Converting Static FEM into "Stick" Model for Flutter Analysis

[stm6602]

Hi everyone, I've a reasonably fine-meshed FEM comprising of approx. 20K elements (mainly CQUAD's) of aircraft. Its a Nastran FEM, and its made of composite materials developed using Patran. I'll like to create a "stick" model representation of this aircraft so that we can use it for further aeroelasticity studies, e.g flutter analysis. To do so, I understand we have to develop the EI-GJ representation, as well as mass properties of the aircraft. Is there any utilities within Patran that can allow us to extract the EI-GJ fairly automatically?

Thanks!

 

[Onda]

You can use the Patran utility Section Tool.
with this utility you can easily calculate section property.
You can find it Utilities> General > Section Tool.

hope this help