Recent content by Zaid

Thank you timmay I've done the two tests experimentally and I got reduction in zeta to bout 50%. However I'm looking for a mathematical proof explaining this reduction.

Thank you Timmay What I have is reduction in mass and stiffness but the damping c will decreases accordingly. So zeta and c are not fixed and unknown. Zeta can be found if the initial displacement, the final displacement and the time difference. Therefore for both cases if we started with...

No body helped in that. I really need a help Does using kinetic and potential energies help in that? Any idea?

If I have mass-spring system with certain damping factor, what is the expected reduction in the damping if the mass is reduced by 25% and the spring stiffness by 50%? It is clear that the damping will decrease but how much? can anyone helps me in that?