SimScale CAE Forum

Prestressed Modal Analysis


#1

I am performing pre-stressed modal analysis of a aircraft wing to calculate its first five natural frequencies and mode shapes. For this, I need to perform first static analysis of the wing applying pressure at the bottom face keeping one end fixed and then Modal analysis using stress stiffness matrix generated from the static analysis.

For this, I am using frequency analysis type but the problem is in applying pressure for modeling pre-stressed condition.


#2

Hi,
currently there is no option yet to enable a pre-stressed Eigenmode Analysis.

Best,
Richard


#3

Mr. Richard,

Thanks a lot !!