I am trying to run a frequency/harmonic analysis and I get an error message which says: A Tstep card in case control has an invalid set ID of 1.
I have checked as a reference the video - https://www.youtube.com/watch?v=aRduXRq4TkA.
The video does not show how to insert results from a previous modal analysis.
I did not perform such analysis.
I therefore have a number of questions:
* What does the Tstep card refer to and how to solve this error?
* I understand that the harmonic analysis can be based on a modal analysis, or run independently. How can either option be selected?
* Are there any online examples showing all the steps required to perform a harmonic analysis?
Solved! Go to Solution.
Good day, thanks for your message.
Yes, I had a look to the examples but I still was not able to solve this test.
Its true, trying with 4.Frequency/harmonic response the TSTEP warning is not a problem anymore.
Now,I get a new error message: USER FATAL MESSAGE 6683 (FRRD1A).
But it looks like more realistic.
I am quite new with FEMAP-NASTRAN and I am still struggling around with my test cases.
In the .f06 I get the following error:
*** USER INFORMATION MESSAGE 480 (XSEMIN)
JOB TERMINATED DUE TO LACK OF SOL, COMPILE, OR LINK CARDS IN THE EXECUTIVE CONTROL SECTION.
But I am not sure what they mean with that and how to correct it. Can someone shed some light over that issue?.
Yes, it means you have not selected any analysis type (eg. statics, modes, frequency response etc.).
If you are new to Femap, then you should start with (all) the simple example problems. Follow each step. Then it will become easier for you to understand the basics of how it works, and why things may be going wrong. This will be time well spent.
I realise the examples are very geometrically simple models, but they do cover quite a few procedural points related to analysis setup, which is what your questions have been related to so far.
The modal and harmonic simulation has been succesfully performed.
Now, I am interpretating the results. The chart says plate top xy shear stress vs set value.
It is not clear for me what "set value" means.