Thank you, these informations are very useful.
I read the thesis and looked after the input decks he used, but he was not using *COMPLEX FREQUENCY
in his code. I’m a little bit confused where to put the keyword in the input deck.
Should i add:
*Step, *COMPLEX FREQUENCY,CORIOLIS
10
*End Step
at the end of the input deck, or is this incomplete?
The Steps in my input deck look like this:
** Steps +++++++++++++++++++++++++++++++++++++++++++++++++++
**
**
** Step-1 ++++++++++++++++++++++++++++++++++++++++++++++++++
**
*Step, Inc=100
*Static
1, 1, 1E-05, 1E+30
**
** Output frequency ++++++++++++++++++++++++++++++++++++++++
**
*Output, Frequency=1
**
** Boundary conditions +++++++++++++++++++++++++++++++++++++
**
*Boundary, op=New
** Name: Fixed-1
*Boundary
Internal_Selection-1_Fixed-1, 1, 6, 0
**
** Loads +++++++++++++++++++++++++++++++++++++++++++++++++++
**
*Cload, op=New
*Dload, op=New
** Name: Centrifugal_Load-1
*Dload
Internal_Selection-1_Centrifugal_Load-1, CENTRIF, 20277009, 0, 0, 0, 0, 0, -1
**
** Defined fields ++++++++++++++++++++++++++++++++++++++++++
**
**
** History outputs +++++++++++++++++++++++++++++++++++++++++
**
**
** Field outputs +++++++++++++++++++++++++++++++++++++++++++
**
*Node file
RF, U
*El file
S, E, NOE
**
** End step ++++++++++++++++++++++++++++++++++++++++++++++++
**
*End step
**
** Step-2 ++++++++++++++++++++++++++++++++++++++++++++++++++
**
*Step, Perturbation
*Frequency, Storage=Yes
12
**
** Output frequency ++++++++++++++++++++++++++++++++++++++++
**
*Output, Frequency=1
**
** Boundary conditions +++++++++++++++++++++++++++++++++++++
**
*Boundary, op=New
** Name: Fixed-1
*Boundary
Internal_Selection-1_Fixed-1, 1, 6, 0
**
** Loads +++++++++++++++++++++++++++++++++++++++++++++++++++
**
**
** Defined fields ++++++++++++++++++++++++++++++++++++++++++
**
**
** History outputs +++++++++++++++++++++++++++++++++++++++++
**
**
** Field outputs +++++++++++++++++++++++++++++++++++++++++++
**
*Node file
RF, U
*El file
S, E, NOE
**
** End step ++++++++++++++++++++++++++++++++++++++++++++++++
**
*End step
*Step, *COMPLEX FREQUENCY,CORIOLIS
12
*End Step
When i run this, the analysis monitor writes:
*WARNING reading *STEP: parameter not recognized:
*COMPLEXFREQUENCY
*WARNING reading *STEP. Card image:
*STEP,*COMPLEXFREQUENCY,CORIOLIS
*WARNING reading *STEP: parameter not recognized:
CORIOLIS
*WARNING reading *STEP. Card image:
*STEP,*COMPLEXFREQUENCY,CORIOLIS
*WARNING in calinput. Card image cannot be interpreted:
*WARNING reading the input file. Card image:
12
Frequency analysis was selected
and i can’t open the results
I hope this is enough information to my setup.
Another question ist, do i have to repeat this analysis for multiple rotational frequencys and evaluate the eigenmode frequencys in order to get a campbell diagram?
Best Regards
Eric
![Mapped temperatures [K], after 117 sec at full rated conditions.](http://www.calculix.de/fw05_3D_thermal.png){kind=link}