I am doing modal analysis for some structure using Workbench 21R2.
I need to extract the value of the first (Fd) frequency to a text file (MODE_F.txt) on my computer desk top, so I used the next APDL commands in the solution box :
*GET,Fd,MODE,1,FREQ
*CFOPEN,MODE_F,TXT,C:\Users\MD\Desktop
*VWRITE,Fd
(F18.10)
*CFCLOSE
Unfortunately, the file was created at the required location, but the value inside it was NULL (0.0000000000), despite the deformation of the target modes in the solution box with their frequency values. What would be the reason for that ?
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