Welcome to 3DCADForums

Join our CAD community forums where over 25,000 users interact to solve day to day problems and share ideas. We encourage you to visit, invite you to participate and look forward to your input and opinions. Acrobat 3D, AutoCAD, Catia, Inventor, IronCAD, Creo, Pro/ENGINEER, Solid Edge, SolidWorks, and others.

Register Log in

Error message in Generative Structural Analysis


New member
Hello all! New here but I hope I can get some help.

I designed a tire and wanted to see how it would deform under a force and looked into the Generative Structural Analysis. Most of the tutorial I could find were for very simple models. When I attempted to do this on my own I kept getting an error message even after trying multiple different approaches to restrain the model. The error message reads:

"Factorized matrix computation.
Singularity detected in rotation (pivot too small)
Possible reasons: missing restraint or connection specifications.
Display rotational vectors to diagnostic the problem."

I found on this forum someone with this problem but the advice given wasn't very clear as what was submitted was vague. So I made a short video showing what exactly I have and hopefully someone can see where I am going wrong. Here is the thread that I found if it will be any help.

Here is the Video I made

Thank you! :)


New member
Hi all,

I have the same problem and would like to get solution at my construction.
Please anybody help me ASAP. Thank you!