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October 17, 2024 at 12:49 pmHongtian CHENSubscriber
When I did a random vibration analysis, after using the code below to draw the psd graphic in apdl, it works well:
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PSDCOMPSDRES,DISP,ABS           !PSDRES, Lab(DISP/VELO/ACEL), RelKey(REL/ABS/OFF)PSDRES,VELO,ABSPSDRES,ACEL,ABSSOLVEFINISH/POST26STORE,PSD,5NSOL,2,NODE0,U,XRPSD,3,2,,3,1/SHOW,JPEGPLVAR,3which mean I use /POST26 in the same file, it works well for a spectrum analysis.ÂHowever, when I do the part of solution in a file named "Pipe_3A_Transient_Analysis", and use the command "SAVE" to finish the solution part and save the file:...PSDCOMPSDRES,DISP,ABS           !PSDRES, Lab(DISP/VELO/ACEL), RelKey(REL/ABS/OFF)PSDRES,VELO,ABSPSDRES,ACEL,ABSSOLVEFINISHAfter that, in a new file named "Pipe_4_Post26_TimeHistory", I use the command below to reload the results of  Pipe_3A_Transient_Analysis:FINISH/CLEAR/FILNAME,Pipe_4_Post26_TimeHistory,1/TITLE,HAHA/REPLOT/COM,STRUCTURAL/UNITS,SI*AFUN,RADPI = 3.14159265354RESUME,'Pipe_3A_Transient_Analysis','db','.'/POST26FILE,'Pipe_3A_Transient_Analysis','rst'STORE,PSD,5Âthe error occurs, in my opinions, it means the .rst file could not be open successfully.ÂBecause when I do the same operation using the GUI, after clicking on the "TimeHist Postproc", the second GUI occurs, which corresponds to the command "FILE,'Pipe_3A_Transient_Analysis','rst'.However, after that, for a spectrum analysis, there is another GUI:which has not a corresponding command to make a choice. I think it is a bug, what do you think, and are there any way to solve this question with an APDL command???(if I click OK with the GUI method at this moment, it can enter the TimeHist Postproc module, and the command like STORE,PSD/NSOL,.../ESOL,... works well after that, but I want to just use the APDL command, it seems that only the command /POST26 and FILE,'Pipe_3A_Transient_Analysis','rst' could not enter the TimeHist Postproc module correctly for the spectrum analysis case. )
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October 18, 2024 at 1:19 pmdloomanAnsys Employee
Personally, I try to avoid using the APDL gui for anything PSD related. It seems you already know the commands. Just issue them in batch mode and if you want to capture a plot use /show,png. The gui isn't being maintained, so even if there is a bug, it doesn't matter.
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