12 March 2019
- Last edited 12 March 2019
To export the mode shape and frequency from a modal analysis in a format friendly to CFX use the EXPROFILE command inside the /POST1 processor.
Note this command isn't supported in Distributed ANSYS, so you need to have "Distribute Solution (if possible)" unticked in Tools->Solve Process Settings->My Computer --> Advanced.
In a Mechanical Modal analysis this means adding a command snippet under "Solution" in tree (i.e. with result objects).
Please have a look at EXPROFILE command in ANSYS Help documentation for further information:
The commands needed will be something like:
SET,1,1 ! mode 1
CMSEL,S,BLADE ! select blade named selection nodes
ESLN ! select attached elements
EXPROFILE,SURF,MODE,0,'MESHDISP',DISP1,CSV ! export normalised mode shape on surface with field name 'meshdisp', file name disp1 extension CSV
ALLSEL !select all
where BLADE is a named selection of faces representing the blade surface.
More info on the process here:
Check that you're not using an unsupported mode-extraction method such as unsymmetric, damped or qr-damped. This is unlikely unless your modal analysis is doing something fancy like rotordynamics or acoustics.
Hope this helps. Please do let me know if you have any questions.