Good evening. I have tried to run verification example 7 proposed by you in the wiki concerning the Eigenvalue analysis of a 3D frame with rigid floor diaphragm. I would like to ask why in the modal report of the results, it turns out that I have a significant mass of participation for rotation around the x-axis and y-axis that I should not have because I have "locked" the degrees of freedom relative to rotation in x and y.
Thank you and I hope someone will reply.
Good evening. I have tried to run verification example 7 proposed by you in the wiki concerning the Eigenvalue analysis of a 3D frame with rigid floor diaphragm. I would like to ask why in the modal report of the results, it turns out that I have a significant mass of participation for rotation around the x-axis and y-axis that I should not have because I have "locked" the degrees of freedom relative to rotation in x and y. Thank you and I hope someone will reply.