Mass participation

[Anonymous]

I have only 18% mass participating in 40 modes. Could you give me your advice

Thanks

[t.sautierr]

And actually not interest to mesh if all is connected by rigid links right?
And the diaphragm (total rigid corpse) has got only 6 degrees (3 position plus 3 angles) right?

[Rafal.Gaweda]

And actually not interest to mesh if all is connected by rigid links right?

But nodes exists and they are connected by rl

And the diaphragm (total rigid corpse) has got only 6 degrees (3 position plus 3 angles) right?

As every node dof in 3D.

Diaphragm is kind of rigid link (set of rigid links) connecting each node located on diapgragm area with master node.

So to reduce number of equations you have to decerase number of nodes in model.

[t.sautierr]

Ok got it I think.
then If he wants to reduce the number of nodes the bes is to use a cladding for the loads and RL for the diaphragm effect.
If a pannel is used and set to diaphragm, normally there will be always mesh and the nodes unless the pannel model is set to use no EF, right?

Thx one more time ...

[Rafal.Gaweda · Accepted solution]

Not always, it depends on calcaulation model :

(My recommended settings for flexible diaphragm)