Solver Pivot Checking Options In ANSYS Mechanical

Solver pivot errors are one of the most encountered errors in ANSYS® analyses. Sometimes, these errors can abort the solution completely. Here, we explain how to manage the solver pivot errors and checking in ANSYS® Mechanical analyses. 

What Is Solver Pivot Checking In ANSYS®? 

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Sometimes, when you are building your model in ANSYS® Mechanical, you can build the model underconstrained and contacts can be under-defined. These issues can lead to situations of ill-conditioned matrix operations in solver which will produce solver pivot errors. You can manage these errors with Solver Pivot Checking options. 

How To Adjust Solver Pivot Checking Options In ANSYS® Mechanical?

Solver pivot checking option in ANSYS® Mechanical

As you see in the screenshot above, it is very easy to do. Click on ‘Analysis Settings’ then select an option from the ‘Solver Controls’ section. 

  • If you select the ‘Program Controlled’ option, the solver will select the required response. 
  • If you select the ‘Warning’ option, the solver pivot problem will appear as a warning message. And the solution will go on at the solver level. 
  • If you select the ‘Error’ option, the solution will stop in the case of any solver pivot problems. 
  • You can completely off the solver pivot checking if you select the ‘Off’ option. 



It is very easy to do as you see above. 

Do not forget to leave your comments and questions below the solver pivot checking option in ANSYS® Mechanical.

NOTE: All the screenshots and images are used for educational and informative purposes. Images used courtesy of ANSYS, Inc.

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2 responses to “Solver Pivot Checking Options In ANSYS Mechanical”

  1. YUSUF JAMEEL . Avatar

    Thank you friend

    1. MB-Editor Avatar

      You are welcome!

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