topic Re: Fusion 360 Simulation Stuck in Fusion Support Forum

Fusion 360 Simulation Stuck

agepfert067 — Fri, 28 Jul 2023 01:01:20 GMT

Trying to run a simulation on Fusion 360 but it remains stuck at 1% (5% in the "Solving" when you break it down). I have updated Fusion 360, tried it online, tried it on multiple computers, and tried to save the file as a new file name and re-solve. My internet has been stable while I have been running the simulations.

Re: Fusion 360 Simulation Stuck

henderh — Tue, 01 Aug 2023 23:48:26 GMT

Hi @agepfert067,
Could you attach the diagnostic log file?

Restart Fusion
Open the design and send a solve for the study
Go to the Help pull-down > Support and Diagnostics > Diagnostic Log Files

The log file might indicate the problem causing the solve to be stuck.
Also, I'm curious if this is happening with a particular design, or does a solve get stuck for any simulation?

Best regards,

Re: Fusion 360 Simulation Stuck

agepfert067 — Wed, 02 Aug 2023 01:24:11 GMT

It is happening with one specific design but I am only trying to run one specific simulation. The design has very complex geometry but I am unable to simplify the design or mesh. I mentioned earlier that it stalls at 5% but occasionally it will "fail" in the receiving stage of the simulation but I am not able to see what fails.

Re: Fusion 360 Simulation Stuck

henderh — Wed, 02 Aug 2023 14:59:19 GMT

Thanks for providing the log files. The document name is called "Femur" and I'm guessing that the model is a 3D scan of bone that has a very high number of face facets from a mesh body? If so, it is recommended to convert the mesh body to a TSpline to greatly reduce the number of faces before using it in simulation.

Re: Fusion 360 Simulation Stuck

agepfert067 — Wed, 02 Aug 2023 15:24:02 GMT

Yes that is correct. Does converting to the TSpline alter the geometry of the design?

Re: Fusion 360 Simulation Stuck

henderh — Wed, 02 Aug 2023 23:25:53 GMT

In theory it shouldn't alter the geometry significantly, although I'm not familiar enough with TSpline conversions to be 100% certain this is true in every case.
You could insert the mesh body superimposed on the TSpline body for a visual check.