification environment to prepare various CAD models for different simulation studies.
You should give this technology preview a try or you won't have a leg to stand on.
The team provided me with an update that I posted to the site. This new version requires a screen resolution of at least 1366 by 768 pixels. This update focuses on the simulation capabilities for Inventor, SAT and STEP-based models by offering: Linear static stress offering a variety of contact types, loading, and constraint options; Modal frequencies and mass participation factors; Steady state thermal offering temperature, heat flux, convection, and radiation type loadings; Thermal-stress coupling; Buckling; and Fatigue. There is also a new read me with the very latest info. You may also want:
Updated Simulation is alive in the lab.