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.

Singularity in Stiffness matrix

Please login with a confirmed email address before reporting spam

This is the model of a tritare which has three stretched strings connected at the center. I undestand that it has a multifreedom constraint at the center. But still I believe it should be able to compute the eigenfrequencies for the structure. In the general study it says that the stiffness matrix is singular but I believe it is well constrained.

Any help would be appreciated.


0 Replies Last Post 30 set 2019, 19:02 GMT-4
COMSOL Moderator

Hello Vishvesh Koranne

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.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.