×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

PCG solver question

PCG solver question

PCG solver question

(OP)
I am running a linear static analysis in ANSYS, simple support and 1 lb load.  I am using PCG solver, when I checked the .stat file for "ratio", I see ratio = NAN
Can anyone tell me what it means??
thanks
james

RE: PCG solver question

NAN stands for "Not A Number".  Likely a divide-by-zero incident.  I take it that your model did not achieve an solution?  What is the result if you use the sparse solver?  Were there any other messages like "check for rigid-body motion"?

RE: PCG solver question

(OP)
Hi
the problem only occurs when the model is from Ansys v8 and being used on our remote servers.  When I archive the model out of v8, then in to v6, and finally save it as a v6 db, the model solved fine.
This message (NaN) is with a large model from v8 solved on our remote servers using the PCG solver.
thanks
james80

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources