Hello,
I run a static analysis (SOL101) using the parameter INREL,-2.
My structure has 6 rigid body modes + 1 mechanism mode in dof 6 (mode at 0.06 Hz with modal effective masses = 0 in all dof).
On the Natsran QRG I see that if the structure has more then 6 rigid body degrees of freedom, the analysis with INREL,-2 will give incorrect results.
So how do I verify that my mode at 0.06 Hz is not causing any trouble? (Of course I could run the same analysis blocking the mechanism dof and comparing the results, but since the run takes a while I would prefer to try first some other verification approach, if any).
What I tried up to now is checking the OLOAD Resultant.
If I apply a pressure of 1000 Pa to a surface (only in X direction for example), in the OLOAD I should see the total force applied (so Pressure*Area) in the direction of application (X --> T1), right?
What I see however are also components in R2 and R3 (R2 has the same order of magnitude as T1, R3 one order of magnitude lower).
Any help will be really appreciated.
Thank you!
