Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Re : prestressed eigen analysis
Posted 09-Aug-2010, 5:59 AM GMT-4 0 Replies
Please login with a confirmed email address before reporting spam
I got an query in prestressed eigen analysis.In comsol, we go a static analysis with large deformation on , then use this as a linearization point for the eigen analysis.
1) What is linearization point or related in comsol? what variables are considered from the static analysis to the eigen analysis ? Is it displacements alone or some stresses ?
2) As far I a know , eigen analysis is independent of forces , so why static analysis is required, ? Can some elaborate the matrix methodology involved here?
3) Is that , we obtain the displacements and substitute them in U(transpose) K U/ U(transpose) M U ... so obtain the frequecy?
use the deformed profile of structure as starting profile , build the K and M matrix , use for Eigen analysis???
Please help me with the background of this problem......
Hello Shyamsananth Madhavan
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.