Hallo all,
I am writing a script in ANSYS workbench to perform Random Vibration analysis. The PSD response is entererd in the APDL command file. It is not entered in the GUI because I calculate the Exitation based on the input PSD signal multiplied by a Transfer function of a Transfer Box. The goal of this work is to optimize the Transfer Box properties. Therefore, Parametric study is performed and all the input and the outputs are defined in the APDL command line.
So the question is: How can I print the PSD signal before and after multiplying it by the Transfer function ? Is there any APDL command to be used to print that figure?
Thanks in advance
Mohamed
Thanks Claudio for your kindest answer. Yes I mean plotting and then extracting it for later presentation. I have tried PSDGRAPH but it didnt work. I will try *VWRITE and *VPLOT....
thanks alot
Here is the part of the APDL script:
antype,spectr
spopt,psd,6
dmprat,0.00 ! Constant Damping Ratio
psdcom,0.00
psdres,disp,rel
cmsel,s,FixedSupport
nsel,r,d,uz,0
d,all,uz,1
nsel,all
cmsel,all
PSDUNIT,1,ACEL
PSDFRQ,1,,f_PSD(1),f_PSD(2),f_PSD(3),f_PSD(4)
PSDVAL,1,PSD_Input(1),PSD_Input(2),PSD_Input(3),PSD_Input(4)
PSDGRAPH,4
GPLOT
pfact,1,base
nsel,s,d,uz,1
d,all,uz,0
nsel,all
outpr,nsol,all
*vwrite,PSDFRQ,PSDVAL
*vplot,PSDFRQ,PSDVAL
There is no error writen but also there is no graph to be seen
Hallo Claudio,
Thank you again for your kindest reply. I wanted only to tell you that it works and I have extracted png graphs.
Best regards
Mohamed
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