Newmarks method for implicit dynamic analysis
Newmarks method for implicit dynamic analysis
(OP)
I have used Newmark's method wherein my damping matrix was generated through a combination of mass and stiffness matrix (Rayleigh damping).
IS it possible to use the Newmark's method if the damping matrix is non diagonal?
Regards
Ash
IS it possible to use the Newmark's method if the damping matrix is non diagonal?
Regards
Ash
RE: Newmarks method for implicit dynamic analysis
The matrix formulation isn't too much different from the SDOF formulation, but if you're using Excel it may be a bit painful. If you have access to Matlab or MathCAD, or a free alternative, they should be able to make short work of it.
My go-to text for this is Chopra, third edition, which covers this in Section 15.2. You can also probably find a good online reference fairly easily.