Flutter Analisys (sol145) Nastran/Patran/Flightloads

[Gio_10]

hi.i m a student engineering. i m trying to do a flutter analysis (sol145) post the normal modes analisys.

i m following a tutorial, but i m really blocked to the creation of splines. i m using patran2019 but i can follow tutorial cuz i m not able to see that in my version patran. how can i solve?

tutorial:

5. Define Splines

Flight Loads/Aeroelasticity/Aero-Structure Coupling…

Action: Create

Object: Surface

Method: General

Spline Name

spline

Structural Points

Nodes Groups

Select Groups…

Existing Groups: default_group

Close

Aero Boxes

Elements Surface

Existing Surface…

Existing Surfaces: aero

Close

Apply

me: aerostructure coupling

create

surface spline

tipy: infinite plate (and there isnt method)

select structural nodes

select aero grids

input data.

[Jee-Bee]

Do you use nastran in combination with FreeCAD??

[Gio_10]

nono.. i use patran (preproc) and nastran for this flutter analysis. why

[Jee-Bee]

Quite simple the Forum is all about FreeCAD.
FreeCAD have a small FEM module but based on Calulix , Z88, Elmer, openFOAM as main solvers. Don't know if anybody here as some experience with Nastran