I have been at this assembly for a couple of weeks. I have turned off "Large displacement" and "Compute free body forces". I have turned on "Use soft spring to stabilize model".
Usually, I get a Large Displacement error, I click yes, and it gives me a displacement result, and I bond the displaced object. Now, I only get the "Numerical difficulties" error, and no Large Displacement error. What do I do now?
Thanks,
1st. Large displacement is not an error, it is a warning.
2nd. The reason that you do not see it again is its option has got checked in simulation properties. (please see the image below) Check that box off and it will appear again when you run the simulation and will let you to choose either to proceed with Small Displacement or Large Displacement.
The following documents provide you with further insight into large displacement.
2015 SOLIDWORKS Help - Large Displacement Solution
Hope it helps.
- Siavash