Dear all I'm trying to interface ansys with matlab for optimization purpose . and for that i use this line in matlab to run ansys
!"C:\Program Files\ANSYS Inc\v145\ansys\bin\winx64\ANSYS145.exe" -b -i C:\Users\kouider\Desktop\optim\ansys_code_parallel.txt -o C:\Users\kouider\Desktop\optim\\ansys_out.txt
The command successfully run ansys but when it comme to /solu and Postprocessing it stopped
can anyone help me solve this issue ?
Hi Bendine,
I am not sure how much scene i m making or how helpful my answer will be.
There can be many reason fir it, first one some how MATLAB version "B" dont work well. but in ur case if solver is running the it might be not the case.
Second thing comes to my mind is that your FEA model might be heavy and u should Increase memory and core requirement's. Give a try by increasing the memory and core for your simulation , an example is below.
run= dos( 'SET KMP_STACKSIZE=2048K & "C:\Program Files\ANSYS Inc\v162\ansys\bin\winx64\ANSYS182" -p aa_r -np 6 -b -dir "C:\work\Practice\matlab_blade_auto" -m 2048 -i "C:\New folder\in_apdl.txt" -o "C:\New folder\out_apdl.txt" ');
I hope it will be of some some use. There can be other factors too, give a check to your APDL script, might some issue in /solu section,
You can test it by using ANSYS Mechanical APDL Product Launcher, and use ur APDL script.
Regards
PM
The command you mention appears to me "not complete".
I add next two suggestions which have available their Matlab codes.
For a simple way to call Ansys from Matlab see:
Conference Paper TECHNIQUES ADOPTED IN INTEGRATING STRUCTURAL ANALYSIS WITH N...
For a more advanced way see: N. Teunisse. Interactive Link Between MATLAB and ANSYS. https://www.mathworks.com/matlabcentral/fileexchange/53032-interactive-link-between-matlab-and-ansys, 2015
Hope it may help. At some point consider to return here with your feedback.
Hi Bendine,
I am not sure how much scene i m making or how helpful my answer will be.
There can be many reason fir it, first one some how MATLAB version "B" dont work well. but in ur case if solver is running the it might be not the case.
Second thing comes to my mind is that your FEA model might be heavy and u should Increase memory and core requirement's. Give a try by increasing the memory and core for your simulation , an example is below.
run= dos( 'SET KMP_STACKSIZE=2048K & "C:\Program Files\ANSYS Inc\v162\ansys\bin\winx64\ANSYS182" -p aa_r -np 6 -b -dir "C:\work\Practice\matlab_blade_auto" -m 2048 -i "C:\New folder\in_apdl.txt" -o "C:\New folder\out_apdl.txt" ');
I hope it will be of some some use. There can be other factors too, give a check to your APDL script, might some issue in /solu section,
You can test it by using ANSYS Mechanical APDL Product Launcher, and use ur APDL script.
Regards
PM
Thank you miguel and prakul will try your suggestion and return with feedback as soon as possible
K
It is worth to be mentioned here that my apdl code is working perfectly when i excut it from ansys and i use this macro to store the results in txt file
/POST1
*CFOPEN,VLG,txt
*DO,i,1,9
SET,next
*get,Up1,NODE,1,VOLT
*VWRITE,Up1
(F10.5)
*ENDDO ! i
*cfclos
FINISH
I changed the syntax according to your suggestion but no results were printed in the text file , and when i check the error files i found that:
(F10.5) is not a recognized POST1
I have not checked myself but two possible suggestions are:
1) Check if you need to increase the width of the number inside parenthesis
2) if in the GUI check if the *VWRITE command should be by reading with /INPUT, or Read input from, instead of copying the code to the prompt.
Hope it helps.
Thank you Miguel for the suggestion actually i use input file and yes i tried alot of format but no luck . What is really wired that the code work perfectly and gaves the results text file when i run it from ansys but when i run it from matlab it said that the format isnt correct
Thank you claudio
I will go through your suggestion and return with feedback about the results
Dear all
I tried all the suggestions but no luck till now .the whole code i used is in the attached file could you please try it
Thank you again Claudio
i tried u last suggestion but the same problem appear no results were printed in the txt results
Dear Bendine,
You said that the code works just fine when you run it through ANSYS. If that is the case, why don't you run ANSYS in batch mode (Starting ANSYS from command line in windows) and run the .bat file from MATLAB. Using this method eleminates the compatibility problem you may have right now with your setup. Hope this suggesion helps.
Thank you sooo much for all of you guys , i finaly found the answer , Rather than calling *VWRITE inside DO loop, i saved the result into a single matrix a then call VWRITE outside the DO loop. using this code
/POST1
*DIM,Up1,,9
*DO,i,1,9,1 !! DO LOOP
SET,next
*get,Up1(i),NODE,1,VOLT
!*get,ff(i),fsum,0,item,fx
*ENDDO
*cfopen,volte,txt
*vwrite,Up1(1),,
(F15.5)
!(f12.2,2x)
*cfclos
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