Hello,
I am using the eigen value I got to compute the system period for my 2D steel moment frame.
- I wonder how the modal eigen values are obtained
- by adding more elements (refining mesh), for my 2D frame, why the beams are much more sensitive than columns to the system period?
- How (if possible) can I see my mass and stiffness matrix in OpenSees?
TY for your time and patience.
question about modes and periods
Moderators: silvia, selimgunay, Moderators
To solve eigenvalue problem there are different solvers available in OpenSees:
http://opensees.berkeley.edu/wiki/index ... en_Command
At the moment there is no recorder for the mass and stiffness matrix. Alternatively, you can spit it out from the source code.
http://opensees.berkeley.edu/wiki/index ... en_Command
At the moment there is no recorder for the mass and stiffness matrix. Alternatively, you can spit it out from the source code.
problem solved
Thank you for your reply.
My problem is solved.
Zhan
My problem is solved.
Zhan