interpretation analysis modal structure labile

[Onda]

If he moves, he's labile.
so it is a cinematism and not a fem analytic
If it is a door, it means that it leans on the other side and you have to bind the opposite side I assume in z (I no longer have your open model).

then he finds himself bound on two sides and is loaded with a pressure from above.

if you let him be bound on one side you can see? How do you load it? if you put a wheel pressure, as labile and it is no longer a fem anallisis.

 

[marulanda]

No! or better would be more complex mooolto you should study the shifts. better the plot, just 2 clicks

 

[volaff]

hello to everyone, taking this discussion for a little clarification.
In summary, it is corrected if wrong, you can use modal analysis to find the lability of a fem model.

if I did a modal analysis on a body without binding it I would get 6 frequencies almost null (equal to 6 gdl of the rigid body that I did not bind).
Is that correct?

In summary I will have so many zero frequencies as many gdl that I have not bound (all other ways of vibrating refer to elastic behaviors of the body).

Is that right?