Q. Confirm - The load case did not converge. Do you wish to continue iterating? ... message in AutoP


Applies To
Product(s):AutoPIPE,
Version(s):All
Area:Confirm Message
Original Author:Bentley Technical Support Group

Problem:

When analyzing a model the following occurs:

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Confirm
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The load case did not converge. Do you wish to continue iterating?
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Yes   No   Cancel  
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What should I do?

Solution:

Selecting  YES: The program will re-run the analysis for more iterations in hopes of converging below the non-linear tolerances specified.

The default number of iterations is 30, If it was determine that 31-99 iterations enabled the analysis to converge, make this a permanent change by changing the Nonlinear analysis> Maximum iterations settings, as shown below 

Then each time an analysis is performed it will use the updated number of iteration thus reducing likely hood that the message above will be displayed. 

Selecting No: Stops the analysis procedures and presents the following:


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Confirm
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Do you want to see .LOG file for magnitude of unbalance error?
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Yes   No   Cancel  
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Selecting Yes: AutoPIPE Viewer is automatically displayed with the *.LOG for review.

Selecting No: The dialog is closed and user is able to enter the next AutoPIPE command.

Selecting Cancel: The dialog is closed and user is able to enter the next AutoPIPE command.

Additional Comments, Questions, and Answers:

Notes:

Item #1: What to do when "load case did not converge" message appears in AutoPIPE?

a: Model with gaps and friction does not converge after 5 iteration, should it continue to iterate or not?

b: Piping model with Wave does not converge

c: Piping model with beams and soil does not converge

d: Piping model with underwater piping resting on the seabed does not converge

Item #2: How to read a *.LOG file in AutoPIPE?

a: How to solve a friction force problem found in a Log file for AutoPIPE?

Item #3: Does AutoPIPE as a whole have the same type of converging issues as seen by other programs?

Item #4: How to change number of iterations for static analysis?

See Also

Confirm Messages displayed in AutoPIPE

Bentley AutoPIPE