Thank you very much for the content. Can you share the model via Siemens Community or Support Center so that we can try the demo ourselves? Thanks in Advance!
Simcenter 3D does not support the Piston method, however, we plan to support supersonic flutter through the integration of technology from Zona which we recently acquired. press.siemens.com/global/en/pressrelease/siemens-acquires-zona-technology-inc-increases-xcelerator-capabilities-climate-neutral#:~:text=The%20addition%20of%20the%20ZONA,of%20more%20sustainable%20aerospace%20invention.
@@Simcenter3DTipsandTricks Thank You so much for the answer, however I am a little confused. The Simcenter Nastran 2020 Aeroelastic Analysis User's guide states in section 1.3 that Simcenter Nastran includes six aerodynamic theories, among which is piston theory. Is there software other than Simcenter 3D which uses the Simcenter Nastran solver and has the ability to use the listed theories?
Nastran has been around longer than any preprocessor for it. It was originally created in the 1960's in support of the Apollo moon missions. It stands for NASa STRuctural ANalysis. Engineers originally hand made a deck of punch cards as an input file to run an analysis. After running the deck, they would then read through the f06 result file to evaluate the results. Since Nastran predates preprocessors, there are some capabilities in Nastran that are not supported by any preprocessor. There is no software I am aware of that supports preprocessing for the piston theory. If this capability would be valuable to you, I encourage you to submit an enhancement request at the support center here: support.sw.siemens.com/en-US/ or you can call us at 800-955-0000 in the US. Even without piston theory support, Simcenter 3D should be able to get you most of the way there using one of the supported aeroelastic theories. You can then either add user defined text to the model in Simcenter 3D or hand edit the Nastran input file to add the necessary cards to support the piston theory.
You've misidentified the true flutter mode which is mode 1. Your frequency and damping trend plots for modes 1 & 2 are not curve fit properly. Suggest you increase the airspeed fidelity where the modes become unstable. Also, the complex mode 2 shape doesn't look right, seems like there's some constraints at the wing tip area. I realise you are only showing the simcenter workflow so it's not a big deal.
I agree with your assessment. Simcenter 3D software development is working on the issues. I will post an updated demonstration once the issues are resolved.
I look forward to using the Zona Tech suite via Simcenter. Is there a timeline for a product release and is the intent to get all of Zona's products working in Simcenter? Thank you,
Please see video in link for how to animate flutter mode shapes using the At Phase Angle option ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-iWxDKu-DpTg.htmlsi=Mvz0dcR5XoycxU2m
There is a similar model of a wing box in Xcelerator Academy. training.plm.automation.siemens.com/index.cfm Select My Libraries. After you log in you can download the parts from here: du8t0r5o6uqcx.cloudfront.net/references/Simcenter3D/HTML/Pre_Post_Lab_Files_2212.zip then look for P069.