umarkhan
Mar6-11, 11:28 AM
hello,
I have made an FEM simulation of a cantilever beam in Matlab. I have included the damping using damping matrix C= alpha x M + beta x K. Problem is that I want to compare my result with this paper
http://flyingv.ucsd.edu/rvazquez/Journal/nano.pdf (See eq.1)
where the author has put the damping in the Euler Bernoulli equation directly as follows,
EIzxxxx(x,t) + czdot(x,t) + mzddot(x,t) = -u(t)
Question is how do I convert alpha and beta to c which is used for damping in the Euler Bernoulli eq?
Umar.
I have made an FEM simulation of a cantilever beam in Matlab. I have included the damping using damping matrix C= alpha x M + beta x K. Problem is that I want to compare my result with this paper
http://flyingv.ucsd.edu/rvazquez/Journal/nano.pdf (See eq.1)
where the author has put the damping in the Euler Bernoulli equation directly as follows,
EIzxxxx(x,t) + czdot(x,t) + mzddot(x,t) = -u(t)
Question is how do I convert alpha and beta to c which is used for damping in the Euler Bernoulli eq?
Umar.