Learning Forum

[Elelwi]

Hello all,

I am trying to accomplish static structural simulation on my morphing wing components

I have got an error. I have used different mesh size for wing components.

Meshing is done, but when I start the simulation it doesn't solve, and I got this error " An unknown error occurred during the solution. Check the Solver Output on the Solution Information object for possible causes".

And I got this warning "At least one body has been found to have only 1 element in at least 2 directions along with reduced integration. This situation can lead to invalid results or solver pivot errors. Consider changing to full integration element control or meshing with more elements. Offending bodies can be identified by Right-clicking in the Geometry window and choose Go To -> Bodies With One Element Through the Thickness. Refer to Troubleshooting in the Help System for more details.

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[Ashish Khemka]

nnPlease see if the discussions on the following post helps:nnRegards,nAshish Khemkan

[Elelwi]

Thank you for your answer. I follow what these people suggest but I got this error.nnAn unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.n25%--Static Structural (A5)                                                  nnn SET PARAMETER DIMENSIONS ON _WB_PROJECTSCRATCH_DIRn TYPE=STRI DIMENSIONS=     248       1       1nn *** ERROR ***                          CP =      0.422  TIME= 18:58:55n Unknown expression in input line.                                      nn *** ERROR ***                          CP =      0.422  TIME= 18:58:55n The above error occurred processing field= \25                         n Line= *SET,_wb_ProjectScratch_dir(1),                                 n 'C:\Users\User\Desktop\ANSYS_Simulation_OPWing\25%\25%-1\_ProjectScratc n ch\Scr1ACC\'.                                                          nn *** ERROR ***                          CP =      0.422  TIME= 18:58:55n Unknown expression in input line.                                      nn *** ERROR ***                          CP =      0.422  TIME= 18:58:55n The above error occurred processing field= \25                         n Line= *SET,_wb_ProjectScratch_dir(1),                                 n 'C:\Users\User\Desktop\ANSYS_Simulation_OPWing\25%\25%-1\_ProjectScratc n ch\Scr1ACC\'.                                                          nn PARAMETER _WB_PROJECTSCRATCH_DIR(1) = C:\Users\User\Desktop\ANSYS_Simulation_OPWing\25%\25%-1\_ProjectScratch\Scr1ACCnn NUMBER OF WARNING MESSAGES ENCOUNTERED=         0n NUMBER OF ERROR  MESSAGES ENCOUNTERED=         4nn

[peteroznewman]

nTry renaming 25% to 25pct to get rid of the % character.nI wonder if the name is the cause of the problem.n

[Elelwi]

Hi peteroznewmannThank you very much for your answer. I rename it to 25pct as you suggest but I still get the error.nnn DO NOT WRITE ELEMENT RESULTS INTO DATABASEnn *GET _WALLSTRT FROM ACTI ITEM=TIME WALL VALUE= 18.8780556   nn TITLE= n 25pct--Static Structural (A5)                                                nnn SET PARAMETER DIMENSIONS ON _WB_PROJECTSCRATCH_DIRn TYPE=STRI DIMENSIONS=     248       1       1nn *** ERROR ***                          CP =      0.406  TIME= 18:52:41n Unknown expression in input line.                                      nn *** ERROR ***                          CP =      0.406  TIME= 18:52:41n The above error occurred processing field= \25                         n Line= *SET,_wb_ProjectScratch_dir(1),                                 n 'C:\Users\User\Desktop\ANSYS_Simulation_OPWing\25%\25%-1\_ProjectScratc n ch\Scr1CDD\'.                                                          nn *** ERROR ***                          CP =      0.406  TIME= 18:52:41n Unknown expression in input line.                                      nn *** ERROR ***                          CP =      0.406  TIME= 18:52:41n The above error occurred processing field= \25                         n Line= *SET,_wb_ProjectScratch_dir(1),                                 n 'C:\Users\User\Desktop\ANSYS_Simulation_OPWing\25%\25%-1\_ProjectScratc n ch\Scr1CDD\'.                                                          nn PARAMETER _WB_PROJECTSCRATCH_DIR(1) = C:\Users\User\Desktop\ANSYS_Simulation_OPWing\25%\25%-1\_ProjectScratch\Scr1CDDnn NUMBER OF WARNING MESSAGES ENCOUNTERED=         0n NUMBER OF ERROR  MESSAGES ENCOUNTERED=         4n